Mechanical Behaviors of Friction Stir Spot Welded Joints of Dissimilar Ferrous Alloys under Opening-Dominant Combined Loads

Table 1

The chemical compositions provided by the manufacturer and mechanical properties of SPCC and SUS 409L.

(a)

Chemical compositions (wt%)
	C	Mn	P	Si	S	S-AL	Fe
SPCC	0.0361	0.205	0.015	0.019	0.006	0.037	At balance

(b)

Chemical compositions (wt%)
	C	Cr	Mn	P	Si	S	Ni	Ti	Fe
SUS; 409L	≤0.03	11.44	≤1.0	≤0.04	≤1.0	≤0.03	≤0.08	≤0.75	At balance

(c)

Mechanical properties
	Tensile strength (MPa)	Yield strength (MPa)	Elongation at fracture (%)
SPCC	316.8	163.8	46
SUS; 409L	494	236	36