Heat treatment of welded joints of steel 0.3С–1Cr–1Si produced by high-power fiber lasers
作者： S.V. Kuryntsev , A.Kh. Gilmutdinov
DOI: 10.1016/J.OPTLASTEC.2015.06.004
关键词:
摘要: Abstract The effect of heat treatment on the welded joints steel grade 0.3С–1Cr–1Si produced by 30 kW power fiber lasers was investigated in paper. speed welding process 20 mm/s. Heat carried out two levels, quenching with subsequent middle tempering and high tempering. samples were examined before after treatment, macro- microstructure studied using SEM, UTS, three points bent test, microhardness. significant: it allowed reduction weld hardness considerably enhancement its ductility.
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