Effect of Nitriding Current Density on the Surface Properties and Crystallite Size of Pulsed Plasma-Nitrided AISI 316L
Effect of Nitriding Current Density on the Surface Properties and Crystallite Size of Pulsed Plasma-Nitrided AISI 316L作者机构：Corporación Mexicana de Investigación en Materiales S.A. de C.V.-Cátedras-CONACyT Saltillo México Centro de Investigación y Estudios Avanzados del IPN Saltillo México GMyPQ Instituto de Investigaciones Eléctricas Cuernavaca México Universidad Autónoma de Nuevo León FIME-CIIIA Apodaca México Centro de Investigación en Materiales Avanzados S.C. Chihuahua México
出 版 物：《Journal of Materials Science and Chemical Engineering》 (材料科学与化学工程（英文）)
年 卷 期：2015年第3卷第1期
页 面：45-51页
主 题：Plasma Nitriding Strain Crystallite Size Hardness Wear Stainless
摘 要：In this work, plasma-nitrided AISI 316L stainless steel samples were performed by ion nitriding process under pulsed direct current (DC) discharge at different current densities (1 to 2.5 mA/ cm2). The effect of nitriding current density on the size of crystalline coherently diffracting domains (crystallite size) and strain grade was investigated using X-ray diffraction (XRD) coupled with Williamson-Hall method. Additionally, hardness and wear resistance of the nitriding layer were characterized using a Vickers indenter and pin-on-disk technique respectively. Results showed a decrease in crystallite size from 99 nm for untreated samples to 1.4 nm for samples nitrided at 2.5 mA/cm2 promoted both: an increase in hardness from 226 HV25g to 1245 HV25g, and a considerably decrease in volume loss by wear effect.
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