Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

您目前所在的位置:首页 - 期刊简介 - 详细页面


Transactions of Nonferrous Metals Society of China

Vol. 7    No. 1    March 1997

[PDF Download]    [Flash Online]


Guo Zhongcheng; Yang Xianwan; Liu Hongkang

Department of Metallurgy; Kunming University of Science and Technology; Kunming 650093

Abstract:X ray diffraction data showed that the Ni W P SiC composite coatings are amorphous in plating status when their P content surpasses eight percent. The existence of SiC particles has no effect on the structure of the composite and they do not take part in the transition of the structure. The temperature of heat treatment has a considerable effect on the structure of the composite: when it is raised to 300~400 ℃, metastable Ni 5P 2 and stable Ni 3P particles would form and that would lead to precipitation hardening; when temperature increase to 400 ℃, Ni 5P 2 phases would change into Ni 3P phases. Ni 3P, Ni 5P 4, WC and a few γ (FeNi) phases are produced when Ni W P SiC composite deposits are treated through nitrocarburizing. Scanning electron microscopy showed that the distribution of SiC particles in the composite is uniform. The crystalline temperature of the composite is raised to 100 ℃ when the additive is added in the bath.


Key words: electrodeposition Ni W P SiC composite coatings microstructure

ISSN 1004-0609
CN 43-1238/TG

ISSN 1003-6326
CN 43-1239/TG

主管:中国科学技术协会 主办:中国有色金属学会 承办:中南大学
湘ICP备09001153号 版权所有:《中国有色金属学报》编辑部
地 址:湖南省长沙市岳麓山中南大学内 邮编:410083
电 话:0731-88876765,88877197,88830410   传真:0731-88877197   电子邮箱