{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"采用Potts模型Monte Carlo方法对3种现存的三维个体晶粒长大速率拓扑依赖性\n方程进行了仿真验证. 结果表明, Rivier速率方程认为晶粒\n体积变化率dVf/dt与晶粒面数f成线性关系, 与仿真\n结果明显不符, 不适用于描述三维晶粒长大过程的动力\n学. 当晶粒面数f≥8时, Yu-Liu速率方程和\nMacPherson-Srolovitz速率方程均与仿真结果很好吻合,\n表明这两者均可以用来定量描述三维晶粒长大过程的动力学；当\nf＜8时, 这两个方程均与仿真结果有显著差异.","authors":[{"authorName":"王浩","id":"4520bc40-73ff-4fe0-ad04-dada21a66155","originalAuthorName":"王浩"},{"authorName":"刘国权","id":"3e4e217d-2a80-4b05-8197-b2e52e7e6750","originalAuthorName":"刘国权"},{"authorName":"秦湘阁","id":"66aa648a-1b1d-4499-86db-9dac627280d6","originalAuthorName":"秦湘阁"}],"categoryName":"|","doi":"","fpage":"13","id":"075a785f-8718-477c-a4ac-8719e1cf5f9b","issue":"1","journal":{"abbrevTitle":"JSXB","coverImgSrc":"journal/img/cover/JSXB.jpg","id":"48","issnPpub":"0412-1961","publisherId":"JSXB","title":"金属学报"},"keywords":[{"id":"b09e3662-9f08-4a8e-bd64-95f5706d5f51","keyword":"三维晶粒长大","originalKeyword":"三维晶粒长大"},{"id":"c24e1f7b-4f9f-4982-b5ad-c9fed7c85b04","keyword":"<span style=\"color:red\">topology-dependent</span> <span style=\"color:red\">grain</span> <span style=\"color:red\">growth</span> <span style=\"color:red\">rate</span> <span style=\"color:red\">equation</span>","originalKeyword":"topology-dependent grain growth rate equation"}],"language":"zh","publisherId":"0412-1961_2008_1_16","title":"三维晶粒长大速率方程的大尺度Potts模型Monte Carlo仿真验证","volume":"44","year":"2008"},{"abstractinfo":"The mechanism of <span style=\"color:red\">grain</span> structure evolution during directional solidification is a fundamental subject in material science. Within the published research there exist conflicting views on the mechanism of <span style=\"color:red\">grain</span> overgrowth. To study the effect of solidification <span style=\"color:red\">rate</span> on <span style=\"color:red\">grain</span> structure evolution, bi-crystals samples were produced in a nickel-base superalloy at different solidification rates. It was found that at the convergent <span style=\"color:red\">grain</span> boundaries those grains better aligned with respect to the heat flux more readily overgrew neighbouring grains with misaligned orientations and the effect became more pronounced as solidification <span style=\"color:red\">rate</span> was increased. However, at diverging <span style=\"color:red\">grain</span> boundaries the <span style=\"color:red\">rate</span> of overgrowth was invariant to the solidification <span style=\"color:red\">rate</span>. These experimental results were compared with models in the literature. Thus, a better insight into competitive <span style=\"color:red\">grain</span> <span style=\"color:red\">growth</span> in directional solidification processes was obtained.","authors":[],"categoryName":"|","doi":"","fpage":"1327","id":"5b699b94-a379-4092-a0fd-b84069e89008","issue":"5","journal":{"abbrevTitle":"SCS","id":"8e02334e-0007-4675-9eda-1bc1d39b75d9","issnPpub":"1674-7321","publisherId":"SCS","title":"Science China-Technological Sciences"},"keywords":[{"id":"7bd923d7-d135-4636-9177-8e9b0e49e2a9","keyword":"competitive <span style=\"color:red\">grain</span> <span style=\"color:red\">growth</span>;structure evolution;directional;solidification;nickel alloys;x-ray;selection;morphologies;orientation;prediction;evolution;alloy","originalKeyword":"competitive grain growth;structure evolution;directional;solidification;nickel alloys;x-ray;selection;morphologies;orientation;prediction;evolution;alloy"}],"language":"en","publisherId":"1674-7321_2012_5_1","title":"Effect of solidification <span style=\"color:red\">rate</span> on competitive <span style=\"color:red\">grain</span> <span style=\"color:red\">growth</span> in directional solidification of a