Y. H. Wei
,
R. P. Liu and Z. J. Dong( 1) National Key Laboratory of Advanced Welding Production Technology
,
HIT
,
Harbin 150001
,
China 2) Harbin Research institute of Welding
,
Harbin 150080
,
China)
金属学报(英文版)
This paper analyzed the characteristics of welding solidification crack of stainless steels,and clearly re- vealed the the of the deformation in the molten - the pool and the solidification shrinkage on the stress - strain fields in the trail of molten - weld pool.Moreover, rheologic properties of the alloys in solid - liquid zone were also obtained by measuring the hading and unloading deform curves of the steels.As a result, a numerical model for simulation of stress - strain distributions of welding solidifi- cation crack was developed. On the basis of the model,the thesis simulated the driving force of solidifi- cation crack of stainless steels, that is, stress - strain fields in the trail of molten-weld pool with fi- nite element method.
关键词:
welding solidification crack
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