在Gleeble-3800热模拟试验机上对9310钢进行了900～1200℃温度范围内的高温轴向压缩试验。基于动态材料模型理论(DMM)，在Prasad和Murthy 2种流变失稳准则下建立了9310钢的热加工图，并结合变形过程中的显微组织进行了热加工参数优化的分析。结果表明，本试验条件下，9310钢热变形在Prasad和Murthy流变失稳准则下的稳定性函数ξ(ε·)均大于0；在变形条件为950～1050℃，0.01～0.1 s-1时具有最佳的热加工性能，此区域内功率耗散率值均大于32%；能量耗散功率恒定时，变形温度对动态再结晶晶粒尺寸起主导作用，变形温度恒定时，高应变速率下的动态再结晶晶粒更加细小均匀。
Hot compression tests of 9310 steel were conducted on a Gleeble-3800 thermal simulating tester at the temper-ature range of 900-1 200℃. Based on the theory of dynamic material model (DMM), the processing map of 9310 steel was established under flow instability criteria of Prasad and Murthy, and thermal processing parameters were analyzed con-sidering with microstructures during deformation. The results indicate that the stability function ξ(ε· ) is greater than 0 un-der the present deformation conditions;deformation conditions of 950-1 050℃with 0.01-0.1 s-1 would be the best, and the rate of power dissipation in this region is greater than 32%;when the rate of power dissipation is constant, the deforma-tion temperature will play a dominant role on the dynamic recrystallization grains, meanwhile, when the deformation tem-perature is constant, the greater strain rate could incite finer dynamically recrystallized grains.
参考文献
| [1] | 黄有林,王建波,凌学士,张喜燕,栾佰峰,刘庆,黄光杰.热加工图理论的研究进展[J].材料导报,2008(z3):173-176. |
| [2] | Frost H J;Ashby M F.Deformation Mechanism Maps：The Plasticity and Creep of Metals and Ceramics[M].London:Per-gamon,1982 |
| [3] | Raj R .Development of a Processing Map for Use in Warm Forming and Hot Forming Processes[J].Metall Trans A,1981,12:1089. |
| [4] | 周军,李中奎,张建军,田锋.基于Matlab的热加工图的数值构造方法[J].稀有金属,2007(z1):49-52. |
| [5] | 曾卫东,周义刚,周军,俞汉清,张学敏,徐斌.加工图理论研究进展[J].稀有金属材料与工程,2006(05):673-677. |
| [6] | Prasad YVRK;Gegel H L;Doraivelu S M et al.Modeling of Dynamic Material Behavior in Hot Deformation:Forging of Ti-6242[J].Metall Trans,1984,15A:1883. |
| [7] | Gegel H L;Malas J C;Doraivelu S M.Modelling Tech-niques Used in Forging Process Design[M].Metal Park：ASM International,1988 |
| [8] | 廖慧敏,熊守权,曾明,龙思远.AZ81E镁合金的高温流变应力模型及热加工图研究[J].西华大学学报（自然科学版）,2013(03):10-14. |
| [9] | 杨春晖,王举,李楠.Ti-6Al-4V合金高温变形热加工图的建立与分析[J].计量与测试技术,2013(03):14-15,18. |
| [10] | 周舸,韩寅奔,曲敬龙,丁桦.U720Li镍基高温合金不同失稳判据的热加工图[J].东北大学学报：自然科学版,2012(05):702-706. |
| [11] | 文智,易丹青,王斌,张艳可.Al-6Mg-0.4Mn-0.2Sc铝合金的高温变形行为及热加工图[J].中南大学学报（自然科学版）,2013(03):914-920. |
| [12] | Prasad YVRK;Rao KP .Processing maps and rate controlling mechanisms of hot deformation of electrolytic tough pitch copper in the temperature range 300-950 degrees C[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2005(1/2):141-150. |
| [13] | Baofeng Guo;Haipeng Ji;Xingang Liu;Lu Gao;Rongmei Dong;Miao Jin;Qinghua Zhang .Research on Flow Stress During Hot Deformation Process and Processing Map for 316LN Austenitic Stainless Steel[J].Journal of Materials Engineering and Performance,2012(7):1455-1461. |
| [14] | M. Rajamuthamilselvan;S. Ramanathan .Development of Processing Map for 7075 Al/20% SiC_p Composite[J].Journal of Materials Engineering and Performance,2012(2):191-196. |
| [15] | Zhao, Z.;Guo, H.;Yao, Z..The deformation instability and stability analysis of Ti-17 powder compact during thermo-mechanical processing[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2012:193-199. |
| [16] | 厉勇,王春旭,刘宪民,田志凌,傅万堂.Fe-14Co-10Ni合金的高温塑性变形及热加工图[J].材料热处理学报,2009(06):84-88. |
