TC17钛合金盘件的β锻造工艺优化  

Optimization ofβForging Process for TC17 Titanium Alloy Disk

作　　者：李昌永 魏鑫 赵兴东 王丹 曾卫东[2] 徐建伟[2] Li Changyong;Wei Xin;Zhao Xingdong;Wang Dan;Zeng Weidong;Xu Jianwei(AECC Shenyang Liming Aero-engine Co.,Ltd.,Shenyang 110043,China;State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,Xi’an 710072,China)

机构地区：[1]中国航发沈阳黎明航空发动机有限责任公司,辽宁沈阳110043 [2]西北工业大学凝固技术国家重点实验室,陕西西安710072

出　　处：《钛工业进展》2021年第3期1-5,共5页Titanium Industry Progress

基　　金：国家自然科学基金项目(51905436)。

摘　　要：针对某TC17钛合金盘件生产中的异常组织问题,开展盘件锻造工艺优化研究。结合有限元模拟技术,对预制坯结构和锻造工艺参数进行了优化,通过对比分析工艺优化前后TC17钛合金盘锻件的高低倍组织和力学性能发现,采用优化工艺可消除原有工艺条件下锻件中的高应变带和低应变区,大幅改善了盘锻件的变形均匀性,进而提高了TC17钛合金盘锻件组织均匀性,获得了较为理想的网篮组织,同时进一步改善了材料的力学性能。In order to solve the abnormal microstructure problems in the production of TC17 alloy disk forging,the forging process optimization of TC17 titanium alloy was studied.The preform structure and beta forging parameters were optimized through numerical modeling of forming processes.The macrostructure and microstructure and mechanical properties of TC17 alloy disk forgings before and after the process optimization were analyzed by comparative method.The results show that the high strain band and low strain area in original forgings can be eliminated by adopting optimized scheme,and the deformation uniformity and microstructural uniformity of the disk forgings can thus be improved significantly.An ideal basket-waved microstructure is obtained and its mechanical properties are superior to those in original conditions.

关 键 词：TC17钛合金 数值模拟 组织均匀性 力学性能 

分 类 号：TG319[金属学及工艺—金属压力加工] TG146.23[一般工业技术—材料科学与工程]