一种功能梯度镍铝涂层的制备及其硬度

IF 0.8 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materiali in tehnologije Pub Date : 2023-01-25 DOI:10.17222/mit.2022.650

Ningning Li, Lei Xu, Liang Huang, Yuping Tong, Z. Jiang, Keliang Li

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引用次数: 0

摘要

功能梯度镍铝涂层可以提高低碳钢的硬度，使其硬度高，可以适应各种条件。本研究的主要目的是采用镀镍和填充渗铝两步法制备镍铝涂层。采用XRD、SEM和EDS对涂层的物相和形貌进行了表征。随后，使用纳米压痕测试测量Ni-Al涂层的硬度。结果表明:涂层表面铝含量不同导致涂层相不同，主要是Ni2Al3相;镀层相的变化符合Ni-Al二元相图。Ni-Al涂层呈现连续梯度结构和组成。此外，涂层也呈现出连续的梯度变化，这与硬度有关。

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PREPARATION AND HARDNESS OF A FUNCTIONALLY GRADED Ni-Al COATING

A functionally graded Ni-Al coating can improve the hardness of low-carbon steel, which can then adapt to various conditions due to a high hardness. The primary purpose of this research was the preparation of a Ni-Al coating by adopting a two-step method including nickel plating and pack aluminizing. The coating phase and morphology were characterized with XRD, SEM and EDS. Subsequently, the hardness of the Ni-Al coating was measured using a nanoindentation test. The results show that different aluminum contents in the coating surface lead to different coating phases, mainly Ni2Al3. The change in the coating phases conformed to the Ni-Al binary phase diagram. The Ni-Al coating showed a continuous gradient structure and composition. In addition, the coating also showed continuous gradient variation, relating to the hardness.

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来源期刊

Materiali in tehnologije 工程技术-材料科学：综合

CiteScore

1.30

自引率

0.00%

发文量

审稿时长

4-8 weeks

期刊介绍： The journal MATERIALI IN TEHNOLOGIJE/MATERIALS AND TECHNOLOGY is a scientific journal, devoted to original papers and review scientific papers concerned with the areas of fundamental and applied science and technology. Topics of particular interest include metallic materials, inorganic materials, polymers, vacuum technique and lately nanomaterials.