发动机压气机铝合金叶片的喷丸防护  

Shot Peening-paint Process of Aluminum Alloy Compressor Blades of Certain Engine

作　　者：马晓峰 

机构地区：[1]海军驻西安地区航空代表室,西安710021

出　　处：《中国表面工程》2011年第3期93-96,共4页China Surface Engineering

摘　　要：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。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 resistance of the blades is obviously improved.The stress state of the blades are also improved by treated with shot peening and paint process.The blades treated with optimum shot peening-paint routine are fitted in a trial run engine.After the trial running,there is no crack found on the blades.

关 键 词：压气机 铝合金叶片 应力腐蚀 喷丸处理 涂漆防护 

分 类 号：TG175.3[金属学及工艺—金属表面处理]