章星宇,王知鸷,刘懿茵,王东,刘麟

• 1:常州大学机械工程学院
• 2:常州模具先进制造高技术研究重点实验室

摘要(Abstract)：

利用电阻法和差示扫描量热法(DSC)确定了Al_(86)Ni_6Y_(4.5)Co_2La_(1.5)非晶薄带的晶化峰及特征温度值,选择第一晶化和第二晶化之间的温度对合金进行不同时间退火后利用X射线衍射(XRD)以及谢乐方程探索了退火时间对α-Al的形成及长大的影响。结果表明:合金的第一次晶化和第二次晶化分别在525 K和620 K左右,α-Al的析出和长大在第一次晶化之后,淬态核的存在会导致α-Al尺寸的不均匀,在600 K退火2 h时α-Al最为均匀细化,退火4 h后逐渐有脆性金属间化合物析出,确定退火时间为2～3 h最为适宜。

关键词(KeyWords)： 退火时间;铝基非晶;纳米Al;性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51705038);; 江苏省自然科学基金(BK20160279);; 常州模具先进制造高技术研究重点实验室(CM20173001)

作者(Author): 章星宇,王知鸷,刘懿茵,王东,刘麟

DOI: 10.13289/j.issn.1009-6264.2019-0022

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