Jia Xiao, Ming Li, Li Jiang, De-jun Wang, Xiang-Xi Ye, Jian-ping Liang, Ze-zhong Chen, Na-xiu Wang, and Zhi-jun Li, Fine Structure Characterization of Explosively Welded GH3535/316H Bimetallic Plate Interface, Int. J. Miner. Metall. Mater. https://doi.org/10.1007/s12613-020-2128-7
Cite this article as:
Jia Xiao, Ming Li, Li Jiang, De-jun Wang, Xiang-Xi Ye, Jian-ping Liang, Ze-zhong Chen, Na-xiu Wang, and Zhi-jun Li, Fine Structure Characterization of Explosively Welded GH3535/316H Bimetallic Plate Interface, Int. J. Miner. Metall. Mater. https://doi.org/10.1007/s12613-020-2128-7
Research Article

Fine Structure Characterization of Explosively Welded GH3535/316H Bimetallic Plate Interface

+ Author Affiliations
  • Received: 9 March 2020Revised: 19 June 2020Accepted: 24 June 2020Available online: 26 June 2020
  • To provide one more cost-effective structural materials for the ultra-high temperature molten salt thermal storage systems, the explosion-welded technology was induced to manufacture the GH3535/316H bimetallic plates in the present work. The microstructures of the bonding interfaces have been extensively investigated by scanning electron microscope, energy dispersive spectrometer, and electron probe micro-analyzer. It was discovered that the bonding interfaces possess the periodic wavy morphology and are adorned by peninsula- or island-like transition zones. At higher magnification, matrix recrystallization region, fine grain region, columnar grain region, equiaxed grain region, and shrinkage porosity can be observed in the transition zones and the surrounding area. The analysis of electron backscattered diffraction demonstrated that the strain in the recrystallization region of the GH3535 matrix and transition zone is lower than the substrate. Strain concentration occurred at the interface and the solidification defects in the transition zone. The dislocation substructure in 316H near the interface was characterized by the electron channeling contrast imaging. The results showed that a lot of dislocations network was formed in the grains of 316H. Microhardness tests showed that the micro-hardness decreased as the distance from the welding interface increased, and the lowest hardness value was inside the transition zone.
  • loading
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Share Article

    Article Metrics

    Article views (1152) PDF downloads(17) Cited by()
    Proportional views

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return