The Study of High Temperature Oxidation and Creep Property of Fe-Co-Ni-Cr-Al-Mn (-0.1Mo) High Entropy Alloy
Date Issued
2005
Date
2005
Author(s)
Chuang, Ming-Chu
DOI
zh-TW
Abstract
The recent developments of high-entropy alloys brought the research of conventional metallic materials into brand-new field. High-entropy alloys differ from the other traditional alloys with only two or three major elements. These innovative alloys contain five or more major elements and may change some of the traditional alloy’s concepts radically. A lot of unknown alloys would be developed from this novel alloys concepts; and some of those high-entropy alloys would possess excellent mechanical and physical properties resulting from their special microstructure. These alloys are worth researching by academic and industrial circles.
As already pointed out, the high-entropy alloys of special composition possess nano-structure with some excellent characteristics including superior thermal stability, excellent oxidation resistance and creep strength. These superior characteristics make the development and application of the high-entropy alloys more attractive. In addition, some researches showed that the multi-element high-entropy alloy is practicable on thin-film application. With their mechanical, thermal and magnetic, electric properties, the application field of high-entropy alloys will be broadened.
The novel fields about high-entropy alloy possess highly research value, so high-temperature creep and oxidation tests should be conducted to study the high-entropy alloy containing Fe, Co, Ni, Cr, Al, Mn and Mo seven elements in this study. At first, the microstructure and phases of the high-entropy alloy would be identified and then the high temperature creep and oxidation tests were performed. The change of microstructure at elevated temperature and the oxidation layer would be analyzed. Finally, all kinds of properties of these alloys will be compared with the common high-temperature alloys to realize whether the high-entropy alloy could be used at an elevated temperature .
Subjects
氧化
潛變
顯微結構
High Entropy Alloy
oxidation
creep
Type
thesis
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