轧制温度对TC8M-1钛合金棒材组织和力学性能的影响  

Effect of Rolling Temperatures on Microstructures and Mechanical Properties of TC8M-1 Titanium Alloy Bars

作　　者：蒋纪新 张伟[1] 孙虎代 魏高艳[1] 陶海林[1] JIANG Ji-xin;ZHANG Wei;SUN Hu-dai;WEI Gao-yan;TAO Hai-lin(Baoji Titanium Industry Co.,Ltd.,Baoji 721014,China)

机构地区：[1]宝鸡钛业股份有限公司,陕西宝鸡721014

出　　处：《世界有色金属》2021年第20期6-7,共2页World Nonferrous Metals

摘　　要：研究了两种轧制温度对TC8M-1钛合金Ф20mm棒材组织和力学性能的影响。实验采用同状态的原始棒坯分别在T_(β)-60℃和T_(β)+20℃进行同等变形量的轧制。试验结果表明:T_(β)-60℃和T_(β)+20℃轧制的TC8M-1钛合金棒材的显微组织分别为等轴组织和网篮组织;网篮组织室温拉伸强度、冲击韧性均略高于等轴组织,但其塑性较差。The effects of two rolling temperature on the microstructures and mechanical properties of TC8M-1 alloyФ20mm bars were studied.Experimental raw material having the same amount of rolling deformation,but rolling by T_(β)-60℃and T_(β)+20℃.The results showed that the microstructure of TC8M-1 titanium bars rolled at T_(β)-60℃and T_(β)+20℃were equiaxed and basket structures respectively.The room temperature tensile strength and impact toughness with basketweave microstructure were slightly higher than equiaxed microstructure,but the plastic of basketweave microstructure is relatively poor.

关 键 词：TC8M-1钛合金 显微组织 拉伸性能 冲击韧性 

分 类 号：TF841.4[冶金工程—有色金属冶金]