nickel-base superalloy","volume":"55","year":"2012"},{"abstractinfo":"The effect of electropulsing on nanocrystalline <span style=\"color:red\">grain</span> <span style=\"color:red\">growth</span> in amorphous material is considered. A size-<span style=\"color:red\">dependent</span> <span style=\"color:red\">growth</span> <span style=\"color:red\">rate</span> of a nanoscale <span style=\"color:red\">grain</span> is revealed, which is due to the size-<span style=\"color:red\">dependent</span> electrical resistivity. A suspension effect is found when the density of electric current is at a critical value j(c). The formed <span style=\"color:red\">grain</span> may shrink when the density of applied electric current is higher than j(c). Numerical calculation shows that j(c) is about 2.59 x 10(3) A/mm(2) for nanocrystalline Ni80P20 alloy with <span style=\"color:red\">grain</span> size of 13 nm. (C) 1998 Acta Metallurgica Inc.","authors":[],"categoryName":"|","doi":"","fpage":"71","id":"df5f4b2a-e4d3-4019-bb73-13aa67ed205f","issue":"1","journal":{"abbrevTitle":"NM","id":"cc88b34d-fd3e-4cdd-8396-bdba97e827f1","issnPpub":"0965-9773","publisherId":"NM","title":"Nanostructured Materials"},"keywords":[{"id":"2eb0466b-f83f-42b5-88df-c9d618f39e77","keyword":"passing electric-current;structural relaxation;amorphous cu50ti50;crystallization;resistivity;alloys","originalKeyword":"passing electric-current;structural relaxation;amorphous cu50ti50;crystallization;resistivity;alloys"}],"language":"en","publisherId":"0965-9773_1998_1_1","title":"Suspension effect of nanocrystalline <span style=\"color:red\">grain</span> <span style=\"color:red\">growth</span> under electropulsing","volume":"10","year":"1998"},{"abstractinfo":"<span style=\"color:red\">Grain</span> <span style=\"color:red\">growth</span> process in nanocrystalline Ni-P alloys was investigated by use of differential scanning calorimetry and x-ray diffraction. Two exothermal peaks which result from <span style=\"color:red\">grain</span> <span style=\"color:red\">growth</span> processes of Ni3P and Ni crystallites, respectively, have been detected upon heating the nanocrystalline samples at constant heating rates. Activation energies for the two processes of <span style=\"color:red\">grain</span> <span style=\"color:red\">growth</span> were calculated by means of the relationship of <span style=\"color:red\">grain</span> <span style=\"color:red\">growth</span> temperature and heating <span style=\"color:red\">rate</span> using the Kissinger <span style=\"color:red\">equation</span>. Average interfacial energies of Ni3P/Ni3P <span style=\"color:red\">grain</span> boundary and Ni3P/Ni boundary were determined from the heat released during <span style=\"color:red\">grain</span> <span style=\"color:red\">growth</span>.","authors":[],"categoryName":"|","doi":"","fpage":"7345","id":"b371f36b-6a13-4168-a685-6e07d5804668","issue":"10","journal":{"abbrevTitle":"JOAP","id":"7dcf8a89-0513-40ee-be2d-759941dcef7e","issnPpub":"0021-8979","publisherId":"JOAP","title":"Journal of Applied Physics"},"keywords":[],"language":"en","publisherId":"0021-8979_1991_10_5","title":"<span style=\"color:red\">GRAIN-GROWTH</span> KINETICS AND INTERFACIAL ENERGIES IN NANOCRYSTALLINE NI-P ALLOYS","volume":"69","year":"1991"},{"abstractinfo":"A novel parameter is suggested for evaluating the fatigue crack <span style=\"color:red\">growth</span> <span style=\"color:red\">rate</span> in carbonsteels.Fatigue crack propagation tests of an annealed 0.42% carbon steel were carriedout under different conditions to investigate the relationship between this dominatingparameter and the crack opening displacement (COD).A new <span style=\"color:red\">equation</span> of