Sagging mechanisms in the brazing of aluminum heat exchangers

被引：23
|
作者：
Qin, Jining [1 ,2 ]
Kang, Suk-Bong [2 ]
Cho, Jae-Hyung [2 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China
[2] Korea Inst Mat Sci, Chang Won 641831, Gyeongnam, South Korea
来源：
SCRIPTA MATERIALIA | 2013年 / 68卷 / 12期
关键词：
Aluminum alloys; Sag resistance; Brazing; Microstructure; AL-SI ALLOYS; INTERMETALLIC PHASES; BRAZEABILITY; SOLIDIFICATION; SHEETS;
D O I：
10.1016/j.scriptamat.2013.02.039
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A sagging mechanism was investigated using a sagging test rig to evaluate the brazeability of an aluminum sheet. The results show that sagging was controlled by softening of the elastic modulus in the initial stage, followed by an accelerative sagging stage, which was induced by both the dissolution of nanoprecipitates and the softening of the elastic modulus. Abnormal grain growth, which is related to the amount of final cold-rolling reduction, is responsible for the cessation of sagging at the end of the sagging process. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：941 / 944
页数：4
相关论文
共 50 条
  • [31] Pressure Dependence of Aluminum Ignition in Gaseous Oxygen and Possible Ignition Mechanisms in Brazed Aluminum Heat Exchangers
    Crayssac, Frederic
    Rostaing, Jean Christophe
    Werlen, Etienne
    Sun, Lianming
    Houghton, Patrick
    Kleinberg, William
    Coste, Frederic
    FLAMMABILITY AND SENSITIVITY OF MATERIALS IN OXYGEN-ENRICHED ATMOSPHERES, VOL 13, 2012, 1561
  • [32] An assessment of the brazing performance of warm formed automotive heat exchangers
    Benoit, M. J.
    Han, K. B.
    Winkler, S.
    Worswick, M. J.
    Wells, M. A.
    INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 2019, 103 (5-8): : 1935 - 1946
  • [33] An assessment of the brazing performance of warm formed automotive heat exchangers
    M. J. Benoit
    K. B. Han
    S. Winkler
    M. J. Worswick
    M. A. Wells
    The International Journal of Advanced Manufacturing Technology, 2019, 103 : 1935 - 1946
  • [34] BRAZING OF REGENERATIVE HEAT-EXCHANGERS WITH A RIBBED PLATE SURFACE
    KHORUNOV, VF
    KUZHEL, AV
    MALEVSKII, YB
    SUPERKO, OD
    MILLER, EA
    AUTOMATIC WELDING USSR, 1977, 30 (03): : 45 - 46
  • [35] CONTINUOUS HYDROGEN FURNACE BRAZING OF AIRCRAFT HEAT-EXCHANGERS
    LINDSAY, LB
    WIREMAN, DF
    WELDING JOURNAL, 1975, 54 (10) : 737 - 739
  • [36] Fouling corrosion in aluminum heat exchangers
    Su, Jingxin (13920616639@139.com), 1600, Chinese Journal of Aeronautics (28):
  • [37] Fouling corrosion in aluminum heat exchangers
    Su Jingxin
    Ma Minyu
    Wang Tianjing
    Guo Xiaomei
    Hou Liguo
    Wang Zhiping
    Chinese Journal of Aeronautics , 2015, (03) : 954 - 960
  • [38] REPAIR OF ALUMINUM HEAT-EXCHANGERS
    MORLEY, RA
    WILKINSON, TL
    WELDING JOURNAL, 1978, 57 (10) : 15 - 22
  • [39] Advantages of brazed aluminum heat exchangers
    Lunsford, KM
    HYDROCARBON PROCESSING, 1996, 75 (07): : 55 - &
  • [40] Advantages of brazed aluminum heat exchangers
    Bryan Research and Engineering, Bryan, United States
    Hydrocarbon Process, 7 (8pp):
12345