Record Details

Development of low alloy ultrahigh strength steel

DSpace at IIT Bombay

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Field Value
 
Title Development of low alloy ultrahigh strength steel
 
Creator MAITY, SK
BALLAL, NB
GOLDHAHN, G
KAWALLA, R
 
Subject mechanical-properties
thermomechanical treatment
microstructure
inoculation
plates
themomechanical treatment
ultrahigh strength steel
cooling rate
microstructure
mechanical properties
 
Description Thermomechanical treatment (TMT) of plates is used to obtain the optimum combination of strength and toughness. Although this technique is applied to high strength low alloy (HSLA) steels, its application to ultrahigh strength steel (UHSS) is still under study. In this investigation, four C, Mn, Cr and Mo alloys, some with Nb or Ti additions, were prepared by electroslag refining (ESR), hot rolling with TMT and variations in cooling rate. Mechanical properties were evaluated and microstructural features were characterised. The oil cooled specimens of titanium alloy produced the optimum properties with higher strength values: ultimate tensile strength (UTS) = 52177 MPa, yield strength (YS) = 51795 MPa, elongation (El) = 58% and impact toughness = 713 kJ m(-2), with microstructures predominantly consisting of lath martensite.
 
Publisher MANEY PUBLISHING
 
Date 2011-08-17T13:41:39Z
2011-12-26T12:55:34Z
2011-12-27T05:41:11Z
2011-08-17T13:41:39Z
2011-12-26T12:55:34Z
2011-12-27T05:41:11Z
2008
 
Type Article
 
Identifier IRONMAKING & STEELMAKING, 35(3), 228-240
0301-9233
http://dx.doi.org/10.1179/174328108X271493
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9884
http://hdl.handle.net/10054/9884
 
Language en