fatiguecrack <span style=\"color:red\">growth</span> <span style=\"color:red\">rate</span> is formulated in terms of the suggested parameter.The physicalmeanings of the material parameters in this <span style=\"color:red\">equation</span> are explored experimentally.Considering the relation of crack <span style=\"color:red\">growth</span> and deformation properties,a simple andapplicable method is proposed to evaluate the fatigue crack <span style=\"color:red\">growth</span> <span style=\"color:red\">rate</span>.It is alsoobserved that the material parameters in the fatigue crack <span style=\"color:red\">growth</span> <span style=\"color:red\">rate</span> <span style=\"color:red\">equation</span> ofcarbon steels are related linearly to the material strength.The results are in a goodagreement with experimental results.","authors":[{"authorName":"X.S.Wang","id":"aadfdd1d-4401-4f9f-b0c2-4f024a356ffd","originalAuthorName":"X.S.Wang"},{"authorName":" S.Q.Zhu","id":"09a54693-f5cd-46ae-a229-ea5626c1f05e","originalAuthorName":" S.Q.Zhu"}],"categoryName":"|","doi":"","fpage":"271","id":"61c95c01-3cbb-4db7-b9f4-191887c99f51","issue":"4","journal":{"abbrevTitle":"JSXBYWB","coverImgSrc":"journal/img/cover/amse.jpg","id":"49","issnPpub":"1006-7191","publisherId":"JSXBYWB","title":"金属学报(英文版)"},"keywords":[{"id":"6903a57f-239a-49d8-acaa-c61b98b54e40","keyword":"crack opening displacement","originalKeyword":"crack opening displacement"},{"id":"8d77f92a-df31-4336-8060-3fa4fa39eed7","keyword":"null","originalKeyword":"null"},{"id":"dd006637-ef76-4576-9a75-20354647f5cf","keyword":"null","originalKeyword":"null"},{"id":"91d28554-1abc-4083-aef0-a60d92736fa3","keyword":"null","originalKeyword":"null"}],"language":"en","publisherId":"1006-7191_2001_4_9","title":"A NOVEL PARAMETER FOR EVALUATING THE FATIGUE CRACK <span style=\"color:red\">GROWTH</span> <span style=\"color:red\">RATE</span> IN CARBON STEELS","volume":"14","year":"2001"},{"abstractinfo":"From single phase to two-phase alloys, creep crack <span style=\"color:red\">growth</span> behavior of Fe-15Cr-25Ni austenitic steels has been examined for different <span style=\"color:red\">grain</span> sizes at 973 and 1123 K. The creep crack <span style=\"color:red\">growth</span> <span style=\"color:red\">rate</span> increases with increasing <span style=\"color:red\">grain</span> size. An <span style=\"color:red\">equation</span> was found to describe the relation between the initiation time t(i) or rupture time t(r) and <span style=\"color:red\">grain</span> size d: t(r(i)) . d(beta) = C. The precipitation of <span style=\"color:red\">grain</span> boundary carbide decreases the effect of <span style=\"color:red\">grain</span> size on creep crack <span style=\"color:red\">growth</span>. Different <span style=\"color:red\">grain</span> size dependences on creep crack <span style=\"color:red\">growth</span> in other materials were also analysed. A damage model based on constrained cavity <span style=\"color:red\">growth</span> was shown to provide good predictions on the <span style=\"color:red\">grain</span> size effect on creep crack <span style=\"color:red\">growth</span> behavior.","authors":[],"categoryName":"|","doi":"","fpage":"450","id":"6d7b0e6a-077a-4c22-ac0e-fadf166dd18f","issue":"5","journal":{"abbrevTitle":"MTJ","id":"2d4614a6-de1c-4df9-ba6b-a783f09d7b2d","issnPpub":"0916-1821","publisherId":"MTJ","title":"Materials Transactions Jim"},"keywords":[{"id":"94fa5239-e5c8-4ee4-a6f6-6fd06f093b22","keyword":"creep;crack <span style=\"color:red\">growth</span> <span style=\"color:red\">rate</span>;rupture time;<span style=\"color:red\">grain</span> size;austenitic steel","originalKeyword":"creep;crack