Zr-Sn-Nb-Fe-Cr合金热变形行为  

Hot Deformation Behavior of Zr-Sn-Nb-Fe-Cr Alloy

作　　者：张建军[1] 李中奎[1] 周军[1] 田峰[1] 王文生[1] 石明华[1] 

机构地区：[1]西北有色金属研究院,陕西西安710016

出　　处：《原子能科学技术》2009年第4期350-354,共5页Atomic Energy Science and Technology

基　　金：国家自然科学基金资助项目(50571083)

摘　　要：应用Gleeble-1500热模拟机对Zr-Sn-Nb-Fe-Cr合金进行热压缩试验,研究该合金在600-980℃和应变速率0.001-50 s^-1条件下的热变形行为。根据材料动态模型,计算并分析该合金的加工图。利用加工图确定了热变形的流变失稳区,并获得了试验参数范围内两个区域热变形过程的如下最佳工艺参数：热加工温度600-630℃,应变速率0.001 s^-1;热加工温度高于980℃,应变速率1-10 s^-1。The hot deformation behaviors of Zr-Sn-Nb-Fe-Cr alloy in the thermal range of 600-980℃ and strain rate range of 0. 001-50 s^-1 were studied by using hot compressing test on a Gleeble-1500 simulator. The processing maps were calculated and analyzed according to the dynamic materials model. By using the processing maps the optimum processing parameters of hot deformation in this experiment can be attained as followings： The hot deformation temperature is 600-630 ℃, the strain rate is 0. 001 s^-1 ; And the hot deformation temperature is above 980℃, the strain rate is in the range of 1-10 s^-1. The instability zones of flow behavior can also be recognized by the maps.

关 键 词：Zr-Sn-Nb-Fe-Cr合金 热变形 加工图 

分 类 号：TG146.414[一般工业技术—材料科学与工程]