FeCoNiCuSi x B1 - x 高熵合金力学性能的优化和高压强化机制

FeCoNiCuSi _x B_{1 -}_x 高熵合金力学性能的优化和高压强化机制

包方玄, 宫明龙, 刘恩瑞, 刘凤芳, 白静, 高秋志

Optimization of Mechanical Properties and High-pressure Strengthening Mechanism of FeCoNiCuSi _x B_{1 -}_x High Entropy Alloys

BAO Fangxuan, GONG Minglong, LIU Enrui, LIU Fengfang, BAI Jing, GAO Qiuzhi

表7 FeCoNiCuSi_0.5B_0.5高熵合金在不同压力下的弹性常数(C_ij, GPa)及其变化幅度(%)

Table 7 Elastic constants (C_ij, GPa) and their variation percentages (%) in FeCoNiCuSi_0.5B_0.5 high entropy alloy under different pressures

Pressure / GPa	$C_{11}$	Variation / %	$C_{12}$	Variation / %	$C_{44}$	Variation / %	$C_{11} - C_{12}$	$C_{11} + 2 C_{12}$
0	1200	0	589.2	0	229.7	0	610.8	2378.4
20	1309.3	9.11	657.3	11.56	261.9	14.02	652	2623.9
40	1429.4	19.12	739.2	25.46	293.9	27.95	690.2	2907.8
60	1528.9	27.41	804.8	36.59	324	41.05	724.1	3138.5
80	1647.1	37.26	889.5	50.97	353.4	53.85	757.6	3426.1
100	1742.2	45.18	952.8	61.71	381.9	66.26	789.4	3647.8