growth rate;rupture time;grain size;austenitic steel"}],"language":"en","publisherId":"0916-1821_1993_5_1","title":"<span style=\"color:red\">GRAIN</span>-SIZE DEPENDENCE OF CREEP CRACK-<span style=\"color:red\">GROWTH</span> IN NI-CR AUSTENITIC STEELS","volume":"34","year":"1993"},{"abstractinfo":"Abstract： <span style=\"color:red\">Growth</span> process of δ-phase was studied during the solidification of carbon steel. Through analyzing the solute diffusion around cylindrical crystals in the melt, the mathematic representation of lateral <span style=\"color:red\">growth</span> <span style=\"color:red\">rate</span> of cylindrical crystals was confirmed; the calculation and analysis of lateral <span style=\"color:red\">growth</span> <span style=\"color:red\">rate</span> were carried out. In order to validate the theoretical calculation and analysis, the <span style=\"color:red\">growth</span> process of δ-phase during the solidification was in-situ observed using a confocal scaning laser microscope (CSLM) and the <span style=\"color:red\">growth</span> rates were measured through CSLM images. The results show that lateral <span style=\"color:red\">growth</span> rates of δ-phase in the carbon steel first rapidly decrease with the increase of the radius of the cylindrical crystal, and then slowly fall down or maintain invariable. The radius of δ-phase is the primary factor to affect the <span style=\"color:red\">growth</span> <span style=\"color:red\">rate</span>. The higher the temperature gradient is, the bigger the <span style=\"color:red\">growth</span> <span style=\"color:red\">rate</span> is. However, the effect of the temperature gradient is feeble. Good correlation is obtained between theoretical analysis and experiment results in absolute values of lateral <span style=\"color:red\">growth</span> <span style=\"color:red\">rate</span> and change rule.","authors":[{"authorName":"CHANG Guo-wei","id":"16d2b16a-1e62-4775-965d-e6303774f69a","originalAuthorName":"CHANG Guo-wei"},{"authorName":"CHEN Shu-ying","id":"f80f6bd3-433b-41aa-b358-dc365a96301a","originalAuthorName":"CHEN Shu-ying"},{"authorName":"LI Qing-chun","id":"7b64a668-dda0-4852-bf60-efbd0bdbcf99","originalAuthorName":"LI Qing-chun"},{"authorName":"YUE Xu-dong","id":"c334a3bd-1135-4753-bd5f-db7c2aa0a5d7","originalAuthorName":"YUE Xu-dong"},{"authorName":"JIN Guang-can","id":"402679a9-a449-4846-a5ce-7d17dc3d8016","originalAuthorName":"JIN Guang-can"}],"categoryName":"|","doi":"","fpage":"28","id":"7fe2ba51-30c0-45ed-83e3-5207d057eb8c","issue":"4","journal":{"abbrevTitle":"GTYJXBYWB","coverImgSrc":"journal/img/cover/GTYJXBEN.jpg","id":"1","issnPpub":"1006-706X","publisherId":"GTYJXBYWB","title":"钢铁研究学报(英文版)"},"keywords":[{"id":"e66ff7bd-b9c9-422a-840e-a34edc8a935d","keyword":"Key words: cell <span style=\"color:red\">growth</span> ","originalKeyword":"Key words: cell growth "},{"id":"f43a05ef-ddfa-4f97-8abf-7f5a73f43bb8","keyword":"  solidification process ","originalKeyword":"  solidification process "},{"id":"54ee7352-594f-4cea-9638-ddcd1a3f01f9","keyword":"  carbon steel ","originalKeyword":"  carbon steel "},{"id":"4a8fb7ed-59ef-45ea-a08a-d93e8d00a0eb","keyword":"  in-situ observation","originalKeyword":"  in-situ observation"}],"language":"en","publisherId":"1006-706X_2012_4_11","title":"Lateral <span style=\"color:red\">Growth</span> <span style=\"color:red\">Rate</span> of Cells in Melt","volume":"19","year":"2012"},{"abstractinfo":"A single phase HfNi5 nanocrystalline (NC) sample was prepared by quenching a Hf11Ni89 alloy with the melt-spinning technique. A randomly oriented HfNi5 nanophase material with an average <span style=\"color:red\">grain</span> size of about 10 nm