TC21钛合金大规格棒材镦饼工艺研究  

Study of Upsetting Process of Large-Size TC21 Titanium Alloy Bar

作　　者：乔恩利[1] 冯永琦[1] 李渭清[1] 杨慧丽[1] 岳旭[1] 

机构地区：[1]宝钛集团有限公司锻造厂,陕西宝鸡721014

出　　处：《有色金属加工》2017年第1期33-35,共3页Nonferrous Metals Processing

摘　　要：通过对TC21钛合金大规格棒材采用3种不同镦饼方案,经相同工艺热处理后,所得组织、力学性能进行对比分析,结果表明,3种镦饼方案所得显微组织分别为典型的网篮组织、等轴组织和魏氏组织。对3种方案所获得材料分别取样做力学性能对比测试发现,方案三所获得的断裂韧性最好,方案二所获得的强度指标最高,方案一和方案二所获得的塑性指标较好。Based on three different upsetting schemes, the paper presented comparative analysis of microstructure and mechanical properties of large-size TC21 titanium alloy bar after the same heat treatment regime; the results showed that typical basket-weave,equiaxed and Widmannstatten structures were obtained with the three schemes,respectively. Comparison of mechanical properties was carried out on the samplings which were taken from materials generated by the three schemes; the results showed that Scheme 3 had the best fracture toughness,Scheme 2 the highest strength index,Scheme 1 and Scheme 3better plasticity index.

关 键 词：TC21钛合金 镦饼 工艺研究 

分 类 号：TG319[金属学及工艺—金属压力加工]