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  1. safaeng

    what is this structure

    hi This is a resistance spot weld of steel (2 mm thickness) process: squeez-->weld(KA,Cycles)-->hold(40 cycles) material: C Mn Si P S Cr 0.15 1.02 0.17 0.012 0.011 0.004 Ni Mo Al Co V Ti Cu 0.02 0.009 0.037 0.002 0.003 0.001 0.03 In general the resistance weld structure consists of...
  2. safaeng

    metalography question

    Hello I am looking for some help on this picture (attached) Ii is a resistance spot welded metal. Actually this picture is taken from the HAZ near to Weld metal. The base metal structure is ferrite and pearlite and the chemical composition is : C 0.15 Mn 1.02 Si 0.2 P, S, Al, Co, ~ 0.006 Mo...

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