Effect of Modified Pin Profile and Process Parameters on the Friction Stir Welding of Aluminum Alloy 6061-T6

Table 5

Tensile tests for specimens welded by the SHBH pin profile and base material (BM) specimens.

Nomination test-tool	Specimen ID-section (Figure 5)	Stress at 0.2% plastic strain (MPa)	Ultimate tensile stress (MPa)	dL at break (%)	Fracture localization
C1-M1	1-3	113	146	4.7	HAZ
C1-M1	1-4	118	150	6.2	HAZ
C2-M2	2-3	115	128	3.8	TMAZ
C3-M3	3-2	110	125	3.9	TMAZ
C3-M3	3-3	106	108	4.0	TMAZ
C3-M3	3-4	108	129	6.6	TMAZ
C1-M4	4-2	114	161	10.2	NHAZ
C1-M4	4-4	115	163	10.8	NHAZ
C3-M4	5-2	114	176	10.5	NHAZ
C3-M4	5-4	124	177	9.5	NHAZ
C1-M4	6-2	111	162	11.1	NHAZ
C1-M4	6-4	111	162	11.3	NHAZ
C2-M4	7-2	119	161	8.7	NHAZ
C2-M4	7-3	116	172	5.8	NHAZ
C2-M4	7-4	115	176	9.0	NHAZ
C2-M4	8-2	116	169	4.3	NHAZ
C2-M4	8-3	115	171	9.6	NHAZ
C2-M4	8-4	116	176	10.0	NHAZ
—	BM-1	289	309	14.2	—
—	BM-2	296	316	11.5	—
—	BM-3	286	308	14.2	—