对第一批次的低成本粉末高温合金锻件低周疲劳试样断口进行分析表征,疲劳试验温度为650℃,包含应变幅0.8%及0.9%两组,分析内容包括断口形貌,裂纹微观扩展机制等
The low-cycle fatigue fracture of the first batch of low-cost powder superalloy forgings was analyzed. The fatigue test temperature was 650℃, including two groups of strain amplitude of 0.8% and 0.9%.The analysis contents included fracture morphology, crack micro-propagation mechanism and so on.