温度对625镍基高温合金焊接接头低周疲劳行为的影响

王媛媛, 陈立佳, 王宝森

INFLUENCE OF TEMPERATURE ON LOW-CYCLE FATIGUE BEHAVIOR OF INCONEL 625 NICKEL-BASED SUPERALLOY WELDING JOINT

WANG Yuanyuan, CHEN Lijia, WANG Baosen

表1 Inconel 625合金焊接接头在不同温度下的应变疲劳参数

Table 1 Strain fatigue parameters of Inconel 625 alloy welding joint at different temperatures

Temperature / ℃	$\begin{matrix} {\overset{'}{ε}}_{f} \end{matrix}$ / %	c	$\begin{matrix} {\overset{'}{σ}}_{f} \end{matrix}$ / MPa	b	K' / MPa	n'
25	105.2	-0.699	1891.1	-1.148	8124.6	0.487
760	505.6	-0.105	1332.6	-0.143	972.6	0.106