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Ti對鑄態(tài)AB5型合金微觀結構與性能的影響
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TG139.7

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Effect of Ti on the Microstructure and Properties of the AB_5-type Cast Alloy
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    摘要:

    研究了鑄態(tài)ＭｌＮｉ３．８Ｃｏ０．６Ｍｎ０．５５Ｔｉ０．０５合金的電化學及其顯微結構。結果表明，該合金有較好的初始活化性能和較高的低倍率放電容量，但高倍率放電能力和放電電壓特性較差，循環(huán)穩(wěn)定性也不甚理想。Ｘ射線衍射，掃描電鏡及能譜分析表明：合金中存在第二甚至第三物相，主要為Ｔｉ（ＮｉＣｏＭｎ）相。該相有加快合金粉化速度，降低

    Abstract:

    The electrochemical and microstructural properties of cast MlNi3. 8C0. 6Mn0.55Ti0.05 have been investigated in detail. The results show that the initial activation and the low-rate discharge capacity are promising, but the high-rate discharge capacity and the discharge voltage plateau are to be improved for this alloy. Segregation, mainly Ti(NiCoMn),was detected using in situ X-ray diffraction, scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDAX). Ti (NiCoMn) segregation makes the alloy easy to pulverize, and consequently decrease the cycle stability of the alloy. The segregation should be avoided to make the full use of Ti.

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李傳健 王新林. Ti對鑄態(tài)AB5型合金微觀結構與性能的影響[J].稀有金屬材料與工程,1998,(6):352~355.[Li Chuanjian, Wang Xinlin, Wang Chongyu. Effect of Ti on the Microstructure and Properties of the AB_5-type Cast Alloy[J]. Rare Metal Materials and Engineering,1998,(6):352~355.]
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