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1. 应力松弛实验样品和典型应力松弛曲线
Fig.1. Specimen for stress relaxation test (a) and typical stress relaxation curve (b) (σ—stress, σ0—initial stress, σ'0—threshold stress to divide first and second stage, σr—stress relaxation limit, t—time. In stage I, the stress decreases rapidly. The stress decreases more and more slowly to a stable value in stage II)
