Effects of Laser Multiple Processing on Properties of Heat-Resistant Steel
The heat-resistant steel after aluminized was treated by laser shock processing (LSP) with high power Nd:YAG laser, and then was tensile tested at 400°C. The effects of the high-temperature behavior after LSP were analyzed from residual stress and fracture organization. The results showed that the yield strength and tensile strength of heat-resistant steel after aluminized were improved obviously during the tensile testing at high temperature, and the High-temperature fatigue life of 00Cr12 with composite processing was enhanced vastly. Compared with the LSP, the High-temperature fatigue life of 00Cr12 heat-resistant steel by aluminizing and LSP had a larger increase.
Liangchi Zhang, Chunliang Zhang and Zichen Chen
L. Ruan et al., "Effects of Laser Multiple Processing on Properties of Heat-Resistant Steel", Advanced Materials Research, Vols. 328-330, pp. 364-367, 2011