制造工艺对80W-20Re重质烧结体结构的影响

Influence of Manufacturing Technology on the Structure of 80W-20Re Heavy Sinters.

作者信息

Majewski Tomasz, Durejko Tomasz, Urbaniak Wiesław, Petelska Aneta D, Łazińska Magdalena, Zasada Dariusz, Woźniak Ryszard

机构信息

Faculty of Mechatronics and Aviation of MUT, Military University of Technology, Kaliskiego 2, 01-489 Warsaw, Poland.

Faculty of New Technologies and Chemistry of MUT, Military University of Technology, Kaliskiego 2, 01-489 Warsaw, Poland.

出版信息

Materials (Basel). 2019 Nov 29;12(23):3965. doi: 10.3390/ma12233965.

DOI:10.3390/ma12233965

PMID:31795402

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6926816/

Abstract

Preliminary measurement results of 80W-20Re heavy sinters are presented in this paper. Tested samples were taken from three different technology processes, i.e., resistance sintering (RS), pulse plasma sintering (PPS), and conventional sintering in a vacuum furnace. In the first two cases, the obtained sinters were of similar usable properties (porosity and microhardness), while for vacuum sintering, the material with high porosity was obtained. At the same time, it was found that sintering with the use of electric current (RS, PPS) generates microstructures with highly elongated grains.

摘要

本文介绍了80W-20Re重烧结体的初步测量结果。测试样品取自三种不同的工艺过程，即电阻烧结（RS）、脉冲等离子烧结（PPS）和真空炉中的传统烧结。在前两种情况下，所获得的烧结体具有相似的可用性能（孔隙率和显微硬度），而对于真空烧结，获得了高孔隙率的材料。同时，发现使用电流进行烧结（RS、PPS）会产生具有高度拉长晶粒的微观结构。