[1]彭徽,陶申,陈博,等.电子束选区熔化(SEBM)增材制造高温合金研究进展[J].中国材料进展,2022,41(04):252-267.[doi:10.7502/j.issn.1674-3962.202109041]
 PENG Hui,TAO Shen,CHEN Bo,et al.Research Progress of Superalloys Fabricated by Selective Electron Beam Melting (SEBM)[J].MATERIALS CHINA,2022,41(04):252-267.[doi:10.7502/j.issn.1674-3962.202109041]
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电子束选区熔化(SEBM)增材制造高温合金研究进展()
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
41
期数:
2022年第04期
页码:
252-267
栏目:
出版日期:
2022-04-30

文章信息/Info

Title:
Research Progress of Superalloys Fabricated by Selective Electron Beam Melting (SEBM)
文章编号:
1674-3962(2022)04-0252-16
作者:
彭徽12陶申1陈博3郭洪波24
(1. 北京航空航天大学 前沿科学技术创新研究院,北京 100191)(2. 北京航空航天大学 高温结构材料与涂层技术工信部重点实验室,北京 100191)(3. 莱斯特大学工学院,英国 莱斯特 LE1 7RH)(4. 北京航空航天大学材料科学与工程学院,北京 100191)
Author(s):
PENG Hui12TAO Shen1CHEN Bo3GUO Hongbo24
(1. Research Institute for Frontier Science, Beihang University, Beijing 100191, China) (2. Key Laboratory of High-Temperature Structural Materials & Coatings Technology (Ministry of Industry and Information Technology), Beihang University, Beijing 100191, China) (3. School of Engineering, University of Leicester, Leicester LE1 7RH, UK) (4. School of Materials Science and Engineering, Beihang University, Beijing 100191, China)
关键词:
增材制造电子束选区熔化高温合金裂纹敏感性组织调控
Keywords:
additive manufacturing selective electron beam melting superalloy crack sensitivity microstructure tailoring
分类号:
TF124; TG146.1+5
DOI:
10.7502/j.issn.1674-3962.202109041
文献标志码:
A
摘要:
高温合金具有优异的抗氧化、耐腐蚀等性能,被广泛应用于航空发动机热端部件。以激光、电子束等高能束流为热源的增材制造(additive manufacturing,AM)技术在制备复杂结构高温合金部件方面具有显著优势:不仅能缩短生产制造周期、降低研发成本,而且能够细化合金组织,提高合金力学性能。但随着高温合金中铝、钛含量的增加,γ′相体积占比增大,合金高温力学性能提升的同时也造成其可焊性差,给增材制造该类高温合金带来挑战。与激光选区熔化(selective laser melting,SLM)技术相比,电子束选区熔化(selective electron beam melting,SEBM)技术可通过粉末床预热缓解合金凝固热应力,有利于降低增材制造时的热裂倾向。针对近年来国内外SEBM技术制备镍基高温合金、钴基高温合金等合金所涉及的工艺参数、微观组织、力学性能及应用等方面进行了综述,包括作者课题组新近的成果,并指出该领域的未来发展方向。
Abstract:
uperalloys are widely used in hot components of aero-engines, mainly due to their good oxidation/corrosion resistance and outstanding mechanical properties. Beam-based additive manufacturing (AM) technologies, particularly the laser and electron beam melting processes, exhibit great potential in producing superalloy components with complex geometries. It combines the advantages of both high flexibility and cost-effectiveness. Besides, the AM superalloys usually have a comparably higher tensile strength than the conventional cast, as a result of the yielded refined microstructure. However, with the increase of Al and Ti content, the superalloys with a higher volume fraction of γ′ phase demonstrate high crack sensitivity. This brings challenges of applying AM to the aero industry. Compared with selective laser melting (SLM), the powder bed preheating featured by selective electron beam melting (SEBM) helps alleviating the thermal stress and the resultant hot cracks. In this review, the latest developments of Ni and Co-based superalloys fabricated by SEBM are reviewed. The SEBM processing parameters, microstructure and mechanical properties of weldable and nonweldable superalloys are compared and evaluated. Finally, several possible research directions are also suggested.

备注/Memo

备注/Memo:
收稿日期:2021-09-30 修回日期:2021-12-07 基金项目:国家科技重大专项(2019VII00160157)第一作者:彭徽,男,1982年生,副教授,博士生导师, Email:penghui@buaa.edu.cn
更新日期/Last Update: 2021-10-29