提高Ti70中厚板塑韧性热加工工艺研究  

Study on Thermal Processing Technology for Improving the Plasticity and Toughness of Ti70 Medium Thick Plate

作　　者：李渤渤 郝晓博 刘茵琪 张强 李洋 LI Bobo;HAO Xiaobo;LIU Yinqi;ZHANG Qiang;LI Yang(Luoyang Sunrui Titanium Precision Casting Co.L td.,Luoyang 471023,China)

机构地区：[1]洛阳双瑞精铸钛业有限公司,河南洛阳471023

出　　处：《材料开发与应用》2020年第2期33-38,共6页Development and Application of Materials

基　　金：郑洛新自创区产业集群专项(181200212500)。

摘　　要：针对Ti70中厚板伸长率及冲击性能偏低的问题,系统研究了热加工工艺对Ti70中厚板性能的影响,并对热加工工艺进行改进.结果表明:与原来传统热加工工艺相比,通过增加轧制变形量,降低轧制温度,可显著提高板材伸长率和低温冲击性能.同时,此新工艺为其它α及近α钛合金塑韧性综合指标提升提供了崭新的工艺设计思路.To solve the problems of low elongation and impact property of Ti70 medium plate,influence of hot processing technology on the mechanical properties of Ti70 medium plate was systematically studied,and the processing technology improved.The results show that compared with the traditional hot processing technology,by increasing the rolling deformation and reducing the rolling temperature,the elongation and low temperature impact performance of Ti70 medium plate can be significantly improved.The new thermal processing technology can also provide a new process design idea for the improvement of the elongation and impact property of otherαand nearαtitanium alloys.

关 键 词：Ti70合金板 热加工工艺 冲击性能 伸长率 超低温轧制 

分 类 号：TG146.2[一般工业技术—材料科学与工程]