摘要
某飞机发动机静子叶片GH2132合金,其锻件在理化检测时多次发现屈服强度不合格。为查明原因,分析了成分、热处理、取样位置、锻压及补充时效对试样组织和性能的影响。找到了屈服强度的主要影响因素和工艺环节,并对不合格锻件采用有效的补充时效处理,可以获得较高的力学性能,实现优质GH2132合金叶片锻件屈服强度一次达标率高于90%,彻底解决屈服性能不合格的问题,从而降低重复热处理和检测所造成的成本及制造周期的浪费。
It was found by physical and chemical testing that, the yield strength of GH2132 alloy forgings used for an aircraft engine stator blade did not meet qualification requirements many times. To identify the reasons, the effects of ingredients, heat treatment, sampling locations, forging and supplementary aging on microstructure and properties were carried out. The main factors and technology procedures affecting the yield strength were found. Relative high mechanical properties can be obtained by applying an effective supplement aging treatment to unquali- fied forgings. As a result, the qualification rate of the yield strength of high grade GH2132 alloy blade forgings for one test is higher than 90 %; unsatisfactory performance problems are completely solved, thereby reducing the costs and manufacturing time wasting caused by the repeating heat treatments and tests
出处
《物理测试》
CAS
2013年第4期49-52,共4页
Physics Examination and Testing
