Metallographic Investigation on Postweld Heat-Treated0.21%C-1020 Steel Plates Joined by SMAW Method

Figure 1

Experimental procedure. (a) Welded plates were heated in an open-hearth furnace; (b) temperature values were observed by using a pyrometer; (c) sample preparation for further analysis; (d) a tensile test specimen prepared by using wire-EDM.

(a)

(b)

(c)

(d)