Laser & Optoelectronics Progress, Volume. 57, Issue 3, 031402(2020)
Microstructure and Corrosion Behaviors of 316L Coating Fabricated by Laser Cladding
Fig. 1. Surface of 316L coating when energy density is less than or equal to 19 J·mm-2
Fig. 2. Microstructures of 316L coating. (a) Cross-sectional morphology; (b) microstructure of cellular crystal; (b) microstructure of columnar crystal; (d) microstructure of overlapping zone
Fig. 3. Relationship between hardness and energy density of 316L coating and schematic of microstructures. (a) Hardness of coating under different energy densities; (b)-(d) microstructures under energy densities of 19, 28, and 44 J·mm-2, respectively
Fig. 6. Corrosion morphologies of substrate and 316L coating after suffering acid salt spray tests with different time. (a) Substrate after 16 h; (b) 316L coating after 16 h; (c) 316L coating after 96 h; (d) 316L coating after 350 h
Fig. 7. Micro corrosion morphologies of 316L coating after suffering acid salt spray for 350 h. (a) 100×; (b) 500×
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Peng Liu, Zhikai Chen, Quanming Jin, Qinghai Zhu. Microstructure and Corrosion Behaviors of 316L Coating Fabricated by Laser Cladding[J]. Laser & Optoelectronics Progress, 2020, 57(3): 031402
Category: Lasers and Laser Optics
Received: May. 29, 2019
Accepted: Jul. 25, 2019
Published Online: Feb. 17, 2020
The Author Email: Chen Zhikai (chenzhikai2004@126.com)