烧结金属多孔材料的建模与微观结构表征

Modelling and Microstructural Characterization of Sintered Metallic Porous Materials.

作者信息

Depczynski Wojciech, Kazala Robert, Ludwinek Krzysztof, Jedynak Katarzyna

机构信息

Faculty of Mechatronics and Mechanical Engineering, Kielce University of Technology, Al. Tysiaclecia P.P. 7, Kielce 25-314, Poland.

Faculty of Electrical Engineering, Automatic Control and Computer Science, Kielce University of Technology, Al. Tysiaclecia P.P. 7, Kielce 25-314, Poland.

出版信息

Materials (Basel). 2016 Jul 12;9(7):567. doi: 10.3390/ma9070567.

DOI:10.3390/ma9070567

PMID:28773690

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5456932/

Abstract

This paper presents selected characteristics of the metallic porous materials produced by the sintering of metal powders. The authors focus on materials produced from the iron powder (Fe) of ASC 100.29 and Distaloy SE. ASC 100.29 is formed by atomization and has a characteristic morphology. It consists of spherical particles of different sizes forming agglomerates. Distaloy SE is also based on the sponge-iron. The porous material is prepared using the patented method of sintering the mixture of iron powder ASC 100.29, Fe(III) oxide, Distaloy SE and Fe(III) oxide in the reducing atmosphere of dissociated ammonia. As a result, the materials with open pores of micrometer sizes are obtained. The pores are formed between iron particles bonded by diffusion bridges. The modelling of porous materials containing diffusion bridges that allows for three-dimensional (3D) imaging is presented.

摘要

本文介绍了通过金属粉末烧结制备的金属多孔材料的选定特性。作者重点研究了由ASC 100.29铁粉和Distaloy SE制成的材料。ASC 100.29通过雾化形成，具有独特的形态。它由不同尺寸的球形颗粒形成团聚体组成。Distaloy SE也基于海绵铁。多孔材料采用专利方法制备，即将铁粉ASC 100.29、氧化铁、Distaloy SE和氧化铁的混合物在离解氨的还原气氛中烧结。结果，获得了具有微米尺寸开孔的材料。孔隙在通过扩散桥连接的铁颗粒之间形成。本文还介绍了包含扩散桥的多孔材料的建模，该建模允许进行三维（3D）成像。