The Paton Welding Journal, 2012, №05



2012 №05 (03)

2012 №05 (05)

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The Paton Welding Journal, 2012, #5, 17-25 pages  

EFFECT OF STRUCTURAL-PHASE TRANSFORMATIONS IN ALUMINIUM-LITHIUM ALLOY 1460 JOINTS ON PHYSICAL-MECHANICAL PROPERTIES

L.I. MARKASHOVA, A.Ya. ISHCHENKO, O.S. KUSHNARYOVA and V.E. FEDORCHUK

E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
 
 
Abstract
Analysis of experimental data on evaluation of mechanical properties of the alloy joints was performed by taking into account the weld metal composition, grain and sub-grain sizes, real dislocation density, volume content of phase precipitates, etc. The effect of each of the specific structural-phase parameters on mechanical characteristics of the welded joints and their change under the influence of postweld heat treatments and external loading was determined.
 
 
Keywords: heat treatment, weld metal, aluminium alloy, scandium, fine structure, phase precipitates, dislocation density, composite phase precipitates
 
 
Received:                28.11.11
Published:               28.05.12
 
 
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