Research on Hardening the Surface of Laser and Anti-Tempering Property of Cast Steel Hot Roller

Qiao Yu Xu; Kalbinur Ahmat; Xiang Liu

doi:10.4028/www.scientific.net/AMR.33-37.1359

Paper Titles

Repeatedly Dehiscence and Residual Stress of Liquefied Gas Spherical Vessel
p.1333

Cyclic Oxidation Behavior of Thermal Barrier Coatings Irradiated by High-Intensity Pulsed Ion Beam
p.1337

Evaluation of Optimal Conditions for D-Tube Brazing
p.1345

Phenomenological Mechanism of Transformation Plasticity and the Constitutive Law Coupled with Thermo-Mechanical Plasticity
p.1351

Research on Hardening the Surface of Laser and Anti-Tempering Property of Cast Steel Hot Roller
p.1359

Structure Optimization of a Locomotive Support Vehicle Based on FEM Analysis
p.1365

FEM Analysis and Optimization for Welded Metal Bellows Seal
p.1371

Shape Optimization and Strength Evaluation of Metal Welded Bellows Wave of Mechanical Seal
p.1377

Computer Aided Calculation of Welding Microstructure and Optimization of Welding Technological Parameters
p.1383

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 33-37Research on Hardening the Surface of Laser and...

Research on Hardening the Surface of Laser and Anti-Tempering Property of Cast Steel Hot Roller

Abstract:

Fine martensite could be gained in 70Mn2Mo cast steel roller after solidification by laser treatment. The hardness and depth of hardened zone reached 920 HV (about 65HRC) and 0.6mm respectively. After tempered in high temperature, the depth of hardened zone whose hardness was maintained above 430HV was 0.4mm. These results showed the better anti-tempering property and the higher hardness and hardened depth compared with water quenching and implied the greater applied potentiality of laser strengthening.