Manufacturing, microstructure and wear resistance of novel hot extruded Fe based metal matrix composites
Manufacturing, microstructure and wear resistance of novel hot extruded Fe based metal matrix composites
复制标题
新型热挤压铁基金属基复合材料的制备、显微组织及耐磨性
DOI：
10.1179/174329008x271664
复制
发表时间：
2008
影响因子：
1.4
通讯作者：
A. Pyzalla
中科院分区：
文献类型：
--
作者：
M. Karlsohn;S. Weber;Alavi S. R. Zaree;S. Müller;W. Theisen;W. Reimers;A. Pyzalla
具有高抗磨料磨损性能的材料受到许多工具应用的高度关注，例如：在采矿业。这些材料通常含有大量嵌入金属基体中的硬陶瓷相，只能通过粉末冶金制造，最常见的是通过热等静压。这里提出了一种通过粉末预烧结和直接热挤压的新制造路线，该路线能够制造含有高达 30% 的电熔碳化钨（FTC、WC/W2C）或碳化钛（TiC）的铁基金属基复合材料。所选择的基体是热作工具钢和冷作工具钢。阐明了制造过程并呈现了形成的微观结构。讨论了新型铁基MMC 的微观结构-性能关系。
Materials with high resistance against abrasive wear are of high interest for many tool applications, e.g. in mining industry. These materials usually contain a large amount of hard ceramic phases embedded in a metallic matrix and can only be manufactured by powder metallurgy, most often via hot isostatic pressing. Here a new manufacturing route via powder presintering and direct hot extrusion is presented, which enabled manufacturing of Fe based metal matrix composites with up to 30% of fused tungsten carbide (FTC, WC/W2C) or titanium carbide (TiC). The matrixes chosen are hot and cold work tool steels. The manufacturing process is elucidated and microstructures formed are presented. The microstructure–property relation of the new Fe based MMC is discussed.