Effect of temperature on the mechanical behaviour of magnesium alloy AZ91D in the range between −30°C and 250°C

Ahmad, Irfan; Xiao, Jing; Shu, Dong Wei

doi:10.1016/j.ijmecsci.2014.04.010

Cited by 24 publications

(9 citation statements)

References 13 publications

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“…In a research by Ahmad et al in 2014, the effect of temperature on mechanical properties of magnesium alloy was examined in the temperature range of −30°C to 250°C. 17 In this research, impact of temperature on static strain rate was reported to be negligible. Yan et al used CT specimens to investigate and extract mode I fracture toughness of AM60 Mg alloy in the temperature range of −40°C to 35°C and further examined the effect of dynamic strain rate on the fracture toughness.…”

Section: Introductionmentioning

confidence: 66%

“…

η_{p, normalI} = - 2.9384 {(a / w)}^{4} + 6.5977 {(a / w)}^{3} - 6.9136 {(a / w)}^{2} + 3.3419 ((), a / w) + 2.2048 R^{2} = 1,

η_{p, 45} = - 21.822 {(a / w)}^{4} + 37.599 {(a / w)}^{3} - 25.669 {(a / w)}^{2} + 11.224 ((), a / w) - 0.6733 R^{2} = 1,

η_{p, II} = - 7.6684 {(a / w)}^{4} + 14.132 {(a / w)}^{3} - 9.4444 {(a / w)}^{2} + 2.9165 ((), a / w) + 0.3557 R^{2} = 1 .

Another geometry‐dependent parameter required for a butterfly specimen is γ . The general formula for this parameter is presented in Equation . By substituting the extracted plastic work factors, the values of γ for the butterfly specimen were obtained at different loading angles.…”

Section: Resultsmentioning

confidence: 99%

“…parameter is presented in Equation (10). 17,43 By substituting the extracted plastic work factors, the values of γ for the butterfly specimen were obtained at different loading angles. Due to the large volume of the final relationship for γ, it is not mentioned here.…”

Section: Fem Resultsmentioning

confidence: 99%

“…Various research works have investigated the mechanical properties of magnesium alloys at different temperatures. In a research by Ahmad et al in 2014, the effect of temperature on mechanical properties of magnesium alloy was examined in the temperature range of −30°C to 250°C . In this research, impact of temperature on static strain rate was reported to be negligible.…”

Section: Introductionmentioning

confidence: 87%

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Experimental and numerical investigation of the effect of temperature on mixed‐mode fracture behaviour of AM60 Mg alloy

Oskui

Soltani

2019

Fatigue Fract Eng Mat Struct

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The aim of present paper is to experimentally investigate mixed‐mode fracture behaviour of AM60 Mg alloy at low and elevated temperatures. For this purpose, mode I, 45° mixed‐mode, and mode II tests were conducted using a modified version of Arcan device at three different temperatures. An elastic‐plastic finite element model was used to extract necessary geometric parameters. Crack resistance curves (J‐R) and critical J‐integral of the material were extracted. The results indicated that, for all loading modes, maximum critical J‐integral value was observed at ambient temperature and decreased by either increasing or decreasing the temperature. It was observed that effect of temperature on fracture behaviour is much larger at temperatures above 0°C rather than sub‐zero temperatures. By changing the loading angle to go from mode I to mode II, a decreasing trend was observed in the values of critical fracture parameters at all temperatures. Finally, the surfaces were examined using scanning electron microscopy (SEM).

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Section: Introductionmentioning

confidence: 66%

“…

η_{p, normalI} = - 2.9384 {(a / w)}^{4} + 6.5977 {(a / w)}^{3} - 6.9136 {(a / w)}^{2} + 3.3419 ((), a / w) + 2.2048 R^{2} = 1,

η_{p, 45} = - 21.822 {(a / w)}^{4} + 37.599 {(a / w)}^{3} - 25.669 {(a / w)}^{2} + 11.224 ((), a / w) - 0.6733 R^{2} = 1,

η_{p, II} = - 7.6684 {(a / w)}^{4} + 14.132 {(a / w)}^{3} - 9.4444 {(a / w)}^{2} + 2.9165 ((), a / w) + 0.3557 R^{2} = 1 .

Section: Resultsmentioning

confidence: 99%

Section: Fem Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 87%

See 2 more Smart Citations

Experimental and numerical investigation of the effect of temperature on mixed‐mode fracture behaviour of AM60 Mg alloy

Oskui

Soltani

2019

Fatigue Fract Eng Mat Struct

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“…For applications in vehicles, aircraft and armor, materials are often subjected to impact loadings and elevated temperatures. Study on the dynamic behavior of magnesium alloys at wide range of temperatures is thus necessary but only has been done by some researchers [4][5][6][7]. Ishikawa et al [8] examined high temperature compressive properties in AZ31 magnesium alloy over a wide strain rate range from 10 À 3 to 10 3 s À 1 .…”

Section: Introductionmentioning

confidence: 99%

Effect of strain rate and temperature on the mechanical behavior of magnesium nanocomposites

Xiao

Shu

Wang

2014

International Journal of Mechanical Sciences

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Effects of Cold Rolling on Microstructural Evolution and Mechanical Properties of Mg–14Li–1Zn Alloy

Wang

Qiu

et al. 2019

Adv Eng Mater

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Cold rolling is employed to improve mechanical properties of Mg–14Li–1Zn alloy. Microstructural evolution and mechanical properties are investigated. Results show that, as‐cast and as‐homogenized Mg–14Li–1Zn alloy is mainly composed of β phase with trace amount of tiny α phase particles. During tensile test, the discontinuous α phase leads to intergranular fracture, which is a main reason for the low strength and low elongation. After cold rolling, the distribution of α phase becomes much more dispersive. The tensile fractural morphology changes from brittle intergranular fracture to dimple fracture. The sheet with 70% thickness reduction possesses the ultimate tensile strength of 212 MPa, elongation of 9.4%, and microhardness of 60.12 HV. When the total rolling reduction is 90%, the tensile strength decreases slowly to 210 MPa, but the elongation increases sharply to 19.8%. Strengthening mechanisms of the Mg–14Li–1Zn alloy are attributed to strain hardening and grain refinement. Strain hardening plays an important role in the enhancement of strength. Grain refinement and the appropriate distribution of the α(Mg) can obviously improve the plasticity.

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Effect of temperature on the mechanical behaviour of magnesium alloy AZ91D in the range between −30°C and 250°C

Cited by 24 publications

References 13 publications

Experimental and numerical investigation of the effect of temperature on mixed‐mode fracture behaviour of AM60 Mg alloy

Experimental and numerical investigation of the effect of temperature on mixed‐mode fracture behaviour of AM60 Mg alloy

Effect of strain rate and temperature on the mechanical behavior of magnesium nanocomposites

Effects of Cold Rolling on Microstructural Evolution and Mechanical Properties of Mg–14Li–1Zn Alloy

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