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LIZhuo ran, CAOJian, FENGJi cai. FEM analysis of thermal/residual stresses in brazing TiB2 cermet/TiAl joints[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2003, (3): 1-4.
Citation: LIZhuo ran, CAOJian, FENGJi cai. FEM analysis of thermal/residual stresses in brazing TiB2 cermet/TiAl joints[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2003, (3): 1-4.

FEM analysis of thermal/residual stresses in brazing TiB2 cermet/TiAl joints

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  • Received Date: March 30, 2003
  • Finite element method was used to calculate residual stresses that developed when TiAl was bonding to TiB2 cermet by Ag-based filler metal during cooling from joining temperature. The stresses distributions of the joint in different joining temperature was studied. The results show that the residual stresses concentration caused by the thermal expansion mismatch between three layerswas observed both in TiAl/filler metal interface and in TiB2 cermet/filler metal interface. Especially, the maximum value of the residual stresses between TiAl and filler metal are higher than that between TiB2 cermet and filler metal. Stresses distributions are slightly dependent upon joining temperature. But when the joining temperature became lower, the value of the residual stresses at the same position decreased accordingly.
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