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VISCO-PLASTIC CONSTITUTIVE MODEL FOR UNIAXIAL AND MULTIAXIAL RATCHETING AT ELEVATED TEMPERATURES

G.Z.Kang , Q.Gao , J.Zhang

金属学报(英文版)

Based on the experimental results of the ratcheting for SS304 stainless steel, a new visco-plastic cyclic constitutive model was established to describe the uniaxial and multiaxial ratcheting of the material at room and elevated temperatures within the framework of unified visco-plasticity. In the m...

关键词: constitutive model , null , null

Crystal structure and photoluminescence of Tb3+ doped Y3GaO6

Journal of Alloys and Compounds

A solid solution with formula (Y1-xTbx)(3)GaO6 (x = 0-0.5) was prepared by solid-state reaction method. Powder X-ray diffraction (XRD) shows that Y3GaO6 is isostructural to Gd3GaO6 (Cmc2(1)), and the lattice...

关键词: Y3GaO6;crystal structure;Tb3+ doped;photoluminescence;luminescence properties;dependence;y3al5o12;phosphor;ions;ce3+;tb-3;uv

A systematic study on crystal structure and magnetic properties of Ln(3)GaO(6) (Ln = Nd, Sm, Eu, Gd, Tb, Dy, Ho and Er)

Journal of Solid State Chemistry

The crystal structures of a series of compounds with the composition Ln(3)GaO(6)(Ln = Nd, Sm, Eu, Gd, Tb, Dy, Ho and Er) synthesized by solid-state reaction at 1400degreesC are investigated. X-ray diffraction shows that Ln3GaO6 has a non-...

关键词: Ln(3)GaO(6);crystal structure;Rietveld refinement;X-ray diffraction;garnets

Optical spectra of Ln(3+)(Nd3+, Sm3+, Dy3+, Ho3+, Er3+)-doped Y3GaO6

Journal of Luminescence

Ln(3+) (Ln = Nd, Sm, Eu, Gd, Dy, Ho, Er)-doped Y3GaO6 compounds were prepared by solid-state reaction, and their optical spectra such as absorption, photoluminescence, excitation and time-resolved spectra have been measured for Ln Nd, Sm, Dy, Ho, Er. X-ray powder diffr...

关键词: crystal-field;absorption-spectra;luminescence;y3ga5o12;glasses;garnet;y2o3;ions;laf3;tb3

Optical properties of (Y1-xTmx)(3)GaO6 and subsolidus phase relation of Y2O3-Ga2O3-Tm2O3

Journal of Solid State Chemistry

A serial of samples in Y2O3-Ga2O3-Tm2O3 pseudo-ternary system are prepared by solid-state chemical reaction method. The range of solid solution in (Y1-xTmx)(3)GaO6 is 0 < x < 0.384. Powder X-ray diffraction shows that the compounds crystallize in Gd3

关键词: Tm3+ -doped Y3GaO6;Y2O3-Ga2O3-Tm2O3 system;(Y1-xTmx)(3)Ga5O12 solid;solution;luminescence;crystal-structure;luminescence;phosphor;cations;ions;tb3

不同温度下碳源对AOA-SBR工艺PAO与GAO竞争释磷的影响

张兰河 , 李德生 , 王旭明 , 张海丰

硅酸盐通报

为了提高生物除磷效率,研究采用AOA-SBR工艺进行了长期连续除磷实验,考察不同温度下碳源(乙酸钠、丙酸钠、葡萄糖)对PAO与GAO竞争的影响.结果表明:当温度由10℃升高至25℃时,利用丙酸钠作为碳源时,污泥含磷量与含糖量分别从7.2%...

关键词: 温度 , 碳源 , SBR , PAO与GAO

321-Q370q复合板焊接冷裂纹敏感性试验研究

王小华 , 辛宝 , 撒世勇 , 吴伦发

材料开发与应用 doi:10.3969/j.issn.1003-1545.2008.06.015

Q370q钢是武汉钢铁公司和中铁大桥工程局共同研究开发的新型桥梁用钢.为了达到永久性防腐蚀的目的,采用爆炸焊接法制成321-Q370q复合板.本文研究了321-

关键词: 321-0370q复合板 , 冷裂纹敏感性 , 试验

桥梁钢Q345q疤状缺陷分析

余宏伟,王世森,王孝东,洪君

物理测试

针对鄂钢轧制的部分宽厚板表面出现结疤现象,应用金相显微镜、扫描电镜和能谱分析仪对Q345q热轧态钢板表面疤状物形态和成分进行观察,对形成原因进行分析并提出改进措施。结果表明:疤状缺陷为块状的非金属夹杂/渣,并在钢板表面形成凹坑,其成分为含...

关键词: Q345q , scar defect , plate , non-metallic inclusions , non-metal lards

桥梁钢Q345q疤状缺陷分析

余宏伟 , 王世森 , 王孝东 , 洪君

物理测试

针对鄂钢轧制的部分宽厚板表面出现结疤现象,应用金相显微镜、扫描电镜和能谱分析仪对Q345q热轧态钢板表面疤状物形态和成分进行观察,对形成原因进行分析并提出改进措施。结果表明:疤状缺陷为块状的非金属夹杂/渣,并在钢板表面形成凹坑,其成分为含...

关键词: Q345q , 疤状缺陷 , 钢板 , 非金属夹杂 , 非金属夹渣

Effect of Thermomechanical Controlled Processing Parameters on the Microstructure and Properties of Q460q Steel

WANG Lei , GAO Cai-ru

钢铁研究学报(英文版)

Thermal mechanical control processing (TMCP), the combination of controlled rolling and controlled cooling, provides a powerful means of developing high-strength low alloy (HSLA) steels by intensive microstructural control. In the present investigation, the effects of TMCP parameters, consisting of ...

关键词: ;TMCP;mechanical properties;M/A constituent;Q460q steel

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