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Zr_(65)Al_(7.5)Ni_(10)Cu_(17.5)金属玻璃非均匀塑性变形过程中的自由体积演化 被引量:1

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摘要 利用差示扫描量热法研究了铸态和退火态Zr65Al7.5Ni10Cu17.5金属玻璃在冷轧过程中的自由体积演化.随着塑性变形的进行,自由体积含量先增加,然后于临界应变之上达到饱和,在此过程中材料则始终维持在完全非晶状态.金属玻璃的初始自由体积含量少,变形过程中自由体积增加的速度大,因此不同初始状态的金属玻璃在大塑性变形后自由体积含量彼此接近.剪切带中的自由体积聚合形成纳米孔洞是自由体积在大应变下达到饱和的原因.
出处 《科学通报》 EI CAS CSCD 北大核心 2007年第12期1463-1466,共4页 Chinese Science Bulletin
基金 国家自然科学基金(批准号:50471016 50671066) 教育部留学归国人员基金资助项目
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同被引文献15

  • 1杨元政,李喜峰,仇在宏,赵德强,谢致薇,匡同春,白晓军.等温热处理对Zr_(57)Cu_(15.4)Ni_(12.6)Al_(10)Nb_5块体非晶合金的组织结构与压缩性能的影响[J].稀有金属材料与工程,2006,35(8):1254-1257. 被引量:5
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