发动机压气机铝合金叶片的喷丸防护

通过对发动机压气机铝合金叶片断裂故障进行分析,提出采取喷丸强化+涂漆工艺提高叶片应力腐蚀防护能力。研究了喷丸工艺和涂漆工艺对残余压应力的分布、松弛以及叶片的耐腐蚀性能和耐风砂性能的等的影响规律。结果表明,叶片经喷丸和涂漆处理后,耐腐蚀性能和耐风砂性能显著提高,同时叶片的应力状态得到了有效改善。对防护工艺优化后的叶片进行装机试车考核,考核通过后在叶片上未发现裂纹。

Shot Peeningpaint Process of Aluminum Alloy Compressor Blades of Certain Engine

Analyzing the rupture failure of compressor aluminum alloy blades of certain engine,a process of shot peening-paint has been brought forward to improve the stress corrosion resistance of the blades.The distribution and relaxation of residual stress influenced by the shot peening treatment and paint process have been studied.The corrosion and blast resistance of the blades treated with shot peening and paint process have also been investigated.The results show that the corrosion resistance and blast resistan...