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| 热处理工艺对Inconel718合金多层夹芯板结构的微观组织与力学性能的影响 | |
| 引用本文： | 曲凤盛,卢振,张凯锋,李保永.热处理工艺对Inconel718合金多层夹芯板结构的微观组织与力学性能的影响[J].材料工程,2011(4):1-8. |
| 作者姓名： | 曲凤盛 卢振 张凯锋 李保永 |
| 作者单位： | 1. 重庆大学材料科学与工程学院,重庆,400030 2. 哈尔滨工业大学材料科学与工程学院,哈尔滨,150001 3. 北京航星机器制造公司,北京,100013 |
| 摘 要： | 采用LBW+SPF组合技术制造Inconel718合金多层夹芯板结构.为了增强多层夹芯板结构使用时的安全性,研究其热处理技术.结果表明:Inconel718合金在焊接过程产生了Nb含量较高的Laves沉淀相;超塑成形后焊缝中的Nb元素的偏析问题得了缓解;经980℃固溶30min处理后,焊缝中的δ相完全回溶母体γ相,焊缝... |
| 关 键 词： | Inconel718 超塑成形 热处理工艺 Laves相 |
Effect of Heat Processing on Microstructure and Mechanical Property of Inconel718 Superalloy Multi-sheet Coreboard Structures |
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| QU Feng-sheng,LU Zhen,ZHANG Kai-feng,LI Bao-yong.Effect of Heat Processing on Microstructure and Mechanical Property of Inconel718 Superalloy Multi-sheet Coreboard Structures[J].Journal of Materials Engineering,2011(4):1-8. | |
| Authors: | QU Feng-sheng LU Zhen ZHANG Kai-feng LI Bao-yong |
| Affiliation: | 1 College of Materials Science and Engineering,Chongqing University,Chongqing 400030,China;2 School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China;3 Beijing Hangxing Machinery Manufacturing Company,Beijing 100013,China) |
| Abstract: | The Inconel718 superalloy with multi-sheet coreboard structure was manufactured by LBW+SPF complex technology.In order to enhance the security of multi-sheet coreboard structure,the heat treatment processing was studied.The results show that Laves precipitation phase which contains higher content Nb element in the welding process of Inconel718 superalloy.After SPF process,Nb segregation in the weld is partly dissolved.The heat treatment of solution treatment at 980℃/30min can make δ phase dissolve thoroughly into the γ phase and the Nb content of the dendritic in the weld joint steps up.The heat treatment of solution treatment at 1080℃/30min can make Laves phase dissolve and solve the problem of segregation Nb.Grain size of Inconel718 superalloy by solution treatment 1080℃ grows up greatly.The yield strength compared after superplastic forming decreases slightly. |
| Keywords: | Inconel718 superplastic forming heat treatment processing Laves phase |
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