| 涂层烧结及热处理工艺对GH2O2合金组织性能的影响 |
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| 引用本文： | 余金山,夏长清.涂层烧结及热处理工艺对GH2O2合金组织性能的影响[J].中南大学学报(自然科学版),2000,31(5):448-450. |
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| 作者姓名： | 余金山 夏长清 |
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| 作者单位： | 中南大学材料科学与工程系，湖南 长沙 410083 |
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| 基金项目： | 国防科工委军工配套项目 |
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| 摘 要： | 研究了涂层烧结及热处理工艺对GH202合金基材组织性能的影响．运用电子拉伸机、扫描电镜及光学显微镜，测定了拉伸试样的力学性能，并分析了试样的显微组织和拉伸断口．试验结果表明，GH202合金在1150℃固溶处理5h后，合金表面进行高温涂层与烧结，在850℃时效6h出炉空冷，合金基体晶粒细小，均匀；强化相γ弥散分布；合金强度提高，塑性改善，拉伸断口为韧性断裂．
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| 关 键 词： | 涂层 热处理工艺 力学性能 |
| 文章编号： | 1005-9792(2000)05-0448-03 |
| 修稿时间： | 2000年1月4日 |
Effect of sinter and heat treatment of inorganic coating on the microstructures and properties of GH2O2 superalloy |
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| YU Jin-shan,XIA Chang-qing.Effect of sinter and heat treatment of inorganic coating on the microstructures and properties of GH2O2 superalloy[J].Journal of Central South University:Science and Technology,2000,31(5):448-450. |
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| Authors: | YU Jin-shan XIA Chang-qing |
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| Abstract: | The effect of coating sintering and heat trealment on the microstructures and properties of the super-alloyGH202 has been investigated. The mechanical properties are measured. The microstructures and tensile fracture havebeen analyzed. The results show that the alloy is transformed into a free grain size and the strengthening phase γ is dis-persed. After the alloy is treated at 1 150℃ for 5 h, the coating is sintered and finally the alloy is heated at 850℃ for6 h. The tensile strength and elongation are increased and its tensile fracture is ductile failure. |
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| Keywords: | coating heat treatment mechanical properties |
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