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Comparison of fracture in sheets of low pressure gas (LPG) steel and aluminium alloys

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Title Comparison of fracture in sheets of low pressure gas (LPG) steel and aluminium alloys
 
Creator DATE, PP
PADMANABHAN, KA
 
Subject formability
behavior
carbon steel
aluminium alloys
fracture
microstructure
mixed mode of fracture
transgranular fracture
ductile intergranular fracture
 
Description Fracture behaviour under different stress states of four heats of hot rolled low pressure gas (LPG) grade steel and three 1 mm thick cold rolled aluminium alloys (Al-Cu-Mg, AI-Mg and AI-Mn) is compared. Dimple fracture was present in all four materials but the dimples were larger and of more uniform size in LPG steel compared with those present in the Al-alloys. Depending on the relative strength of pearlite and pearlite-matrix interface, failure in LPG steel was either transgranular or ductile intergranular. In the Al-alloys, particle-matrix decohesion was always responsible for dimple formation and transgranular fracture. In the Al-Cu-Mg and AI-Mg alloys a bimodal dimple size distribution, traceable to precipitates of two different sizes, was present but in the AI-Mn alloy the dimple size was larger and of nearly the same size. The results are explained in terms of composition, microstructure and mechanical properties of the alloys. (C) 2001 .
 
Publisher ELSEVIER SCIENCE SA
 
Date 2011-07-27T17:41:04Z
2011-12-26T12:57:53Z
2011-12-27T05:45:52Z
2011-07-27T17:41:04Z
2011-12-26T12:57:53Z
2011-12-27T05:45:52Z
2001
 
Type Article
 
Identifier JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 114(2), 122-128
0924-0136
http://dx.doi.org/10.1016/S0924-0136(01)00545-3
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7287
http://hdl.handle.net/10054/7287
 
Language en