Yuequn Fu

University of Oslo

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Jianyang Wu

Xiamen University

Jianying He

Fudan University

Zhisen Zhang

Xiamen University

Zhiliang Zhang

Norwegian University of Science and Technology

Qiao Shi

Xiamen University

Yan‐Wen Lin

Xiamen University

Senbo Xiao

Norwegian University of Science and Technology

Yongchao Hao

Xiamen University

Ke Xu

Chinese University of Hong Kong

Siqi Liu

North China Electric Power University

Cooperative Institutions

Chinese Academy of Sciences

Norwegian University of Science and Technology

Xiamen University

University of Chinese Academy of Sciences

China University of Petroleum, Beijing

Zhejiang University

China University of Mining and Technology

National University of Singapore

Ningbo Institute of Industrial Technology

China University of Petroleum, East China

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Thermal conductivity of fivefold twinned silicon-germanium heteronanowires

Physical Chemistry Chemical Physics (2023)

Ziyue Zhou Jincheng Zeng Zixuan Song Yan‐Wen Lin Qiao Shi

The thermal transport properties of five-fold twinned (5FT) germanium–silicon (Ge–Si) heteronanowires (h-NWs) with varying cross-sectional areas, germanium (Ge) domain ratios and heterostructural patterns are investigated using homogeneous nonequilibrium molecular dynamics (HNEMD) simulations.

10.1039/d3cp02926c

Cite

Citations (1)

A Comparative Study on Nanoscale Mechanical Properties of Crmnfeconi High-Entropy Alloys Fabricated by Casting and Additive Manufacturing

Siqi Liu Di Wan Shuai Guan Yuequn Fu Zhiliang Zhang

High-Entropy Alloys

10.2139/ssrn.4865629

Cite

Citations (0)

Nanoscale creep behavior and its size dependency of a Zr-based bulk metallic glass manufactured by selective laser melting

Materials & Design (2022)

Siqi Liu Zexin Chang Yuequn Fu Yuyu Liu Meichao Lin

Nanoscale creep behaviors of metallic glasses (MGs) have gathered considerable interests in recent years, owing to their distinct atomistic mechanisms of plasticity. Additive manufacturing (AM) is a burgeoning technique for manufacturing MGs, the nanoscale creep characteristics and creep mechanism of the AM-ed MGs, however, remain ambiguous. In this work, the nanoscale creep behavior and creep size effect of a selective laser melted (SLM-ed) Zr-based MG were investigated by using nanoindentation. The creep stress exponent (n) and shear transformation zone (STZ) volume, as the indicators of the creep mechanism, were estimated. The n values are in the range of 2–3, and STZ volumes are around 2 nm3. The creep resistance of the MG was found to decrease with the increasing applied peak loads. A potential mechanism for this creep size effect was revealed: the smaller of the STZ volume, as well as the greater ratio of plastic flow under the higher maximum load, are responsible for the decreasing tendency of creep resistance. This research gives a comprehensive understanding of the atomistic mechanisms in the AM-ed MG during the nanoscale creep deformation process and can serve as a reference for improving the plasticity and further engineering applications.

Deformation mechanism

Diffusion creep

10.1016/j.matdes.2022.110723

Cite

Citations (13)

An Asymptotic Analysis of the Period-Doubling Secondary Bifurcation in a Film/Substrate Bilayer

SIAM Journal on Applied Mathematics (2015)

Yuequn Fu Zhanhu Cai

It has previously been observed experimentally and simulated numerically that when a thin film bonded to a much softer substrate is subjected to a uni-axial compression parallel to the interface, the initial buckled pattern will suffer a secondary bifurcation that doubles the period of the original pattern when the compressive strain reaches a critical value. This period-doubling phenomenon is analyzed in this paper using an asymptotically self-consistent approach based on the exact theory of nonlinear elasticity. The predicted critical strain based on a four-term expansion shows good agreement with that obtained using fully numerical simulations, and it is demonstrated that four is the minimum number of terms that should be included in order to give realistic predications. Although our illustrative calculations are conducted for neo-Hookean materials, the proposed approach can deal with any material models and can be extended to higher orders.

Elasticity

10.1137/15m1027103

Cite

Citations (29)