Wetting and brazing characteristic of high nitrogen austenitic stainless steel and 316L austenitic stainless steel by Ag-Cu filler

被引：22
作者：
Zhu, Weiwei [1 ]
Zhang, He [1 ]
Guo, Chaohui [1 ]
Liu, Yaodong [1 ]
Ran, Xu [1 ]
机构：
[1] Changchun Univ Technol, Minist Educ, Key Lab Adv Struct Mat, Changchun 130012, Jilin, Peoples R China
来源：
VACUUM | 2019年 / 166卷
基金：
中国国家自然科学基金;
关键词：
High nitrogen steel; Wetting; Brazing; Microstructure; Shear strength; MECHANICAL-PROPERTIES; MICROSTRUCTURE; NICKEL; COPPER; SILVER; ALLOY; BEHAVIOR; ADSORPTION; EVOLUTION;
D O I：
10.1016/j.vacuum.2019.04.064
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the present work, wetting behaviour of Ag-Cu eutectic filler on high nitrogen austenitic stainless steel (HNS) and 316L austenitic stainless steel (316L) base metals was firstly studied using a sessile drop method in high vacuum. The Ag-Cu eutectic filler exhibits completely different dynamic wetting process on the surface of HNS and 316L. The equilibrium contact angle of Ag-Cu/HNS system is lower and its wetting time is shorter than that of Ag-Cu/316L system. Subsequently, brazing experiments were carried out for HNS and 316L base metals using the same filler at 840 degrees C for a holding period of 5-30 min under high vacuum. Microstructural analysis shows that the 316L/316L joints are composed of alpha-Cu and fine Ag-Cu eutectic. The HNS/HNS joints consist of beta-Ag and coarse Ag-Cu eutectic. The optimal shear strength of HNS/HNS joints (290 MPa) is significantly higher than that of 316L/316L joints (175 MPa) because of the formation of diffusion layer. Therefore, HNS has tremendous potential to take the place of the traditional austenitic stainless steels for industry application.
引用
收藏
页码：97 / 106
页数：10
相关论文
共 43 条
  • [1] Microstructure and deformation behavior of high nitrogen duplex stainless steels
    Akdut, N
    Foct, J
    [J]. ISIJ INTERNATIONAL, 1996, 36 (07) : 883 - 892
  • [2] Partial transient liquid phase diffusion bonding of zirconium alloy (Zr-2.5Nb) to stainless steel 321
    Atabaki, M. Mazar
    Bajgholi, M. E.
    Dehkordi, E. H.
    [J]. MATERIALS & DESIGN, 2012, 42 : 172 - 183
  • [3] The potential of vacuum brazing - State of the art and developments from the perspective of a service contractor
    Boretius, M
    [J]. ADVANCED ENGINEERING MATERIALS, 2006, 8 (03) : 158 - 161
  • [4] PHASE-DIAGRAMS AND THERMODYNAMIC PROPERTIES OF TERNARY COPPER-SILVER SYSTEMS
    CHANG, YA
    GOLDBERG, D
    NEUMANN, JP
    [J]. JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA, 1977, 6 (03) : 621 - 673
  • [5] Effects of surface microstructure on the active element content and wetting behavior of brazing filler metal during brazing Ti3SiC2 ceramic and Cu
    Chen, H. Y.
    Wang, X. C.
    Fu, L.
    Feng, M. Y.
    [J]. VACUUM, 2018, 156 : 256 - 263
  • [6] Microstructure Evolution During Stainless Steel-Copper Vacuum Brazing with a Ag/Cu/Pd Filler Alloy: Effect of Nickel Plating
    Choudhary, R. K.
    Laik, A.
    Mishra, P.
    [J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2017, 26 (03) : 1085 - 1100
  • [7] Cui DT, 2008, RARE METAL MAT ENG, V37, P690
  • [8] Elrefaey A., 2013, MAT SCI ENG A-STRUCT, V565, P108
  • [9] Measurement of contact angle and work of adhesion at high temperature
    Eustathopoulos, N
    Sobczak, N
    Passerone, A
    Nogi, K
    [J]. JOURNAL OF MATERIALS SCIENCE, 2005, 40 (9-10) : 2271 - 2280
  • [10] Eustathopoulos N, 2013, WOODH PUBL SER WELD, P3, DOI 10.1533/9780857096500.1.3
12345