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Structure and properties of high-strength steel connections under external static loading
Journal: Construction, materials science, mechanical engineering (Vol.1, No. 73)Publication Date: 2014-04-10
Authors : L. Markashova; V. Poznyakov; E. Berdnikov; T. Alekseenko; S. Zhdanov;
Page : 213-219
Keywords : Structure; HAZ; Fine-grained structures.;
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Abstract
The research showed that the HAZ metal of welded joints, which made of high-strength steel 17Kh2M by welding wire Sv-10KhN2GSMFTYu with cooling rate W6/5 = 20ºC/s, has the high level of strength and fracture toughness as after welding as in the conditions of external load under 0,75∙σВ = 765 МРа and 0,85∙σВ = 867 МРа. This is ensured by the formation in the HAZ metal the maximum number of fine grain structures of the lower bainite and martensite vacation.
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Last modified: 2017-04-23 06:26:42