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用于涂层的梯度硬质合金基体的制备方法与梯度形成机理
引用本文:羊建高,王海兵,刘咏.用于涂层的梯度硬质合金基体的制备方法与梯度形成机理[J].粉末冶金技术,2003,21(5):295-299.
作者姓名:羊建高  王海兵  刘咏
作者单位:1. 中南大学粉末冶金国家重点实验室,长沙,410083;四川自贡硬质合金有限责任公司,自贡,643011
2. 中南大学粉末冶金国家重点实验室,长沙,410083
摘    要:综述了目前国内外梯度硬质合金涂层基体的发展现状及其制备方法,对梯度硬质合金涂层基体的烧结过程热力学、梯度硬质合金涂层基体制备过程中重要的工艺参数以及梯度形成机理进行了详细讨论。

关 键 词:梯度硬质合金  热力学  梯度烧结  扩散  烧结气氛  涂层  工艺参数
修稿时间:2003年6月27日

Fabrication methods and formation mechanism of surface gradient zone of cemented carbides
Yang Jiangao ,Wang Haibing ,Liu Yong ,.Fabrication methods and formation mechanism of surface gradient zone of cemented carbides[J].Powder Metallurgy Technology,2003,21(5):295-299.
Authors:Yang Jiangao    Wang Haibing  Liu Yong  
Affiliation:Yang Jiangao 1),2)*,Wang Haibing 1),Liu Yong 1),2) 1)
Abstract:The development, fabrication methods of gradient cemented carbides and several crucial problems which are encountered during the sintering of the gradient cemented carbides and cermets were summarized in this paper. The thermodynamics and the formation mechanism of the gradient structure of the cemented carbides were also discussed in detail. Finally, some aspects in the investigation and production of the gradient cemented carbides and cermets which deserve special attention were pointed out.
Keywords:gradient cemented carbides  thermodynamics  gradient sintering  diffusion  sintering atmosphere
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