The Paton Welding Journal, 2011, №04



2011 №04 (01)

2011 №04 (03)

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The Paton Welding Journal, 2011, #4, 5-13 pages  

EFFECT OF ALLOYING OF THE WELDS ON STRUCTURE AND PROPERTIES OF WELDED JOINTS ON STEEL 17Kh2M

L.I. MARKASHOVA, V.D. POZNYAKOV, T.A. ALEKSEENKO, E.N. BERDNIKOVA, S.L. ZHDANOV, O.S. KUSHNARYOVA and A.A. MAKSIMENKO

E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
 
 
Abstract
Structural-phase state of metal of the welded joints on high-strength low-carbon steel 17Kh2M (w_6/5 = 20-23 °C/s) produced by using welding wires of different chemical compositions and structural types (Sv-08G2S, Sv-08Kh20N9G7T, Sv-10KhN2GSMFTYu) was investigated. Analytical estimation of differential contribution of each structural parameter to a change in the set of mechanical properties (strength, ductility) of the HAZ and weld metal, as well as of a character of distribution and localisation of strain, level of local internal stresses, intensity and size of the stress raisers, which are potential sources of cracks forming during the welding process, was carried out on the basis of experimental data.
 
 
Keywords: arc welding, high-strength steel, welded joints, weld and HAZ metal, type of weld alloying, structural-phase parameters, mechanical properties, localised strain, local internal stresses, crack resistance
 
 
Received:                ??.??.??
Published:               28.04.11
 
 
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