Hardness variations during aging process of deformed W-Ni-Fe ternary alloys with high nickel-to-iron ratios

查看全文 作　　者：[1]RonghuaLi;[2]JihuaHuang;[2]ShengYin;[2]JunZhao

机构地区：[1]SchoolofMechanical,EleOronicandControlEngineering,NorthernJiaotongUniversity,Beijing100044,China;[2]MaterialsScienceandEngineeringSchool,UniversityofScienceandTechnologyBeijing,Beijing100083,China

出　　处：《Journal of University of Science and Technology Beijing》索引2003年第10卷第4期,共3页

基　　金：National Natural Science Foundation of China (No.59971007) 摘　　要：The aging precipitation behavior of β phase in two kinds of alloys with 7/3 and 9/1 nickel-to-iron ratios during aging at 800℃ after deformation was studied. The results show that there are two different kinds of aging hardness variation mechanisms (the softening mechanism and the hardening mechanism) deciding the hardness variations of the alloys. When Ni/Fe is smaller than 8/2, there is only the softening mechanism which results from the decreasing of dislocation density and recovery or re-crystallization.And when Ni/Fe is greater than 8/2 besides the softening mechanism there is still the hardening mechanism that is induced by the precipitation of β phase. 关键词：钨镍铁三元合金老化过程硬度镍铁比钨重合金

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Hardness variations during aging process of deformed W-Ni-Fe ternary alloys with high nickel-to-iron ratios

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