Fig. 10

Welding joint section with 6 mm width in USWA6 (a, b) pores formation (c) metal oxide generation (d) connection formation (e, f) void formation with cracks.

Welding joint section with 6 mm width in USWA6 (a, b) pores formation (c) metal oxide generation (d) connection formation (e, f) void formation with cracks.