Fe Ru 6d 2s Os Hs.

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Presentation transcript:

Fe Ru 6d 2s Os Hs

MULTIPASS ARC WELD Weld macro L.-E. SVENSSON

L.-E. SVENSSON

100 µm

20 µm Barrite, 1982

Manual Metal Arc Weld 180 Amps 34 Volts 4 mm/s 200 °C interpass

calculations 800 700 600 Temperature / C 500 400 300 200 1 3 4 700 5 6 600 Temperature / C 500 1. Fe-0.4C 2. Fe-0.4C-2Si 400 3. Fe-0.4C-1Ni 4. Fe-0.4C-1Mn 5. Fe-0.4C-1Mn-1Cr 300 6. Fe-0.4C-2Mn 200 0 1 2 3 4 5 10 10 10 10 10 10 Time / s

Barrite, 1982

Barrite, 1982 5 µm

Fe-1Mn-C wt % manual metal arc welds 0.2 0.4 0.6 0.8 1.0 Allotriomorphic Volume fraction Widmanstatten Acicular 0.11 0.09 0.07 0.05 0.03 Carbon / wt %

Bhadeshia & Svensson, 1989

Bhadeshia & Svensson, 1989

Murugananth & Bhadeshia, 2001

Cool, 1996

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