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2017 №07 (01) DOI of Article
10.15407/as2017.07.02 		2017 №07 (03)

Automatic Welding 2017 №07


Avtomaticheskaya Svarka (Automatic Welding), #7, 2017, pp. 8-18
 

Structure and service properties of welded joints of high-strength steels, aluminium and titanium alloys

L.I. Markashova, V.D. Poznyakov, E.N. Berdnikova, T.A. Alekseenko, O.S. Kushnareva and E.V. Polovetsky


E.O. Paton Electric Welding Institute, NASU 11 Kazimir Malevich Str., 03680, Kiev, Ukraine. E-mail: office@paton.kiev.ua
 
Abstract
A structural-analytical approach to evaluation of effect of structural-phase states on change of the most significant mechanical properties of examined materials was used in this work. A role of structural factors (alloying type, phase composition, size of grain and subgrain structure, distribution and density of dislocation, phase precipitations, their size and nature of distribution) was shown for ensuring optimum properties of welded joints and their operation reliability. Experimental-analytical evaluations have determined structural-phase parameters and factors providing the necessary complex of welded joint properties. 20 Ref., 2 Tables, 12 Figures.
 
Keywords: argon-arc welding, friction stir welding, electron beam welding, hybrid laser-arc welding, aluminium alloy, heat-resistant titanium alloy, high-strength steel, welded joints, structure, phase composition, mechanical properties, fracture toughness, crack resistance
 
 
Received:                01.04.17
Published:               01.09.17
 
 
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