Ti-2Al-2.5Zr单道次皮尔格轧制过程中显微组织和织构的演化(英文)  

Evolution of Microstructure and Microtexture in Ti-2A1-2.5Zr During One Pass Cold Pilgering

作　　者：吴军 王理[1] 刘肖[1] 廖京京 王辉[1] Wu Jun;Wang Li;Liu Xiao;Liao Jingjing;Wang Hui(Science and Technology on Reactor Fuel and Materials Laboratory,Nuclear Power Institute of China,Chengdu 610213,China)

机构地区：[1]中国核动力研究设计院反应堆燃料及材料重点实验室,四川成都610213

出　　处：《稀有金属材料与工程》2022年第4期1145-1151,共7页Rare Metal Materials and Engineering

基　　金：Sichuan Science and Technology Program(2019ZDZX0001)。

摘　　要：研究了单道次皮尔格轧制过程中Ti-2Al-2.5Zr材料的变形行为和织构的演变规律。结果表明,在轧制过程中,■孪晶和柱面滑移是最容易被激活的2种变形模式,■孪晶的产生使得晶粒在轴向上的位向从■转向■。并且,在不同瞬时Q值和等效应变量下,滑移和孪生导致{0001}极图中最大极密度点在切向上发生变化。The evolution of deformation behavior and microtexture in one pass cold Pilgering process was investigated.Results show that during cold Pilgering,the■tensile twin and prismatic slip are the two modes that are most easily activated.The activated■tensile twins cause the grain orientation changes in axial directions,which changes from■to■.The maximum intensity point of{0001}pole figure changes along the TD,which is attributed to twinning and slip under different transient Q-value and equivalent plastic strain.

关 键 词：钛合金 织构 皮尔格冷轧 孪晶 变形模式 

分 类 号：TG339[金属学及工艺—金属压力加工]