Advanced Search
LI Haixin, WEI Hongmei, HE Peng, FENG Jicai. Interfacial microstructure and bonding strength of diffusion bonded TiAl/Ti/Nb/GH99 alloy joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2012, (9): 9-12.
Citation: LI Haixin, WEI Hongmei, HE Peng, FENG Jicai. Interfacial microstructure and bonding strength of diffusion bonded TiAl/Ti/Nb/GH99 alloy joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2012, (9): 9-12.
shu

Interfacial microstructure and bonding strength of diffusion bonded TiAl/Ti/Nb/GH99 alloy joint

  • State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China

More Information
  • Received Date: July 05, 2011
    Graphical Abstract
    • Abstract
  • Diffusion bonding of TiAl-based alloy to Ni-based alloy using Ti/Nb composite interlayer was carried out.The formation phases and the interfacial microstructure of the joints were investigated by scanning electron microscopy, electron probe X-ray analysis and X-ray diffraction.The bonding strength of the joints was evaluated through shear test.The results show that the typical interfacial microstructure of the joint is GH99/(Ni, Cr)ss/Ni3Nb/Ni6Nb7/(Ti, Nb)ss/α-Ti+(Ti, Nb)ss/Ti3Al/TiAl.The maximum shear strength of 273.8 MPa can be achieved under the condition of T=900℃ for t=30 min and p=20 MPa.With the joining temperature T increasing, the interfacial microstructure and thickness of reaction layer changes.When the brazing temperature T > 900℃, Ni6Nb7 reaction layer which has bad effect on the bonding strength forms.Based on the experimental results, the formation process of reaction layer was analyzed and interfacial reaction mechanism of the interface of GH99/Nb and Nb/Ti/TiAl was revealed.
    • FullText(HTML)
    • References (0)
    • Related Articles

  • Related Articles

    [1]WANG Tao, XUE Gang, YANG Jianguo, FANG Hongyuan. Equal load carrying capacity design system of joint based on stress intensity factor[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2013, (8): 101-104.
    [2]WANG Tao, YANG Jianguo, LIU Xuesong, FANG Hongyuan, ZHOU Lipeng. Influence of joint geometric parameters on shape factor of under-matched butt joint with center crack[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2012, (1): 101-104.
    [3]XU Lianyong, JING Hongyang. Stress intensity factor of interfacial crack between metal-base ceramic coating and steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2008, (3): 84-88.
    [4]YU Ping, TIAN Zhiling, PAN Chuan, XUE Zhenkui. Gas in weld for self-shielded flux-cored arc welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2007, (2): 67-70.
    [5]SUI Yong-li, DU Ze-yu, HUANG Fu-xiang, TIAN Liang. Influence of hydrogen on weld metal toughness by self-shielded flux-cored wire welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2006, (12): 74-76.
    [6]WANG Bao, YANG Lin, WANG Yong. Observation and analysis of metal transfer phenomena for flux-cored electrodes in CO2 arc welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2006, (7): 77-80.
    [7]ZHANG Zhong-ping, HUO Li-xing, WANG Dong-po, ZHANG Yu-feng. Effect of sprayed coatings on stress intensity factor of weld toe crack of cruciform welded joints[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2006, (2): 85-88.
    [8]WANG Fu-de, LI Zhi-yuan, YOU Min. Abrasive Wear of Cladding Metal of YDCrMoV CO2 Shielded Flux-cored Wire[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2000, (4): 46-49.
    [9]Zhang Wenyue, Yang Qingxia, Xu Yuhuan. Research on hardening factor of welding HAZ[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 1991, (4): 195-200.
    [10]Zhang Wenyue, Zhu Meili, Qin Boxiong. Research on effective diffusive hydrogen and hydrogen diffusive factor of welding cold cracking susceptibility[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 1991, (3): 129-135.

Catalog

    Get Citation
    PDF
    XML
    Article views (224) PDF downloads (129) Cited by()
    Turn off MathJax
    Article Contents
    Abstract
    Related Articles

    Website Copyright © Editorial Office of Transactions of the China Welding Institution, Welding Journals Publishing HouseTel：0451-86323218Address：No. 2077, Chuangxin Road, Songbei District, Harbin

    Supported by: Beijing Renhe Information Technology Co. Ltd    Baidu Analytics

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return