许雨翔(副教授)

Influence of Ni-addition on mechanical, tribological properties and oxidation resistance of AlCrSiN coatings

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DOI码：10.1016/j.ceramint.2018.11.039

发表刊物：Ceramics International

关键字：Film; AlCrSiN; Mechanical properties; Tribological properties; Oxidation resistance

摘要：AlCrSiN coatings with splendid mechanical and thermal properties have attracted wide attention as excellent alternatives for advanced machining applications. Here, Ni-alloyed AlCrSiN coatings were deposited by cathodic arc evaporation and elaborated with respect to mechanical, tribological and anti-oxidation properties. With the increase of Ni content, multiphase composite structured AlCrSiN-Ni coatings show a sustained decline in hardness, elastic modulus and the ratio of hardness to modulus, which causes the decrease of wear resistance at room temperature and 600 °C. Nevertheless, the addition of Ni effectively enhances the toughness and reduces the friction, especially, at 600 °C, where AlCrSiN, AlCrSiN_Ni5, and AlCrSiN_Ni20 obtained a average friction coefficient of ~0.93, 0.86 and 0.66, respectively. Oxidation kinetics studies at 800 – 1000 °C indicate that Ni-containing coatings have relatively lower activation energies, 173.8 kJ/mol of AlCrSiN_Ni5 and 156.6 kJ/mol of AlCrSiN_Ni20, than 176.5 kJ/mol of AlCrSiN. The faster outward diffusion of Cr in Ni-containing coatings forms a Cr2O3/NiAl2O4 two-layer oxide scale with less protection effect and poor adhesion, leading to inferior oxidation resistance.

合写作者：彭滨,张权,王启民,陈利

第一作者：刘喆人

论文类型：期刊论文

通讯作者：许雨翔

学科门类：工学

一级学科：材料科学与工程

文献类型：J

卷号：45

页面范围：3735-3742

ISSN号：0272-8842

是否译文：否

发表时间：2019-02-15

收录刊物：SCI

发布期刊链接：https://www.sciencedirect.com/science/article/pii/S0272884218331420

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