The Structural and Dynamic Heterogeneities of Ni-P Nanoglass Characterized by Stress-Relaxation

21 Pages Posted: 10 Sep 2019

See all articles by Chaoqun Pei

Chaoqun Pei

Nanjing University of Science and Technology - Herbert Gleiter Institute of Nanoscience

Rui Zhao

Chinese Academy of Sciences (CAS) - Institute of Physics; Chinese Academy of Sciences (CAS)

Yini Fang

Nanjing University of Science and Technology - Herbert Gleiter Institute of Nanoscience

Shangshu Wu

Nanjing University of Science and Technology - Herbert Gleiter Institute of Nanoscience

Zhaotao Cui

Nanjing University of Science and Technology - Herbert Gleiter Institute of Nanoscience

Baoan Sun

Chinese Academy of Sciences (CAS) - Institute of Physics; Chinese Academy of Sciences (CAS) - Songshan Lake Materials Laboratory

Si Lan

Nanjing University of Science and Technology - Herbert Gleiter Institute of Nanoscience

Peng Luo

University of Illinois at Urbana-Champaign - Beckman Institute for Advanced Science and Technology

WeiHua Wang

Chinese Academy of Sciences (CAS) - Institute of Physics; Chinese Academy of Sciences (CAS); Chinese Academy of Sciences (CAS) - Songshan Lake Materials Laboratory

Tao Feng

Nanjing University of Science and Technology - Herbert Gleiter Institute of Nanoscience

Abstract

The method of stress-relaxation is applied to study the structural and dynamic heterogeneities of Ni-P nanoglass (NG) prepared by pulse electro-deposition. We provide direct evidence that the Ni-P NG has more flow units with better plasticity than conventional Ni-P metallic glass (MG) prepared by rapid quenching. Moreover, an anomalous peak is observed in the activation energy spectra of NG at 435 K, which may relate to a hidden polyamorphous phase transition in Ni-P NG. Our study provides insights on the understanding of the discrepancy in structural heterogeneity and dynamic and thermodynamic properties between the NG and MG.

Keywords: stress relaxation, flow units, nanoglass, metallic glass

Suggested Citation

Pei, Chaoqun and Zhao, Rui and Fang, Yini and Wu, Shangshu and Cui, Zhaotao and Sun, Baoan and Lan, Si and Luo, Peng and Wang, WeiHua and Feng, Tao, The Structural and Dynamic Heterogeneities of Ni-P Nanoglass Characterized by Stress-Relaxation. Available at SSRN: https://ssrn.com/abstract=3447510 or http://dx.doi.org/10.2139/ssrn.3447510

Chaoqun Pei

Nanjing University of Science and Technology - Herbert Gleiter Institute of Nanoscience

No.219, Ningliu Road
Nanjing, Jiangsu
China

Rui Zhao

Chinese Academy of Sciences (CAS) - Institute of Physics

Beijing, 100190
China

Chinese Academy of Sciences (CAS)

Building 7, NO. 80 Zhongguancun Road
Beijing, Beijing 100190
China

Yini Fang

Nanjing University of Science and Technology - Herbert Gleiter Institute of Nanoscience

No.219, Ningliu Road
Nanjing, Jiangsu
China

Shangshu Wu

Nanjing University of Science and Technology - Herbert Gleiter Institute of Nanoscience

No.219, Ningliu Road
Nanjing, Jiangsu
China

Zhaotao Cui

Nanjing University of Science and Technology - Herbert Gleiter Institute of Nanoscience

No.219, Ningliu Road
Nanjing, Jiangsu
China

Baoan Sun

Chinese Academy of Sciences (CAS) - Institute of Physics

Beijing, 100190
China

Chinese Academy of Sciences (CAS) - Songshan Lake Materials Laboratory

Dongguan, Guangdong 523808
China

Si Lan

Nanjing University of Science and Technology - Herbert Gleiter Institute of Nanoscience

No.219, Ningliu Road
Nanjing, Jiangsu
China

Peng Luo

University of Illinois at Urbana-Champaign - Beckman Institute for Advanced Science and Technology

601 E John St
Champaign, IL 61820
United States

WeiHua Wang

Chinese Academy of Sciences (CAS) - Institute of Physics

Beijing, 100190
China

Chinese Academy of Sciences (CAS)

Building 7, NO. 80 Zhongguancun Road
Beijing, Beijing 100190
China

Chinese Academy of Sciences (CAS) - Songshan Lake Materials Laboratory

Dongguan, Guangdong 523808
China

Tao Feng (Contact Author)

Nanjing University of Science and Technology - Herbert Gleiter Institute of Nanoscience ( email )

No.219, Ningliu Road
Nanjing, Jiangsu
China

Do you have negative results from your research you’d like to share?

Paper statistics

Downloads
58
Abstract Views
389
Rank
653,722
PlumX Metrics