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Hardness and microstructural gradients in the heat affected zone of welded low-carbon quenched and tempered steels

Journal Article


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Abstract


  • This paper concentrates on the form of the hardness gradient

    in the heat affected zones (HAZs) produced by submerged arc

    welding of two low-carbon Q & T steels. The results show

    unequivocally that the gradient differs from that found in

    steels of lower carbon equivalent in that the peak HAZ hardness

    is displaced from the grain coarsened heat affected zone

    (GCHAZ) into the grain refined heat affected zone (GRHAZ).

    Weld thermal cycle simulation has been used to confirm the

    results obtained from actual welds and to clarify the cause of

    this unexpected phenomenon.

UOW Authors


  •   Ahmed, N (external author)
  •   Pang, W (external author)
  •   Dunne, Druce

Publication Date


  • 2011

Citation


  • Pang, W., Ahmed, N. & Dunne, D. 2011, ''Hardness and microstructural gradients in the heat affected zone of welded low-carbon quenched and tempered steels'', Australasian Welding Journal, vol. 56, no. 2, pp. 36-48.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1901&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/895

Number Of Pages


  • 12

Start Page


  • 36

End Page


  • 48

Volume


  • 56

Issue


  • 2

Abstract


  • This paper concentrates on the form of the hardness gradient

    in the heat affected zones (HAZs) produced by submerged arc

    welding of two low-carbon Q & T steels. The results show

    unequivocally that the gradient differs from that found in

    steels of lower carbon equivalent in that the peak HAZ hardness

    is displaced from the grain coarsened heat affected zone

    (GCHAZ) into the grain refined heat affected zone (GRHAZ).

    Weld thermal cycle simulation has been used to confirm the

    results obtained from actual welds and to clarify the cause of

    this unexpected phenomenon.

UOW Authors


  •   Ahmed, N (external author)
  •   Pang, W (external author)
  •   Dunne, Druce

Publication Date


  • 2011

Citation


  • Pang, W., Ahmed, N. & Dunne, D. 2011, ''Hardness and microstructural gradients in the heat affected zone of welded low-carbon quenched and tempered steels'', Australasian Welding Journal, vol. 56, no. 2, pp. 36-48.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1901&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/895

Number Of Pages


  • 12

Start Page


  • 36

End Page


  • 48

Volume


  • 56

Issue


  • 2