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| γ-TiAl基金属间化合物近γ组织强度的细观力学分析 | |
| 引用本文： | 郭富安,郑瑞廷,张永刚,杨军,V.Ji. γ-TiAl基金属间化合物近γ组织强度的细观力学分析[J]. 材料工程, 2001, 1(3): 16-19,22 |
| 作者姓名： | 郭富安 郑瑞廷 张永刚 杨军 V.Ji |
| 作者单位： | 1. 北京航空航天大学材料科学与工程系，北京 100083;LM3 ESA CNRS 8006, ENSAM, 151 Bd. de l'Hopital 75013 Paris France 2. 北京航空航天大学材料科学与工程系，北京 100083 3. 北京理工大学应用力学系，北京 100084 4. LM3 ESA CNRS 8006, ENSAM, 151 Bd. de l'Hopital 75013 Paris France |
| 摘 要： | 通过选用不同Al含量的γ-TiAl基金属间化合物及采用适当的热加工工艺及热处理工艺，获得了几中含有不同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，并对实验曲线及计算曲线的差异进行了分析。 |
| 关 键 词： | α2相 体积含量 细观力学模型 γ－钛铝基金属间合物 近γ组织 强度 |
| 文章编号： | 1001-4381(2001)03-0016-04 |
Micro-mechanics Analysis of Strength of Near γMicrostructure of TiAl-based Intermetallic Alloys |
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| GUO Fu an ,,YANG Jun ,ZHENG Rui ting ,ZHANG Yong gang ,V Ji. Micro-mechanics Analysis of Strength of Near γMicrostructure of TiAl-based Intermetallic Alloys[J]. Journal of Materials Engineering, 2001, 1(3): 16-19,22 | |
| Authors: | GUO Fu an YANG Jun ZHENG Rui ting ZHANG Yong gang V Ji |
| Affiliation: | GUO Fu an 1,3,YANG Jun 2,ZHENG Rui ting 1,ZHANG Yong gang 1,V Ji 3 |
| Abstract: | In order to study the influence of the volume fraction of α2phase on the mechanical properties of TiAl-based intermetallic alloys, room-temperatur e tensile test was carried out on a series of near γ TiAl alloys with differen t vo lume fractions of α2 phase due to different Al contents, then a micro-mechan ics model was employed to analysis the mechanical properties of these alloys. T h e results show that the volume fraction of α2 phase has a strong effect on th e mechanical properties of near γ alloys, and the calculated results are in goo d agreement with the experiment, the difference of calculated and experimetal re sults was also discussed |
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