自蔓延冶金法制备粉体与合金的研究进展<br />-中国材料进展

文章信息/Info

Title:: Research Progresses on the Preparation of Powders and Alloys by SHS-Metallurgy

Author(s):: Dou Zhihe; Zhang Ting-an; Key Laboratory of Ecological Metallurgy of Multi-metal Intergrown Ores of Ministry of Education, School of Materials and Metallurgy, Northeastern University

摘要:: 随着现代技术的不断发展和学科间的交叉融合以及外场技术在冶金过程中的应用，形成了一门新的冶金交叉学科——“特殊冶金”。“自蔓延冶金”是特殊冶金学科分支的重要研究领域之一，自蔓延冶金利用反应体系自身快速释放的化学反应热可快速形成一个超高瞬变温场，从而实现了对高熔点金属和化合物的快速、高效制备。本文系统论述了高熔点超细金属粉体、超细硼化物陶瓷粉体的生产、应用现状以及自蔓延冶金在高熔点超细金属粉体、超细硼化物陶瓷粉体制备方面的最新研究成果；目前钛合金、铜铬难混溶合金的应用现状及其制备过程中存在着生产成本高、工艺流程长、操作复杂等缺点，以及基于铝热还原多级深度还原法直接钛基合金和铜铬难混溶合金的最新研究进展。

Abstract:: With the continuous development of modern technology, the intersection between different disciplines and the application of outfield technology in metallurgical process, a new interdisciplinary subject, special metallurgy, was formed. Self-propagating high-temperature synthesis (SHS)metallurgy, as a branch of special metallurgy, is one of the most important research field. By the immediate release of chemical reaction heat of the reaction system itself , SHS-Metallurgy method can quickly form an ultra high transient temperature field, thus realizing fast and efficient preparation of the high melting point metals and compounds. This paper systematically discusses the production and present application situation of the high melting point ultrafine metal powder, ultra-fine boride ceramic powder and the latest research results on SHS-Metallurgy in the preparation of the high melting point ultrafine metal powder; the production and present application situation of titanium-based alloys and copper-chromium immiscible alloy, its preparation disadvantages such as high cost, long and complex process, and the latest research results on aluminothermic reduction-multistage depth reduction in the direct preparation of titanium-based alloys and copper-chromium immiscible alloy.