| WEI Xin1,YANG Gang 2,LI Chang-yong1,ZHAO Xing-dong1.Effect of Quenching and Tempering Heat Treatments on Microstructure and Properties of M152 Alloy Casing[J].航空发动机,2018,44(1):58-62 |
| Effect of Quenching and Tempering Heat Treatments on Microstructure and Properties of M152 Alloy Casing |
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| Key Words:M152 alloy casing microstructure and properties heat retreatment |
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| Abstract:The engine casing should be made of M152 alloy during independent research on domestic large aircrafts and their engines.
Requirements of the general mechanical properties were rigorous due to large size, complex structure, and great working load of the engine
casing disk forging. The systematic study on heat retreatment technology was necessary for increasing the microstructure and properties of
M152 alloy casing forging. The effect of different quenching and tempering treatments on microstructure and properties of M152 alloy casing
was studied through the experiment. The microstructure of the forging was analyzed by optical microscope, moreover, the room-temperature
tensile, impact and hardness of the forging were tested. The results show that after quenching at 1010益, oil cooling, tempering at 565益and
air cooling, a well matching of intensity and toughness of M152 alloy forging can be reached |
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