TC16钛合金板材冷轧工艺及组织性能研究  

Study on Cold Rolling Technology,Microstructures and Mechanical Properties of TC16 Titanium Alloy Sheets

作　　者：刘志强 张青来[1] 韩伟东 柏秋生 Liu Zhiqiang;Zhang Qinglai;Han Weidong;Bai Qiusheng(School of Materials Science and Engineering,Jiangsu University,Zhenjiang 212013,China;Baoji Boxin Metal Materials Co.,Ltd.,Baoji 721013,China)

机构地区：[1]江苏大学材料科学与工程学院,江苏镇江212013 [2]宝鸡市博信金属材料有限公司,陕西宝鸡721013

出　　处：《钛工业进展》2021年第1期20-24,共5页Titanium Industry Progress

摘　　要：进行了TC16钛合金板材多道次冷轧试制,利用光学显微镜、扫描电镜和X射线衍射等手段研究了变形量对冷轧板材微观组织与力学性能的影响。结果表明:α+β两相TC16钛合金板材冷轧加工是可行的,其极限冷变形量达到79%,冷轧板材表面无裂纹。大幅度冷轧变形后,TC16钛合金组织为分布均匀的纤维状结构,且存在极少量未充分变形的α晶粒,并伴有应变诱导的α″马氏体相产生;抗拉强度和显微硬度均得到较大程度的提高,发生明显的冷形变强化。The multi-pass cold-rolled tests of TC16 titanium alloy sheets were produced.The effect of deformation on microstructures and mechanical properties of cold-rolled sheets were studied by optical microscope,scanning electron microscope and X-ray diffraction.The results show that the cold rolling ofα+βtwo-phase TC16 titanium alloy sheets is feasible,and the limit cold deformation can reach 79%without any cracks on the surface.After large-scale cold rolling deformation,the TC16 titanium alloy microstructure becomes a uniformly distributed fibrous structure,and they are few incompletely deformedαgrains,accompanied by strain-inducedα″martensitic phase.Meanwhile,the improvement of tensile strength and microhardness,and obvious cold deformation strengthening is obtained.

关 键 词：TC16钛合金 冷轧 微观组织 力学性能 

分 类 号：TG337.6[金属学及工艺—金属压力加工]