Effect of Substrate Preheating, Remelting, In-situ Presintering on Crack Formation of Ti-47Al-2Cr-2Nb Fabricated by Selective Laser Melting

被引：0
|
作者：
Shi, Xuezhi [1 ]
Huang, Yunfeng [1 ]
Li, Zhenhua [1 ]
Feng, Wuwei [1 ]
Ma, Shuyuan [2 ]
机构：
[1] School of Marine Engineering Equipment, Zhejiang Ocean University, Zhoushan,316022, China
[2] School of Mechanical Engineering, Beijing Institute of Technology, Beijing,100081, China
来源：
Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering | 2022年 / 51卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Aluminum alloys - Chromium alloys - Niobium alloys - Preheating - Surface properties - Titanium alloys;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The methods of substrate preheating, remelting and in-situ presintering were proposed to fabricate Ti-47Al-2Cr-2Nb by selective laser melting (SLM). The effects of these approaches on the formation of cracks and surface quality were investigated. The results indicate that substrate preheating, remelting and in-situ presintering powder can reduce the formation of cracks to a certain extent, and the density is increased by 1.71%~4.34%. Remelting contributes to improvement of the surface quality but greatly reduces the productivity. In addition, the combination of substrate preheating and in-situ presintering can effectively prevent the occurrence of cracks, and the density is over 99%. Copyright © 2022, Northwest Institute for Nonferrous Metal Research. Published by Science Press. All rights reserved.
引用
收藏
页码：2739 / 2744
相关论文
共 50 条
  • [21] Joining Ti-47Al-2Cr-2Nb with a Ti/(Cu,Ni)/Ti clad-laminated braze alloy
    Guedes, A
    Pinto, AMP
    Vieira, MF
    Viana, F
    JOURNAL OF MATERIALS SCIENCE, 2003, 38 (11) : 2409 - 2414
  • [22] Effect of stress orientation on microstructural evolution during creep of near-lamellar Ti-47Al-2Cr-2Nb
    Babu, R. Prasath
    Karthikeyan, S.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2013, 564 : 218 - 231
  • [23] An Experimental Assessment of the Effects of Heat Treatment on the Microstructure of Ti-47Al-2Cr-2Nb Powder Compacts
    O. Berteaux
    F. Popoff
    M. Thomas
    Metallurgical and Materials Transactions A, 2008, 39 : 2281 - 2296
  • [24] Influence of oxygen on microstructure and mechanical properties of directionally solidified Ti-47Al-2Cr-2Nb alloy
    Ding, Hongsheng
    Nie, Ge
    Chen, Ruirun
    Guo, Jingjie
    Fu, Hengzhi
    MATERIALS & DESIGN, 2012, 41 : 108 - 113
  • [25] Microstructure and mechanical properties of cast Ti-47Al-2Cr-2Nb alloy melted in various crucibles
    Wang Ligang
    Zheng Lijing
    Cui Renjie
    Yang Lili
    Zhang Hu
    CHINA FOUNDRY, 2012, 9 (01) : 48 - 52
  • [26] An experimental assessment of the effects of heat treatment on the microstructure of Ti-47Al-2Cr-2Nb powder compacts
    Berteaux, O.
    Popoff, F.
    Thomas, M.
    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2008, 39A (10): : 2281 - 2296
  • [27] Microstructure and mechanical properties of cast Ti-47Al-2Cr-2Nb alloy melted in various crucibles
    Wang Ligang
    China Foundry, 2012, (01) : 48 - 52
  • [28] Lamellar orientations and growth directions of β dendrites in directionally solidified Ti-47Al-2Cr-2Nb alloy
    Xiao, Zhixia
    Zheng, Lijing
    Yan, Jie
    Yang, Lili
    Zhang, Hu
    JOURNAL OF CRYSTAL GROWTH, 2011, 324 (01) : 309 - 313
  • [29] High temperature deformation behaviors of polysynthetically twinned (PST) Ti-47Al-2Cr-2Nb alloy
    Ding Hongsheng
    Nie Ge
    Chen Ruirun
    Guo Jingjie
    Fu Hengzhi
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 558 : 747 - 754
  • [30] Microstructure and mechanical properties of cast Ti-47Al-2Cr-2Nb alloy melted in various crucibles
    Wang LigangZheng LijingCui RenjieYang LiliZhang Hu School of Materials Science and EngineeringBeihang UniversityBeijing China
    China Foundry, 2012, 9 (01) : 48 - 52
12345