| [17] | Y.V.R.K. PRASAD .Author's Reply: Dynamic Materials Model: Basis and Principles[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,1996(1):235-236. |
| [18] | 周凤云,李熙章.高强度渗碳钢制构件的断裂分析[J].理化检验-物理分册,2003(04):206-209. |
| [19] | 吴秋平,王春旭,刘宪民,厉勇.回火温度对9310钢力学性能及组织的影响[J].热加工工艺,2012(06):179-180,183. |
| [20] | 黄顺喆,厉勇,王春旭,刘宪民.9310钢的奥氏体晶粒长大规律研究[J].热加工工艺,2010(18):31-33. |
| [21] | 厉勇,王春旭,刘宪民,田志凌,许广鹏,赵肃武.SAE9310钢奥氏体的冷却转变行为[J].机械工程材料,2010(05):12-15. |
| [22] | 鲁世强,李鑫,王克鲁,董显娟,李臻熙,曹春晓.基于动态材料模型的材料热加工工艺优化方法[J].中国有色金属学报,2007(06):890-896. |
| [23] | 鞠泉,李殿国,刘国权.15Cr-25Ni-Fe基合金高温塑性变形行为的加工图[J].金属学报,2006(02):218-224. |
| [24] | Kalyan Kumar AKS .Criteria for Predicting Metallurgical Insta-bilities in Processing Maps[D].Bangalore:Indian Institute of Science,1987. |
| [25] | Ziegler H.Progress in Solid Mechanics[M].New York：Wiley Press,1963 |
| [26] | Chakravart y J K;Kapoor R;Sarkar A et al.Processing Map of Hot Working of Alpha-Zirconium[J].Metal Trans A,1991,22:829. |
| [27] | Murty SVSN.;Rao BN.;Kashyap BP. .Development and validation of a processing map for zirconium alloys[J].Modelling and simulation in materials science and engineering,2002(5):503-520. |
| [28] | 王蕊宁,奚正平,赵永庆,戚运连,杜宇.Zr-4合金的热变形和加工图[J].稀有金属材料与工程,2007(05):808-812. |
| [29] | Ramanathan S;Karthikeyan R;Ganasen G .Development of Pro-cessing Maps for 2124Al/SiCp Composites[J].Mater Sci Eng A,2006,441:321. |
| [30] | Padmavardhani D;Prasad Y V R K .Characterization of Hot De-formation Behavior of Brasses Using Processing Maps:Part I. a Brass[J].Metall Trans:A,1991,22:2985. |
| [31] | 王蕊宁,奚正平,赵永庆,戚运连,杜宇.Ti53311S合金高温塑性变形行为及加工图[J].稀有金属材料与工程,2008(01):10-13. |
| [32] | 曾卫东,徐斌,何德华,梁晓波,李世琼,张建伟,周义刚.应用加工图理论研究Ti2AlNb基合金的高温变形特性[J].稀有金属材料与工程,2007(04):592-596. |
| [33] | 周军,曾卫东,舒滢,周义刚.应用热加工图研究TC17合金片状组织球化规律[J].稀有金属材料与工程,2006(02):265-269. |
| [34] | Seshacharyulu T;Medeiros S C;Frazier W G et al.Unstable Flow During Supratransus Working of Ti-6Al-4V[J].Mater Lett,2001,47:133. |
| [35] | Ravichandran N;Prasad;YVRK .Dynamic Recrystallization During Hot Deformation of Aluminum:A Study Using Process-ing Maps[J].Metall Trans:A,1991,22:2339. |
| [36] | Venugopal S;Mannan S L;Prasad YVRK .Processing Map for Cold and Hot Working of Stainless Steel Type AISI 304L[J].Mater Lett,1992,15:79. |
| [37] | Venugopal S;Mannan S L;Prasad YVRK .Influence of Tem-perature and Strain Rate on Tensile Properties of 15Cr-2.2Mo-15Ni-Ti Modified Austenitic Stainless Steel[J].Mater Sci Techn,1993,9:1021. |
| [38] | Murty S.V. S. N.;Rao B.N. .Instability criteria for hot deformation of materials[J].International Materials Reviews,2000(1):15-26. |
| [39] | Gegel H L.Synthesis of Atomistics and Continuum Modeling to Describe Microstructure：Computer Simulation in Material Sci-ence[M].Metal Park:ASM International,1987 |
| [40] | Malas J C;Seetharaman V .Using Material Behavior Models to Develop Process Control Strategies[J].Journal of the Minerals,1992,44(06):8. |
| [41] | Semiatin S L;Jonas J J.Formability and Workability of Metals:Plastic Instability and Flow Localization[M].Metal Park:ASM International,1984 |
| [42] | Ravichandran N;Prasad YVRK .Influence of Oxygen on Dy-namic Recrystallization During Hot Working of Polycrystalline Copper[J].,1992,156(02):117. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%