【摘要】 采用金相检验、扫描电镜、超声探伤等方法,对2502Ni4WA钢的不同形态的裂纹进行分析,结果表明,裂纹均是由组织应力、热应力引起的。更多还原

【Abstract】 The different cracks of steel 25Cr2Ni4WA were analysed by metallography,SEM and ultrasonic inspection. The results show that the cracks were induced by structure stress and thermal stress.更多还原