Paper Title:
Control of Cold Welding Cracks in 30CrMnSi Steel by Welding with Trailing Impacting and Rolling
  Abstract

As a kind of the high strength low alloy steel (HSLA), 30CrMoSi has been used widely in some industrial fields. However, just like some HSLA, this steel also faces some problems when it is welded, especially such problem as cold cracking in the welded joints. In this paper, the cold welding cracks and microstructure of the joints of 30CrMoSi steel were studied by scanning electron microscopy (SEM) and optical microscopy (OM), and a method called welding with trailing impacting and rolling (WTIR) was utilized to solve the problem mentioned above by decreasing the residual welding stress which is one main factor to lead to cold welding crack in the joint of HSLA. The crack-free joints of 30CrMoSi steel were obtained by using proper parameters.

  Info
Periodical
Advanced Materials Research (Volumes 295-297)
Chapter
Chapter 1: Materials Properties
Edited by
Pengcheng Wang, Liqun Ai, Yungang Li, Xiaoming Sang and Jinglong Bu
Pages
1251-1258
DOI
10.4028/www.scientific.net/AMR.295-297.1251
Citation
J. G. Yang, L. Y. Huang, H. B. Pan, X. S. Liu, H. Y. Fang, "Control of Cold Welding Cracks in 30CrMnSi Steel by Welding with Trailing Impacting and Rolling", Advanced Materials Research, Vols. 295-297, pp. 1251-1258, 2011
Online since
July 2011
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Price
$32.00
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