was formed in the as-quenched state. Differential scanning calorimetry (DSC), transmission electron microscopy (TEM), and X-ray diffraction (XRD) analysis were used for the investigation of the thermal stability and <span style=\"color:red\">grain</span> <span style=\"color:red\">growth</span> of the NC HfNi5 sample. On heating the NC sample at a constant heating <span style=\"color:red\">rate</span>, two exothermal peaks appear in the DSC curve, corresponding to a <span style=\"color:red\">grain-growth</span> process of the HfNi5 nanophase prior to a precipitation process of Ni solid solution. It was found the <span style=\"color:red\">grain-growth</span> temperature of the NC HfNi5 phase is approximately equal to the crystallization temperature of the same compositional amorphous alloy. The average <span style=\"color:red\">grain</span> boundary energy in the NC sample calculated by means of the calorimetric results, is about 0.36J/m(2). Activation energies for the <span style=\"color:red\">grain</span> <span style=\"color:red\">growth</span> and Ni precipitation are calculated by using the Kissinger <span style=\"color:red\">equation</span>. It was obtained that the value of the activation energy for the HfNi5 nanophase <span style=\"color:red\">grain</span> <span style=\"color:red\">growth</span> is close to that for the volume self-diffusion in Hf. The <span style=\"color:red\">grain</span> <span style=\"color:red\">growth</span> mechanism and the thermal stability of the NC material are also discussed.","authors":[],"categoryName":"|","doi":"","fpage":"2641","id":"45f7b94b-818c-4c99-be95-424a7b028e37","issue":"7","journal":{"abbrevTitle":"AMEM","id":"4f81a190-bef1-4aad-9252-7d3fd7514903","issnPpub":"0956-7151","publisherId":"AMEM","title":"Acta Metallurgica Et Materialia"},"keywords":[{"id":"9cd3076f-4d27-4e3c-bec4-d8256d263b37","keyword":"ni-p alloys;nanocrystalline","originalKeyword":"ni-p alloys;nanocrystalline"}],"language":"en","publisherId":"0956-7151_1995_7_1","title":"THERMAL-STABILITY AND <span style=\"color:red\">GRAIN-GROWTH</span> OF A MELT-SPUN HFNI5 NANOPHASE ALLOY","volume":"43","year":"1995"},{"abstractinfo":"The available experimental results have been summarized concerning the effect of <span style=\"color:red\">grain</span> size on minimum creep <span style=\"color:red\">rate</span>.There are two types of creep <span style=\"color:red\">rate-grain</span> size relations.One is that there is a criti- cal <span style=\"color:red\">grain</span> size above which creep <span style=\"color:red\">rate</span> is independent of <span style=\"color:red\">grain</span> size,below which creep <span style=\"color:red\">rate</span> increases with the decrease of <span style=\"color:red\">grain</span> size.The other is that there is an intermediate <span style=\"color:red\">grain</span> size at which creep resistance is optimum.The first relation usually occurs at higher temperatures(>0.5 T_m),and intermediate stress ranges,while the second relation at interme- diate temperature ranges(0.4-0.5 T_m)and higher stresses.For the two types of creep <span style=\"color:red\">rate-grain</span> size relations,the increase of the creep rates with the de- crease of <span style=\"color:red\">grain</span> size for small <span style=\"color:red\">grain</span> sizes is all due to <span style=\"color:red\">grain</span> boundary sliding.For large <span style=\"color:red\">grain</span> sizes,a dis- location climb mechanism is dominant in creep deformation for the first relation,while a Hall-Perch <span style=\"color:red\">grain</span> boundary strengthening effect is believed to play an important role by dislocation glide mechanism for the second