| 2006 №05 (02) | 2006 №05 (04) |
The Paton Welding Journal, 2006, #5, 12-15 pages
Effect of phosphorus on crack resistance of low-carbon deposited metal
I.I. Ryabtsev, Yu.M. Kuskov, D.P. Novikova
E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.Abstract
The paper presents results of investigation into the effect of phosphorus at its content of 0.3--3.5 wt.% on crack resistance of low-alloyed carbon deposited metal of the Fe-Mn-Si-Cr system. It is shown that cold cracks in the deposited metal of the type under investigation form at a phosphorus content of > 1.2 %. Brittle phosphide eutectics are the centres of initiation and propagation of cold cracks. In a multilayer deposited metal, the cracks can propagate from layer to layer, but they do not transfer into the base metal.
Keywords: arc cladding, low-alloy deposited metal, alloy¬ing with phosphorus, crack resistance, technological test, phosphide eutectics
References
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