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
),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
),DONG Jianxin,ZHANG Maicang,YAO Zhihao,YANG Jing
图4. GH4738合金应力松弛实验后TEM明场像
Fig.4. TEM bright field images of GH4738 alloy after stress relaxation test(a, b) interaction between γ' particles and dislocations after stress relaxation test at 600 ℃, 510 MPa (a) and 700 ℃, 510 MPa (b)(c, d) stacking fault in γ' particles (c) and subgrain in matrix (d) after stress relaxation test at 700 ℃, 510 MPa
