| 改型GH4133A合金长期时效的组织稳定性研究 |
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| 引用本文： | 张冬梅,国振兴,陈仲强,牛昌安,史凤岭.改型GH4133A合金长期时效的组织稳定性研究[J].沈阳黄金学院学报,2010(2):121-126. |
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| 作者姓名： | 张冬梅 国振兴 陈仲强 牛昌安 史凤岭 |
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| 作者单位： | 中航工业沈阳黎明航空发动机（集团）有限责任公司,沈阳110043 |
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| 摘 要： | 采用显微组织观察和图像分析等方法,研究了改型GH4133A合金在650,700和750℃下长期时效过程中的组织变化.结果表明：在650℃和700℃下时效过程中,合金的组织变化规律一致,组织具有良好的稳定性.而在750℃时效时,500 h后开始出现η相.随时效时间增长,η相进一步析出、变长和粗化,由晶界向晶内生长;γ′相和M23C6数量增加;MC型碳化物则减少.
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| 关 键 词： | 改型GH4133A合金 长期时效 组织稳定性 |
Study of structure stability in modified GH4133A alloy after long-term aging |
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| Authors: | ZHANG Dong-mei GUO Zhen-xing CHEN Zhong-qiang NIU Chang-an SHI Feng-ling |
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| Affiliation: | (AVIC Shenyang Liming Aero-Engine(Group) Corporation Ltd,Shenyang 110043,China) |
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| Abstract: | Microstructural evolution in a modified GH4133A alloy was studied by microscope observation and image analysis after long-term aging at 650,700 and 750 ℃ for different time,respectively.The results indicated that the change of microstructure is identical,and structure stability is good in the modified GH4133A alloy after long-term aging at 650 and 700 ℃.However,when the aging temperature is 700 ℃,the η phase appeared.With the increasing of aging time,the η phase is further precipitated,elongated,coarsened and grown from grain boundaries into grain interior,the amount of γ′ phase and M23C6 increased,and MC carbide decreased. |
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| Keywords: | modified GH4133A alloy long-term aging structure stability |
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