Effect of strain rate on the mechanical properties of magnesium alloy AMX602

Shen, Jianghua; Kondoh, Katsuyoshi; Jones, Tyrone L.; Mathaudhu, Suveen; Kecskes, Laszlo J.; Wei, Q.

doi:10.1016/j.msea.2015.10.022

Cited by 43 publications

(6 citation statements)

References 69 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hence, an unexpected enhancement of yield strength under TD compression at a higher strain rate appears. A similar enhancement of yield strength for the twinning-dominated deformation condition was also reported by Shen et al [24]. The mechanical properties of materials are closely related to their deformation modes [25][26][27].…”

Section: Resultssupporting

confidence: 85%

Strain Rate Dependence of Twinning Behavior in AZ31 Mg Alloys

Xu,

Guan,

Zhao

et al. 2023

Metals

View full text Add to dashboard Cite

This study investigates the impact of strain rate on the twinning process (i.e., twin nucleation, twin propagation, and twin growth) and associated mechanical behavior during compression along the normal direction (ND) and transverse direction (TD) of a rolled AZ31 Mg plate at a range of strain rates from 0.00005 s−1 to 2500 s−1. The findings reveal that the yield strength is insensitive to strain rates below 0.05 s−1 during both ND and TD compression tests, while at higher strain rates of 2500 s−1, the yield strength increases under both loading conditions. Interestingly, the TD-compressed sample exhibits a larger yield plateau at a strain rate of 2500 s−1, attributed to an increased activation of {101¯2} twins. Further examination of the microstructure reveals that the twinning process is highly dependent on the strain rate. As the strain rate increases, twin nucleation is promoted, leading to a higher twin boundary density. In contrast, at lower strain rates, twin nucleation is restrained, and the external strain is mainly accommodated by twin growth, which results in higher area fractions of twinned regions.

show abstract

Section: Resultssupporting

confidence: 85%

Strain Rate Dependence of Twinning Behavior in AZ31 Mg Alloys

Xu,

Guan,

Zhao

et al. 2023

Metals

View full text Add to dashboard Cite

show abstract

“…where H and K c are the hardness and fracture toughness of the material, respectively. It should be pointed out that material hardness H is strain-rate sensitive and generally increases with strain rate [16,45,[81][82][83][84][85] due to the strain-rate hardening effect. A correlation between hardness and strain rate is expressed in equation (10) [86]…”

Section: Materials Embrittlementmentioning

confidence: 99%

The ‘skin effect’ of subsurface damage distribution in materials subjected to high-speed machining

Zeng

Yin

2019

Int. J. Extrem. Manuf.

View full text Add to dashboard Cite

This paper proposes the 'skin effect' of the machining-induced damage at high strain rates. The paper first reviews the published research work on machining-induced damage and then identifies the governing factors that dominate damage formation mechanisms. Among many influential factors, such as stress-strain field, temperature field, material responses to loading and loading rate, and crack initiation and propagation, strain rate is recognized as a dominant factor that can directly lead to the 'skin effect' of material damage in a loading process. The paper elucidates that material deformation at high strain rates (>10 3 s −1 ) leads to the embrittlement, which in turn contributes to the 'skin effect' of subsurface damage. The paper discusses the 'skin effect' based on the principles of dislocation kinetics and crack initiation and propagation. It provides guidance to predicting the material deformation and damage at a high strain-rate for applications ranging from the armor protection, quarrying, petroleum drilling, and high-speed machining of engineering materials (e.g. ceramics and SiC reinforced aluminum alloys).

show abstract

“…Similar to crack propagation, the evolution of ASB can be divided into three stages: the initiation, propagation, and fracture [8][9][10]. Its formation process is affected by factors such as microstructure, temperature, stress state and deformation mode [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Adiabatic shear behaviour of AZ31 alloy with different grain size under high-strain-rate

Yuqing

Mao

Liu

et al. 2022

Materials Science and Technology

View full text Add to dashboard Cite

The effect of grain size on the adiabatic shear behaviour of AZ31 Mg alloy under high-strain-rate deformation was investigated in the present study. Samples with three types of grain sizes were prepared, and the hat-shaped samples were subjected to the high-strain-rate deformation. The high-strain-rate deformation was conducted at 1600 s–1 by using a split Hopkinson pressure bar at 200°C. The microstructure before and after deformation was observed by optical microscopy and electron backscatter diffraction. The results indicated that the adiabatic shear sensitivity increased with the increase in the grain size. The calculation results indicated that the dynamic recrystallisation grains in the adiabatic shear band were formed by rotational dynamic recrystallisation.

show abstract

Effect of strain rate on the mechanical properties of magnesium alloy AMX602

Cited by 43 publications

References 69 publications

Strain Rate Dependence of Twinning Behavior in AZ31 Mg Alloys

Strain Rate Dependence of Twinning Behavior in AZ31 Mg Alloys

The ‘skin effect’ of subsurface damage distribution in materials subjected to high-speed machining

Adiabatic shear behaviour of AZ31 alloy with different grain size under high-strain-rate

Contact Info

Product

Resources

About