服役条件下镍基高温合金应力松弛微观机制
江河(),董建新,张麦仓,姚志浩,杨静
Stress Relaxation Mechanism for Typical Nickel-Based Superalloys Under Service Condition
JIANG He(),DONG Jianxin,ZHANG Maicang,YAO Zhihao,YANG Jing

图8. GH4169合金在650 ℃不同初应力条件下应力松弛实验后TEM明场像

Fig.8. TEM bright field images of GH4169 alloy after stress relaxation test at 650 ℃ with different initial stresses(a) 260 MPa (b) 380 MPa (c, d) 510 MPa