钛合金薄壁件选区激光熔化应力演变的数值模拟
柯林达1,殷杰2(),朱海红2,彭刚勇2,孙京丽1,陈昌棚2,王国庆3,李中权1,曾晓雁2
Numerical Simulation of Stress Evolution of Thin-Wall Titanium Parts Fabricated by Selective Laser Melting
KE Linda1,YIN Jie2(),ZHU Haihong2,PENG Gangyong2,SUN Jingli1,CHEN Changpeng2,WANG Guoqing3,LI Zhongquan1,ZENG Xiaoyan2

图1. Ti-6Al-4V合金热导率和体积焓随温度的变化规律

Fig.1. Temperature dependency of thermal conductivity (a) and volumetric enthalpy (b) of Ti-6Al-4V alloy(Tliquid—liquidus temperature, Tαβ—temperature of transition from α phase to β phase of Ti-6Al-4V alloy)