Nanoindentation creep behavior of electrodeposited Ni-P nanoglass films

被引：20

作者：

Guo, Chunyu ^{[1
]}

Fang, Yini ^{[1
]}

Chen, Fei ^{[1
]}

Feng, Tao ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Herbert Gleiter Inst Nanosci, Nanjing 210094, Jiangsu, Peoples R China

来源：

INTERMETALLICS | 2019年 / 110卷

基金：

中国国家自然科学基金;

关键词：

Ni-P; Nanoglass; Creep; Nanoindentation; Free volume; ATOMIC-STRUCTURE; DEFORMATION; STABILITY; GLASSES;

D O I：

10.1016/j.intermet.2019.106480

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this work, the nanoindentation creep behavior of electrodeposited Ni-P nanoglass films was investigated at room temperature with the constant load method. The Ni-P nanoglass films exhibit a smaller stress exponent, more obvious creep deformation and faster creep rate comparing to the traditional melt-quenched Ni-P metallic glass with identical chemical composition. The pronounced creep plasticity of Ni-P nanoglass films is attributed to its initial excess free volume and smaller "shear transformation zone" (STZ) volume during deformation. The creep behavior is a good starting point to pry about the relationship between the microstructure and mechanical properties of nanoglass.

引用

页数：6

共 39 条

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