A study on feasibility of preparation of W-Cr-Si alloys by silicothermic co-reduction and characterization of as cast co-reduced alloy

被引：7

作者：

Paul, Bhaskar ^{[1
]}

Kishor, J. ^{[1
]}

Chatterjee, A. ^{[1
]}

Majumdar, S. ^{[1
]}

Kain, V. ^{[1
]}

Dey, G. K. ^{[1
]}

机构：

[1] BARC, Mat Grp, Bombay, Maharashtra, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 701卷

关键词：

Co-reduction; RMIC; Thermite; SEM; Multiphase; Oxidation; INTERMETALLICS; ROUTE;

D O I：

10.1016/j.jallcom.2017.01.163

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Studies were carried out to prepare W-5Cr-5Si alloys (wt.%) by silicothermic co-reduction route using mixed oxides of tungsten tri-oxide and chromium oxides as reactants and Si as the reducing agent as well as alloying element. Optimum charge composition was found out by carrying out multiple co-reduction experiments for the formation of targeted alloys. The consolidated alloy was produced in a single step using the exothermic nature of the reduction reactions. The as-cast alloys were characterized with respect to chemical composition, phases, microstructure, hardness and oxidation properties. The multiphase alloy was composed of (W, Cr)(5)Si-3 matrix and discontinuous (W, Cr)(ss) phases with a relative volume of about 40%. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：864 / 869

页数：6