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 percent.
Reference:
Van Rooyen, C, Burger, H, Theron, M and Doubell, P. 2010. In-situ crack repair by laser cladding. CSIR 3rd Biennial Conference: Science Real and Relevant, CSIR International Convention Centre, Pretoria, 30 August-1 September 2010, pp 5
Van Rooyen, C., Burger, H., Theron, M., & Doubell, P. (2010). In-situ crack repair by laser cladding. CSIR. http://hdl.handle.net/10204/4536
Van Rooyen, Corney, H Burger, Maritha Theron, and P Doubell. "In-situ crack repair by laser cladding." (2010): http://hdl.handle.net/10204/4536
Van Rooyen C, Burger H, Theron M, Doubell P, In-situ crack repair by laser cladding; CSIR; 2010. http://hdl.handle.net/10204/4536 .
