EFFECT OF QUENCHING TEMPERATURE ON THE FORMATION AND MAGNETIC-PROPERTIES OF THE FERROMAGNETIC TAU-PHASE IN MN-AL-C ALLOYS

被引：10
作者：
HUANG, JH
KUO, PC
机构：
[1] Institute of Materials Science and Engineering, National Taiwan University, Taipei
来源：
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 1993年 / 20卷 / 03期
关键词：
D O I：
10.1016/0921-5107(93)90242-F
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The phase transformation and the formation of the ferromagnetic tau-phase of carbon-doped Mn-Al alloys were studied by means of differential thermal analysis, observation of the microstructure and magnetic measurements. For 70.8wt.%Mn-29.2wt.%Al alloys, the epsilon-phase exists from 880-degrees-C in carbon-free samples to 790-degrees-C in samples containing 0.6 wt.% carbon. It is found that the martensitic transformation of the carbon-doped Mn-Al alloy shows both isothermal and athermal transformation behavior. The grain size of the carbon-doped Mn-Al magnet decreases as the quenching temperature is decreased, but the coercivity iHc increases.
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收藏
页码：292 / 297
页数：6
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