孙昊延,王静松,曹立军,薛庆国

• 1:北京科技大学钢铁冶金新技术国家重点实验室
• 2:冶金与生态工程学院

摘要(Abstract)：

通过先对Zr55Ni5Al10Cu30合金熔体施加脉冲电流处理,再利用非真空吸铸法制备出Zr55Ni5Al10Cu30块体非晶合金的方式,研究了电脉冲孕育处理对非晶热稳定性及退火晶化的影响。差分扫描量热(DSC)及X射线衍射(XRD)分析结果表明:经电脉冲孕育处理后Zr55Ni5Al10Cu30块体非晶合金的玻璃转变温度上升,晶化温度降低,过冷液相区变窄,同时玻璃转变激活能和晶化激活能有所减少。电脉冲孕育处理没有改变Zr55Ni5Al10Cu30块体非晶合金退火晶化相演变过程,但提高了非晶退火晶化率。电脉冲孕育处理对Zr55Ni5Al10Cu30块体非晶合金的晶化起到了促进作用。

关键词(KeyWords)： 电脉冲;非晶;退火;晶化

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(50774006);; 高等学校博士学科点专项科研基金资助项目(200800080017)

作者(Author): 孙昊延,王静松,曹立军,薛庆国

DOI: 10.13289/j.issn.1009-6264.2012.09.016

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