Paper Title:
Evaluation of Optimal Conditions for D-Tube Brazing
  Abstract

The microstructures and mechanical properties of OFHC copper/STKM 11A for D-tube joints brazed using BAg filler metal at 870 °C for 20 minutes in NH3 atmospheres were performed. Interfacial microstructures were observed in reaction layer. A brazing strength causes of decline with defects of pin hole and base metal by lack of penetration. In tensile test, the properties of joints clearance of 0.01mm are better than other joints clearance that has yield strength of elasticity area with the brazing length of 2.5mm, and also suitable for the case of brazing length of 5.0mm. According to the results of FEA (finite element analysis) on the tensile test, the maximum stress and strain were generated apart from the interface in large deformation. Diffused layer was formed by counter diffusion action of base metal and filler metal layer, and crack between two base metals was not discovered. This is the main reason that fracture of test piece does not appear in copper base metal, and brazing department forms good junctures.

  Info
Periodical
Advanced Materials Research (Volumes 33-37)
Edited by
Wei Yang, Mamtimin Geni, Tiejun Wang and Zhuo Zhuang
Pages
1345-1350
DOI
10.4028/www.scientific.net/AMR.33-37.1345
Citation
W.K. Joo, Y. Q. Wang, H.T. Yang, W.C. Lee, C.Y. Sim, J. I. Song, "Evaluation of Optimal Conditions for D-Tube Brazing ", Advanced Materials Research, Vols. 33-37, pp. 1345-1350, 2008
Online since
March 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Young Sup Lee, Cheol Ho Lim, C.H. Lee, K.W. Seo, Seung Y. Shin, Chang Hee Lee
Abstract:In this study, a diffusion bonding of aluminium alloy A6061 was preformed using an Ag-28Cu filler metal in order to conduct eutectic...
2772
Authors: Yong Won Lee, Jong Hoon Kim, Young Sik Song, Chang Sung Seok
Abstract:The formation of intermetallic compounds in brazed joints between SUS304 and nickel-based filler metal is a major concern, since they...
1673
Authors: Seung Wook Baek, Won Bae Lee, Ja Myeong Koo, Chang Yong Lee, Seung Boo Jung
Abstract:Microstructure and mechanical properties of friction welded and vacuum brazed Ti/AISI 321 stainless steel have been evaluated with various...
423
Authors: Yan Li, Xin Yang Wang, Shi Zhong Wei, Xiang Dong Ma, Liu Jie Xu
Abstract:Al2O3 ceramics and carbon steels were brazed using Cu-Ti active filler metal. The weld interface was characterized using scanning electron...
647
Authors: Xing Hua Liang, Xiao Hua Jie
Other related topics
Abstract:The microstructure and properties of brazing weld of 3003 Aluminum Alloy has been studied by using the methods of microstructure...
3098