Chinese Journal of Lasers, Volume. 47, Issue 5, 0502010(2020)
Microstructure and Wear Resistance of Carbon Fibers Reinforced 316L Stainless Steel Prepared Using Laser Cladding
Carbon fibers (CFs) reinforced 316L stainless steels are prepared using laser cladding (LC) and the effects of scanning speed on the microstructure, microhardness, and wear resistance of carbon fibers reinforced 316L stainless steel are investigated in this study. Results show that the laser cladded 316L stainless steel without carbon fibers is composed of γ-Fe phase, the phases of the laser cladding carbon fibers reinforced 316L stainless are mainly composed of M23C6, γ-Fe and α-Fe, and M23C6 homogeneously distributes between γ-Fe and α-Fe dendrites. As the scanning speed increases, the distance between the dendrite arms decreases, while the microhardness first increases and then decreases. As a result, the wear resistance first enhances and then decreases. When the scanning speed is 12 mm/s, the laser cladding carbon fibers reinforced 316L stainless steel exhibits the highest wear resistance, and its wear resistance increases by approximately 25.3% compared with that of the laser cladded 316L stainless steel without carbon fibers.
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Songya He, Xiaodong Liu, Shuzhen Zhao, Jianbo Jin, Shengfeng Zhou. Microstructure and Wear Resistance of Carbon Fibers Reinforced 316L Stainless Steel Prepared Using Laser Cladding[J]. Chinese Journal of Lasers, 2020, 47(5): 0502010
Category: laser manufacturing
Received: Nov. 27, 2019
Accepted: Jan. 10, 2020
Published Online: May. 12, 2020
The Author Email: Zhou Shengfeng (zhousf1228@163.com)