Hostname: page-component-7b7567c8c-fvjsw Total loading time: 0 Render date: 2026-11-15T00:57:44.020Z Has data issue: false hasContentIssue false

Damage behavior of heterogeneous magnesium matrix nanocomposites

Published online by Cambridge University Press:  15 May 2020

Xi Luo
Affiliation:
State Key Laboratory of Traction Power & School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu, Sichuan610031, ChinaApplied Mechanics and Structure Safety Key Laboratory of Sichuan Province, Southwest Jiaotong University, Chengdu, Sichuan610031, China
Xu He
Affiliation:
State Key Laboratory of Traction Power & School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu, Sichuan610031, ChinaApplied Mechanics and Structure Safety Key Laboratory of Sichuan Province, Southwest Jiaotong University, Chengdu, Sichuan610031, China
Jinling Liu*
Affiliation:
State Key Laboratory of Traction Power & School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu, Sichuan610031, ChinaApplied Mechanics and Structure Safety Key Laboratory of Sichuan Province, Southwest Jiaotong University, Chengdu, Sichuan610031, China
Xinxin Zhu
Affiliation:
School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan610031, China
Song Jiang
Affiliation:
School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan610031, China
Ke Zhao
Affiliation:
State Key Laboratory of Traction Power & School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu, Sichuan610031, ChinaApplied Mechanics and Structure Safety Key Laboratory of Sichuan Province, Southwest Jiaotong University, Chengdu, Sichuan610031, China
Linan An
Affiliation:
Department of Materials Science and Engineering, University of Central Florida, Orlando, FL32816, USA
*
Address all correspondence to Jinling Liu at liujinling@swjtu.edu.cn
Get access

Abstract

Heterogeneous magnesium matrix nanocomposites (Hetero-Mg-NCs) exhibited excellent strength–toughness synergy, but their damage behavior and toughness mechanism lacked of investigation. Here, atomic force microscopy was first employed to characterize the microstructure evolution and damage behavior of the Hetero-Mg-NCs after indentation. The heterogeneous structure comprised of pure Mg areas (soft phase) and Mg nanocomposite areas (hard phase) was revealed by the electrostatic force microscopy. Furthermore, the surface morphology and cracks of the deformed area were investigated with high resolution. The results indicated the soft phase undertook most of the deformation and played an important role in capturing and blunting the crack.

Information

Type
Research Letters
Copyright
Copyright © Materials Research Society, 2020

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable