淬火速率对7136铝合金应力腐蚀开裂敏感性的影响

马志民, 邓运来, 刘佳, 刘胜胆, 刘洪雷

Effect of Quenching Rate on Stress Corrosion Cracking Susceptibility of 7136 Aluminum Alloy

MA Zhimin, DENG Yunlai, LIU Jia, LIU Shengdan, LIU Honglei

图4 不同淬火速率下7136铝合金试样的强度、伸长率及断裂时间及相应的下降率(KR、KA、Kt)

Fig.4 The strength, elongation, and fracture time of 7136 aluminum alloy samples under different quenching rates, and corresponding reduction rate (a) strength (RmOil is the strength in silicone oil, and RmNaCl is the strength in NaCl solution) and strength reduction rate (KR) (b) elongation (AOil is the elongation in silicone oil, and ANaCl is the elongation in NaCl solution) and elongation reduction rate (KA) (c) fracture time (tOil is the fracture time in silicone oil, and tNaCl is the fracture time in NaCl solution) and fracture time reduction rate (Kt)