relation.","authors":[{"authorName":"LI Pei'en ** Institute of Materials Science and Engineering","id":"e40c6329-7ed8-44a4-9890-2e14279f7bf8","originalAuthorName":"LI Pei'en ** Institute of Materials Science and Engineering"},{"authorName":"Shanghai Jiaotong University","id":"4361bd10-f54c-458e-b92a-b3320afa646f","originalAuthorName":"Shanghai Jiaotong University"},{"authorName":"Shanghai 200030","id":"2fdc20e7-ebab-4e6a-9c6d-31b9cb1ff9ed","originalAuthorName":"Shanghai 200030"},{"authorName":"China+ To whom correspondence should be addressed.","id":"39b14400-db67-4e4f-8312-986dcdb02167","originalAuthorName":"China+ To whom correspondence should be addressed."}],"categoryName":"|","doi":"","fpage":"119","id":"20a0a2c9-cbbe-4323-a9bb-da5fdff60672","issue":"2","journal":{"abbrevTitle":"CLKXJSY","coverImgSrc":"journal/img/cover/JMST.jpg","id":"11","issnPpub":"1005-0302 ","publisherId":"CLKXJSY","title":"材料科学技术（英文）"},"keywords":[{"id":"0075c70d-ed70-4b02-9753-7bbaa31fd532","keyword":"<span style=\"color:red\">grain</span> size","originalKeyword":"grain size"},{"id":"e5abcdfc-2374-49d6-9672-f9facd6c3650","keyword":"null","originalKeyword":"null"}],"language":"en","publisherId":"1005-0302_1992_2_1","title":"On <span style=\"color:red\">Grain</span> Size Dependence of Minimum Creep <span style=\"color:red\">Rate</span>","volume":"8","year":"1992"},{"abstractinfo":"A two-dimensional mesoscale cellular automaton algorithm is developed to Simulate curvature-driven <span style=\"color:red\">grain</span> <span style=\"color:red\">growth</span> during materials processing. In the present model, a deterministic switch rule for the <span style=\"color:red\">grain</span> <span style=\"color:red\">growth</span> is adopted, and thus the kinetics of the <span style=\"color:red\">grain</span> <span style=\"color:red\">growth</span> can be simulated quantitatively. In addition, the <span style=\"color:red\">grain</span>-boundary energy is <span style=\"color:red\">dependent</span> oil the misorientation between neighboring grains. At mesoscale, the simulations show that each <span style=\"color:red\">grain</span> displays a unique <span style=\"color:red\">growth</span> behavior. The <span style=\"color:red\">growth</span> behavior of individual grains can be categorized into four types: (1) grains with monotonically increasing equivalent diameters, (2) grains that first grow and then begin to shrink, (3) grains with almost constant diameters, and (4) grains that decrease in size. Furthermore, an oscillation <span style=\"color:red\">grain-growth</span> in the present mesoscale cellular automation simulations. This Simulated <span style=\"color:red\">growth</span> behavior is observed individual <span style=\"color:red\">grain-growth</span> behavior has not been reported in the literature.","authors":[],"categoryName":"|","doi":"","fpage":"119","id":"6b232b2b-c681-4f1d-9bd9-b2ef6c9a8d73","issue":"1","journal":{"abbrevTitle":"MAMTBMAMPS","id":"1e3b53b7-9441-4ffb-b571-357d5a6a4f9b","issnPpub":"1073-5615","publisherId":"MAMTBMAMPS","title":"Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science"},"keywords":[{"id":"acf0324f-984c-4a13-90a6-a42fc48c743c","keyword":"vertex dynamics simulation;computer-simulation;2 dimensions;solidification;kinetics;recrystallization;boundary;alloys","originalKeyword":"vertex dynamics simulation;computer-simulation;2 dimensions;solidification;kinetics;recrystallization;boundary;alloys"}],"language":"en","publisherId":"1073-5615_2006_1_1","title":"A mesoscale cellular automaton model for curvature-driven <span style=\"color:red\">grain</span> <span style=\"color:red\">growth</span>","volume":"37","year":"2006"}],"totalpage":550,"totalrecord":5495}