Zhen Yang, Xiangfang Fan, Changjun Qiu, Yong Li, Ning Liu. Microstructure and Properties of 40CrNiMoA Steel Surface After Laser Quenching[J]. Laser & Optoelectronics Progress, 2020, 57(1): 011405
- Laser & Optoelectronics Progress
- Vol. 57, Issue 1, 011405 (2020)
Fig. 1. Cross-sectional morphology of laser-quenched 40CrNiMoA steel. (a) Photograph of low-power stereo microscope; (b) photograph of high-power stereo microscope
Fig. 2. Microstructures of substrate surface and phase-transformation hardening zone after laser-quenching. (a) Substrate; (b) phase-transformation hardening zone
Fig. 3. Microhardness distribution of cross section of laser quenched specimen
Fig. 4. Friction coefficient as a function of time
Fig. 5. Morphologies of surface after wear. (a) Substrate; (b) laser-quenched sample
Fig. 6. Electrochemical corrosion curves of different samples
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Table 1. Chemical compositions of 40CrNiMoA steel
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Table 2. Loss of weight and average friction coefficient of sample
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