研究了Waspaloy合金在标准热处理状态下,700℃长期时效过程中的组织和力学性能变化.结果表明,长期时效过程中Waspaloy合金析出相主要为MC型碳化物,M23C6型碳化物和γ'相,时效过程中并未发现有害TCP相.M23C6型碳化物在晶界呈链状分布,长期时效过程中其大小、分布基本不变,稳定性良好;γ'相在时效100 h后充分析出,尺寸随时效时间延长而长大,γ '粗化规律符合L-S-W理论,5000 h时效后γ'相形貌仍然为球形.时效100 h合金强度有小幅上升,随后随时效时间延长合金强度变化不大.
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