| GH4199合金渗铝工艺研究 |
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| 引用本文： | 宋金贵,宋玺玉,牛静,王晓轩,曹一超.GH4199合金渗铝工艺研究[J].沈阳航空工业学院学报,2011,28(5):52-58. |
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| 作者姓名： | 宋金贵 宋玺玉 牛静 王晓轩 曹一超 |
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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,辽宁沈阳,110043 |
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| 摘 要： | 主要针对渗铝工艺中不同渗铝温度、保温时间对GH4199合金组织、性能影响进行试验，试验结果表明渗层组织由表及里分别为：表层主要为富铝的NiAl相，向内的过渡层和扩散层为富Cr相、碳化物、NiAl相和Ni3Al相等。渗层厚度的变化主要与温度和时间有关，同一渗铝温度下，随着渗铝时间的增加渗铝层深度增加；同一渗铝时间，随着渗铝温度的提高渗铝层深度增加。经渗铝处理后，室温拉伸强度提高，拉伸塑性降低。900℃拉伸强度降低，拉伸塑性提高；持久寿命稍降低，塑性提高。
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| 关 键 词： | GH4199合金 渗铝 工艺研究 |
Study on GH4199 alloy aluminizing process |
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| SONG Jin-gui,SONG Xi-yu,NIU Jing,WANG Xiao-xuan,CAO Yi-chao.Study on GH4199 alloy aluminizing process[J].Journal of Shenyang Institute of Aeronautical Engineering,2011,28(5):52-58. |
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| Authors: | SONG Jin-gui SONG Xi-yu NIU Jing WANG Xiao-xuan CAO Yi-chao |
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| Institution: | SONG Jin-gui,SONG Xi-yu,NIU Jing,WANG Xiao-xuan,CAO Yi-chao(Avic Shenyang Liming Aero-Engine(Group) Corporation Ltd.,Liaoning Shenyang 110043) |
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| Abstract: | This paper mainly discusses the effects of different temperatures and holding times on the structure and properties of GH4199 alloy.Results show that from the outside to the inside the aluminizing layers are respectively rich aluminum NiAl phase,mainly in the surface layer,and rich Cr phase,carbide,NiAl phase and Ni3 Al phase in the transition layer and diffusing layer.The thickness of aluminizing layers is mainly related to temperature and time.At the same temperature,the thickness of aluminizing layers in... |
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| Keywords: | GH4199 alloy aluminizing study on process |
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