Laser cladding crack repair of austenitic stainless steel vessels subjected to internal water pressure was evaluated. The purpose of this investigation was to develop process parameters for in-situ repair of through-wall cracks in components or vessels which contain water under pressures of up to 2 bar. Successful crack sealing of 4.5 mm and 6.0 mm plate thickness @ 2.0 bar water pressure was achieved under worst case conditions. Positional cladding trials were also performed for 4 mm bead width at various cladding positions. Calculated powder efficiencies ranged between 87% and 93%.
Reference:
Van Rooyen, C, Burger, H and Theron, M. 2009. Laser cladding crack repair of austenitic stainless steel. 5th International WLT-Conference on Lasers in Manufacturing, Munich, Germany, June 2009, pp 125-129
Van Rooyen, C., Burger, H., & Theron, M. (2009). Laser cladding crack repair of austenitic stainless steel. http://hdl.handle.net/10204/3836
Van Rooyen, Corney, H Burger, and Maritha Theron. "Laser cladding crack repair of austenitic stainless steel." (2009): http://hdl.handle.net/10204/3836
Van Rooyen C, Burger H, Theron M, Laser cladding crack repair of austenitic stainless steel; 2009. http://hdl.handle.net/10204/3836 .