Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第11卷    第z2期    总第100期    2001年11月

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文章编号:1004-0609(2001)S2-0135-04
稀土La和Y在FeCrAl合金中的存在形式
陈 颖, 聂祚仁, 周美玲, 左铁镛

(北京工业大学 材料科学与工程学院,
教育部新型功能材料重点实验室, 北京 100022
)

摘 要: 采用真空感应熔炼的方法制备了稀土质量分数为0.15%的FeCr20Al5-La和FeCr20Al5-Y合金,经由锻造、热轧、 冷轧等工序,最终制得厚度为60μm的合金箔材,通过TEM和EDAX能谱分析方法研究了稀土元素在合金中的存在形式。实验结果表明:制备的FeCrAl-RE合金中稀土La主要以单质La和少量固溶的形式存在,稀土Y则主要有Fe23Y6、单质Y和少量固溶等存在形式。

 

关键字: 稀土; La; Y; FeCrAl

Form of rare earth elements of
La and Y in FeCrAl-RE alloys
CHEN Ying, NIE Zuo-ren, ZHOU Mei-ling, ZUO Tie-yong

The Key Laboratory of Advanced Functional Materials,
Ministry of Education, School of Materials Science and Engineering,
Beijing Polytechnic University, Beijing 100022, P.R.China

Abstract:FeCr20Al5-La and FeCr20Al5-Y alloys added with rare earth metal of mass fraction 0.15% were prepared in a vacuum induction furnace. The ingots were rolled to foils with a thickness of 60μm through forging, hot rolling and cold rolling. TEM and EDAX were used to research the form of the rare earth elements of La and Y in as-prepared alloys. The results suggest that metal La and a small quantity of solid solution of La be the most form of La in as-prepared FeCr20Al5-La alloy, and Fe23Y6 compound, metal Y as well as a small quantity of solid solution of Y be the most form of Y in as-prepared FeCr20Al5-Y alloy.

 

Key words: rare earth; La; Y; FeCrAl

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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