Effect of cooling rate on β→α transformation during quenching of a Zr-0.85Sn-0.4Nb-0.4Fe-0.1Cr-0.05Cu alloy

查看全文 作　　者：CHAI [1]LinJiang;LUAN [1]BaiFeng;CHEN [1]JianWei;ZHOU [2]Jun;LIU [1]Qing

机构地区：[1]College of Materials Science and Engineering,Chongqing University,Chongqing 400044,China;[2]Northwest Institute for Non-ferrous Metal Research,Xi'an 721014,China

出　　处：《Science China(Technological Sciences)》索引2012年第55卷第10期,共5页

基　　金：supported by the programs of New Century Excellent Talents in University (Grant No.NCET-08-0606);the Sharing Fund of Chongqing University's Large-scale Equipment;the Fundamental Research Funds for the Central Universities of China (Grant Nos. CDJZR10130008 and CDJXS10132201) 摘　　要：The effect of β→α cooling rate during quenching on a new Zr-Sn-Nb-Fe-Cr-Cu alloy is reported.The microstructure evolution is well characterized by electron channeling contrast(ECC) imaging and transmission electron microscopy(TEM) techniques.The results show that specimens cooled by water,liquid nitrogen,air and furnace from β-phase present martensitic,coarse basket-weave,parallel-plate and lenticular structure,respectively.Residual β phase is detected by performing electron diffraction and composition analysis in the furnace cooled specimen.Micro hardness values of specimens decrease while the width of α laths increase with the cooling rate decreasing.The preliminarily established quantitative relationship among the cooling rate,microstructure and mechanical properties will shed light on the microstructure control and property optimization. 关键词：冷却速度淬火过程铜合金 ZR 透射电子显微镜转化冷却速率结构控制

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Effect of cooling rate on β→α transformation during quenching of a Zr-0.85Sn-0.4Nb-0.4Fe-0.1Cr-0.05Cu alloy

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