| Mg65Cu22Ni3Y10非晶合金的非等温晶化行为研究 |
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| 引用本文： | 陈学定,康凯,王晓军,刘国瑞.Mg65Cu22Ni3Y10非晶合金的非等温晶化行为研究[J].兰州理工大学学报,2007,33(2):5-8. |
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| 作者姓名： | 陈学定 康凯 王晓军 刘国瑞 |
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| 作者单位： | 兰州理工大学,甘肃省有色金属新材料省部共建国家重点实验室,甘肃,兰州,730050;兰州理工大学,有色金属合金省部共建教育部重点实验室,甘肃,兰州,730050;兰州理工大学,甘肃省有色金属新材料省部共建国家重点实验室,甘肃,兰州,730050 |
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| 摘 要： | 研究了Mg65Cu22Ni3Y10非晶态合金在连续升温过程中的晶化行为.结果表明,随升温速度的加快,特征温度Tg、Tx、Tp均向高温区移动,其过冷液相区的宽度也逐渐增加,表明该非晶合金的晶化具有明显的动力学效应.利用Kissinger法和Ozawa法分别计算了合金的晶化峰值激活能,所得结果偏差不大.利用Flynn-Wall-Ozawa法得到该合金的晶化激活能E(x)随晶化体积分数x变化的关系曲线.
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| 关 键 词： | 非晶合金 晶化 激活能 Kissinger曲线 Ozawa曲线 |
| 文章编号： | 1673-5196（2007）02-0005-04 |
| 收稿时间： | 2006-06-26 |
| 修稿时间： | 2006年6月26日 |
Study of behavior of non-isothermal crystallization of amorphous alloy Mg65Cu22Ni3Y10 |
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| CHEN Xue-ding,KANG Kai,WANG Xiao-jun,LIU Guo-rui.Study of behavior of non-isothermal crystallization of amorphous alloy Mg65Cu22Ni3Y10[J].Journal of Lanzhou University of Technology,2007,33(2):5-8. |
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| Authors: | CHEN Xue-ding KANG Kai WANG Xiao-jun LIU Guo-rui |
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| Abstract: | The crystallized behavior of amorphous alloy Mg65Cu22Ni3Y10 during continuous heating was investigated.The result showed that,with increasing of heating rates,the characteristic temperatures(Tg,Tx and Tp) shifted to high temperature region,and the supercooled liquid region increased.It was obvious that this amorphous alloy had a dynamic effect.Using Kissinger and Ozawa plots,the activation crystallization energy could be evaluated,resulting in a small deviation between them.Using the Flynn-Wall-Ozawa method,the relationship between the activation crystallization energy E(x) and the crystallized volume fraction x during continuous heating of amorphous alloy Mg65Cu22Ni3Y10 could be obtained. |
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| Keywords: | amorphous alloy crystallization activation energy Kissinger plots Ozawa plots |
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