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Shear Band Evolution under Cyclic Loading and Fatigue Property in Metallic Glasses: A Brief Review
Xiaodi Wang1,2, Shaojie Wu1, Ruitao Qu1,3
1Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China.
Materials (Basel, Switzerland)
|July 2, 2021
Summary
This review focuses on shear bands in metallic glasses (MGs) under cyclic loading. Manipulating microstructure to suppress shear band formation enhances fatigue properties.
Area of Science:
- Materials Science
- Mechanical Engineering
- Metallurgy
Background:
- Fatigue damage and fracture in metallic glasses (MGs) are primarily driven by shear band formation.
- Existing reviews on MG fatigue lack a focused examination of shear band behavior under cyclic loading.
- Understanding shear band evolution is crucial for advancing fatigue mechanisms and properties in MGs.
Purpose of the Study:
- To provide a comprehensive overview of shear band evolution in metallic glasses under cyclic loading.
- To propose strategies for enhancing fatigue properties by controlling shear band formation.
- To identify future research directions in the fatigue behavior of MGs.
Main Methods:
- Literature review summarizing research on shear band formation, propagation, and cracking in MGs under cyclic loading.
- Analysis of microstructural manipulation strategies to suppress shear band development.
- Examination of experimental data on annealing treatment and processing conditions affecting fatigue behavior.
Main Results:
- Shear band formation, propagation, and cracking are key stages in MG fatigue under cyclic loading.
- Microstructural control, including annealing and processing adjustments, can effectively suppress shear band formation.
- Suppression of shear bands leads to enhanced fatigue properties in metallic glasses.
Conclusions:
- Shear band evolution is the dominant factor in metallic glass fatigue.
- Strategic microstructural manipulation offers a viable pathway to improve MG fatigue resistance.
- Further research is needed to fully elucidate fatigue mechanisms and optimize material design.
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