深冷循环对SiC/Al复合材料宏微观残余应力的影响

谷黎明, 冯效铭, 于朝, 张峻凡, 刘振宇, 何伦华, 卢怀乐, 李小虎, 王晨, 张晓东, 肖伯律, 马宗义

Impact of Cryogenic Cycling on the Macro and Microscopic Residual Stress in SiC/Al Composites

GU Liming, FENG Xiaoming, YU Zhao, ZHANG Junfan, LIU Zhenyu, HE Lunhua, LU Huaile, LI Xiaohu, WANG Chen, ZHANG Xiaodong, XIAO Bolv, MA Zongyi

表1 数值模拟中使用的材料参数

Table 1 Material parameters used in numerical simulations

Phase Parameter Value Unit Al Conductivity 174.57[30] mJ·(s·mm·oC)-1 Young's modulus 68.00 GPa Poisson's ratio 0.33 - Thermal expansion coefficient 2.30 × 10-5 K-1 Yield stress 200 MPa SiC Conductivity 120.00 mJ·(s·mm·℃)-1 Young's modulus 415.00 GPa Poisson's ratio 0.17 -