Integrated mechanical-metallurgical approach to modeling of solidification cracking in welds

被引：26

作者：

Ploshikhin, V ^{[1
]}

Prikhodovsky, A ^{[1
]}

Makhutin, M ^{[1
]}

Ilin, A ^{[1
]}

Zoch, HW ^{[1
]}

机构：

[1] Neue Mat Bayreuth GmbH, Bayreuth, Germany

来源：

HOT CRACKING PHENOMENA IN WELDS | 2005年

关键词：

D O I：

10.1007/3-540-27460-X_12

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The presented approach is based on experimental observations which clearly show that the hot cracking phenomenon is a result of accumulation of macroscopic tensile strains in a microscopic intergranular film of liquid enriched with segregating elements at the final stage of solidification. The modeling takes into account the effects of strain accumulation as well as the influence of the microstructure and the thermo-dynamical properties of the welded material. The integrated approach provides a clear phenomenological inter-relation between parameters of the welding process, properties of the welded material and the cracking susceptibility. It is successfully used for the development of technological means, such as a multi-beam welding, for eliminating solidification cracking.

引用

页码：223 / 244

页数：22

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