Failure Analysis on the Delayed Fracture of 0Cr17Ni4Cu4Nb Steel Forging
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摘要: 通过化学分析、力学性能检测、表面残余应力检测、金相检验和断口分析的方法, 分析了0Cr17Ni4Cu4Nb钢锻件开裂的原因, 结果显示, 该锻件的开裂是由于回火不足引起的应力腐蚀开裂。Abstract: The cause of delayed fracture of 0Cr17Ni4Cu4Nb steel forging was researched through chemical composition analysis, mechanical property testing, residual stress testing, metallographical examination and fractographic analysis in this paper.The results showed that the cracking of the forging was stress corrosion delayed fracture resulted from improper tempering.
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Key words:
- Forging /
- Failure analysis /
- Stress corrosion cracking
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