Paper Title:
Fracture Analysis of Superplastic Diffusion Bonding Joints between Titanium Alloy and Stainless Steel
  Abstract

The microstructure and characteristic of fracture between TC4 titanium alloy and 1Cr18Ni9Ti stainless steel bonding joints were analyzed concretely in this paper. For direct SP/DB of TC4/1Cr18Ni9Ti, the diffusion layer joint was composed of some new phases such as β-Ti, TiFe2, TiFe, σ-FeCr and α-Fe, and the shear strength could be ensured when the thickness of TiFe/TiFe2 brittle phases was controlled within 3~5μm. In SP/DB of TC4/1Cr18Ni9Ti, the joint status of microzone in interface was asymmetric and exhibited different fractograph. The bonding area of fracture could be divided into three zones: similar original interface zone, metallurgical bonding zone and quasi-metallurgical bonding zone. The interface deficiencies were constitutive of mechanical bonding area, cavity and impurity.

  Info
Periodical
Materials Science Forum (Volumes 561-565)
Main Theme
Edited by
Young Won Chang, Nack J. Kim and Chong Soo Lee
Pages
1011-1014
DOI
10.4028/www.scientific.net/MSF.561-565.1011
Citation
M. Wang, J.W. Dai, H. Z. Guo, C.X. Ma, "Fracture Analysis of Superplastic Diffusion Bonding Joints between Titanium Alloy and Stainless Steel", Materials Science Forum, Vols. 561-565, pp. 1011-1014, 2007
Online since
October 2007
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$32.00
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