文章信息/Info

Title:

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

作者:

 豆志河、張廷安

多金屬共生礦生態化冶金教育部重點實驗室 東北大學

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

關鍵詞:

特殊冶金; 自蔓延冶金; 超細粉體; 鈦基合金; 難混溶合金; 應用現狀; 研究進展

DOI:

10.7502/j.issn.1674-3962.2016.08.06

文獻標志碼:

A

摘要:

隨著現代技術的不斷發展和學科間的交叉融合以及外場技術在冶金過程中的應用，形成了一門新的冶金交叉學科——“特殊冶金”。“自蔓延冶金”是特殊冶金學科分支的重要研究領域之一，自蔓延冶金利用反應體系自身快速釋放的化學反應熱可快速形成一個超高瞬變溫場，從而實現了對高熔點金屬和化合物的快速、高效制備。本文系統論述了高熔點超細金屬粉體、超細硼化物陶瓷粉體的生產、應用現狀以及自蔓延冶金在高熔點超細金屬粉體、超細硼化物陶瓷粉體制備方面的最新研究成果；目前鈦合金、銅鉻難混溶合金的應用現狀及其制備過程中存在著生產成本高、工藝流程長、操作復雜等缺點，以及基于鋁熱還原多級深度還原法直接鈦基合金和銅鉻難混溶合金的最新研究進展。

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.