Perspective on hetero-deformation induced (HDI) hardening and back stress

By Yuntian Zhu, Xiaolei Wu. Materials Research Letters, 2019

1,353 citations recorded by the source corpus.

ABSTRACT Heterostructured materials have been reported as a new class of materials with superior mechanical properties, which was attributed to the development of back stress. There are numerous reports on back stress theories and measurements with no consensus. Back stress is developed in soft domains to offset the applied stress, making them appear stronger, while forward stress is developed to make hard domains appear weaker. The extra hardening in heterostructured materials is resulted from interactions between back stresses and forward stresses, and should be described as hetero-deformation induced (HDI) hardening and the measured ‘back stress’ should be renamed HDI stress. GRAPHICAL ABSTRACT IMPACT STATEMENT The ‘back stress’ hardening in the literature can be described more accurately as hetero-deformation induced (HDI) hardening and the measured ‘back stress’ should be renamed HDI stress.

Subfields: Materials Chemistry, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/1db9050e53761941e54383952edff58822028e45

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Materials Chemistry

1. Yuntian Zhu
2. Yonghao Zhao
3. Yang Cao
4. Hao Zhou
5. Y. Liu
6. Yanfang Liu
7. J. Wang
8. Z. You

In Mechanical Engineering

1. Yuntian Zhu
2. Yonghao Zhao
3. Yang Cao
4. Hao Zhou
5. Y. Liu
6. Xiaolei Wu
7. R. Valiev
8. Terence G. Langdon

Citations in the corpus

• Critical microstructures and defects in heterostructured materials and their effects on mechanical properties (2020, background): “This hypothesis is consistent with the concept of shear band delocalization in HS materials [15,22,43].”