Improvement of oxidation resistance of arc-melted Mo76Si14B10 by microstructure control upon minor Fe addition

被引：8
作者：
Kumar, N. K. [1 ]
Roy, B. [1 ]
Mitra, R. [1 ]
Das, J. [1 ]
机构：
[1] Indian Inst Technol, Dept Met & Mat Engn, Kharagpur 721302, W Bengal, India
来源：
INTERMETALLICS | 2017年 / 88卷
关键词：
intermetallics (silicides); alloy design; oxidation; microstructure; electron microscopy; Scanning; MO-SI-B; OXIDE SCALE FORMATION; MECHANICAL-PROPERTIES; BEHAVIOR; ALLOYS; COMPOSITES; SYSTEM; PHASE;
D O I：
10.1016/j.intermet.2017.05.004
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：
Addition of Fe refines the microstructure of Mo76-xSi14B10Fex (x = 0, 0.5, 1 at.%) composites containing alpha-Mo, Mo3Si and Mo5SiB2 phases, increases the hardness from 950 Hv (x = 0) to 1031 Hv (x = 1), and improves the oxidation resistance at temperature in the range of 800-1300 degrees C. The hardness of the base alloy substrate decreases only by < 7% than that of as-solidified ingots, indicating good microstructural stability of the composite for high temperature application.
引用
收藏
页码：28 / 30
页数：3
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