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| 1 | γ-TiAl基金属间化合物近γ组织强度的细观力学分析显示文摘通过选用不同 Al含量的 γ- Ti Al基金属间化合物及采用适当的热加工工艺及热处理工艺 ,获得了几种含有不同α2 体积含量的近 γ组织 ,采用室温拉伸试验研究 α2 相的含量对合金力学性能的影响。然后利用细观力学的方法分析了含有不同 α2 体积含量的合金的强度随外载的变化关系。结果表明 ,α2 相的体积含量对合金的强度有较大的影响 ,所选用细观力学模型的计算结果和试验结果吻合较好 。 | 郭富安 杨军 郑瑞廷 张永刚 V.Ji | 2001 | 材料工程2001，29，3： | 2 |
| 2 | Unveiling the Residual Stresses,Local Micromechanical Properties and Crystallographic Texture in a Ti-6Al-4V Weld Joint显示文摘In this work,the micromechanical properties,crystallographic texture,welding residual stresses and their evolution after plastic strain were investigated in a Ti-6Al-4V alloy tungsten inert gas weld joint.It was found that the welding process affected the Young modulus and microhardness values in bothαandβphases in the different regions of the weld joint.The highest microhardness and Young modulus values of a phase were recorded in the heat-affected zone,whereas the highest values of these characteristics for theβphase were found in the fusion zone(FZ).The change in the micro mechanical properties was accompanied by a change in the crystallographic texture components of the dominant a phase from(0001)<10-10>and(11-20)<10-10>components in the base material to(10-10)<11-20>and(11-20)<3-302>components in the FZ.The introduction of tensile testing resulted in a continuous stress relaxation and improved the weld joint performances. | B.Mehdi R.Badji V.Ji B.Alili D.Bradai W.Bedjaoui F.Deschaux-Beaume F.Brisset | 2021 | Acta Metallurgica Sinica(English Letters)2021，34，7： | 1 |
| 3 | TiC颗粒增强钛基复合材料的内应力(英文)显示文摘利用X射线衍射技术测试了TiC颗粒增强钛基复合材料Ti-6Al-4V+7%TiC(质量分数,下同)(T64), Ti-3Al-2.5V+7%TiC (T32)和Ti-6Al-2.5Sn-4Zr-0.5Mo-1Nb-0.45Si+3%TiC(T650) 的内应力。发现该复合材料在800℃左右存在一个应力性质转变点,即在800℃以上处理,钛基体感生残余拉应力,增强TiC颗粒感生残余压应力;在800℃以下处理,应力性质相反。并且内应力随处理温度升高而增加,由Eshelby 模型得出,该转变点和钛合金基体的相变点有关。 | 毛小南 周廉 周义刚 V.Ji 张鹏省 于兰兰 | 2004 | 稀有金属材料与工程2004，33，4： | 0 |
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