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					     Fe
     Ru
          6d 2s
     Os

Fe

Ru
Os


     Hs
Hs
MULTIPASS ARC WELD




                     L.-E. SVENSSON
L.-E. SVENSSON
    c




a
100 µm
Barrite, 1982   20 µm
                   1000



                                                                    Manual Metal Arc Weld
                    800

                                                                    180    Amps
Temperature / °C




                    600                                             34     Volts
                                                                    4      mm/s
                    400
                                                                    200 °C interpass
                    200
                          0   20   40      60      80   100   120

                                        Time / s
calculations
                    800
                               2                1
                                            3            4
                    700                                      5
                                                                      6
  Temperature / C




                    600

                    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

                       1.0

                       0.8      Allotriomorphic
     Volume fraction



                       0.6
                                           Widmanstatten
                       0.4

                       0.2
                                                  Acicular

                         0.03   0.05      0.07     0.09      0.11
                                   Carbon / wt %
Bhadeshia &
Svensson,
1989
Bhadeshia &
Svensson,
1989
Murugananth & Bhadeshia, 2001
Cool, 1996

				
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