Transformation Plasticity in Steel Welds

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Presentation transcript:

Transformation Plasticity in Steel Welds

Watson and McDougall

Swallow & Bhadeshia, 1996

possible elongation of 15%

Lower bainite, transformed with and without stress Chang et al., 1996

Jones & Alberry, 1977

Ohta et al., 2000-2003

Ohta et al., 2000-2003

Ohta et al., 2000-2003

Murugananth & Bhadeshia

7Ni 2Mn Keehan, Karlsson, Andrén, Bhadeshia, Science & Techn. Welding & Joining 11 (2006) 9-18

constrained tensile sample 316 austenitic stainless steel constrained tensile sample hot-strength

Transformation strain 24 variants of martensite per austenite grain Variant selection

Goss Cube

Experimental Calculated Calculated Kundu and Bhadeshia, Scripta Materialia 55 (2006) 779

Experimental Calculated Calculated

Kundu, Hase, Bhadeshia, Proc. Roy. Soc. 2007