Influence of prior deformation in austenite on the martensite formation in a low-alloyed carbon steel

Lindgren, Lars-Erik (författare): Luleå tekniska universitet,Material- och solidmekanik,Luleås tekniska universitet,Materialmekanik

(creator_code:org_t)

Trans Tech Publications, 2019
2019
Engelska.
Ingår i: Materials Science Forum. - : Trans Tech Publications. - 0255-5476 .- 1662-9752. ; 941, s. 95-99

Relaterad länk:: https://urn.kb.se/re...; visa fler...; https://doi.org/10.4...; https://urn.kb.se/re...; visa färre...

Abstract Ämnesord

Stäng

The current work aims at developing models supporting design of the rolling and quenching processes. This requires a martensite formation model that can account for effect of previous plastic deformation as well as evolution of stress and temperature during the quenching step. The effect of deformation prior to the cooling on the transformation is evaluated. The experimental result shows that prior deformation impedes the martensite transformation due to the mechanical stabilisation of the austenite phase. Larger deformation above 30 % reduces the effect of the mechanical stabilisation due to increase in martensite nucleation sites. The computed transformation curves, based on an extended version of the Koistinen-Marburger equation, agree well with experimental results for pre-straining less than 30 %.

TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)

Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Materialteknik; och Annan materialte ...

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