Zhou Wen, Ge Maozhong, Wang Taiming, Xiang Jianyun. Effect of Laser Shock Peening on Surface Integrity of GH3039 Superalloys[J]. Laser & Optoelectronics Progress, 2021, 58(3): 3140011
- Laser & Optoelectronics Progress
- Vol. 58, Issue 3, 3140011 (2021)
Fig. 1. Surface 3D morphologies under different conditions.(a) Without LSP； (b) 1 impact； (c) 2 impacts； (d) 3 impacts
Fig. 2. Measurement results of surface roughness under different numbers of impacts
Fig. 3. Microhardness along depth direction of GH3039 superalloy under different numbers of impacts
Fig. 4. Residual stress distribution along depth direction of GH3039 superalloy under different numbers of impacts
Fig. 5. Microstructure of GH3039 superalloy and local magnification under different numbers of impacts.(a)(b) Without LSP; (c)(d) 1 impact; (e)(f) 2 impacts; (g)(h) 3 impacts
Fig. 6. XRD patterns of GH3039 superalloy and local magnification under different numbers of impacts.(a) XRD patterns; (b) local magnification
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Table 1. Chemical compositions of GH3039 superalloy (mass fraction, %)
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Table 2. Mechanical properties of GH3039 at room temperature
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Table 3. Technological parameters used for laser shock peening
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Table 4. Technological parameters for electro-polishing experiment
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Table 5. Surface residual stress of GH3039 superalloy under different numbers of impacts
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Table 6. Full widths at half maximum of diffraction peaks in 43.6°?44.6° range under different numbers of impacts
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