Deformation and fracture behaviors of AZ31B Mg alloy at elevated temperature under uniaxial compression

Wang, Jia; Ma, Lifeng; Le, Qichi; Zhi, Chenchen; Liu, Pengtao

doi:10.1016/j.jallcom.2018.12.260

Cited by 89 publications

(18 citation statements)

References 36 publications

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“…Zhi et al [23] indicated that after rolling under high pressure, shear bands composed of a large number of fine grains was formed along the TD and parallel to the RD. Jia et al [24] indicate that when the material rolled at lower speed (7 rpm in this paper, Fig. 3d), the twin was mainly composed of the parallel twin and the intersecting twin and the microstructure had less recrystallization.…”

Section: Microstructurementioning

confidence: 54%

Effect of annealing temperature on corrosion properties of rolled AZ31-Ce magnesium alloy

Ning

Kong

2020

SN Appl. Sci.

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The corrosion properties of rolled AZ31 magnesium alloy addition Ce before and after annealing at different rolling temperatures (200 °C, 250 °C, 300 °C and 350 °C) and the corrosion resistance and surface morphology of different sections of the samples were studied. The results showed that the corrosion rate and weight loss of the plate without annealing were higher than that of the plate after annealing. The corrosion resistance of the transverse direction-normal direction (TD-ND) cross section was the most, and the corrosion pits after annealing were shallower than that of unannealed samples. The low Ce element content can improve the corrosion resistance of magnesium alloy. In addition, the above properties were the best at 200 °C whether annealed or not. Fig. 8 a Area percentage after corroded of each cross section at different temperatures, b schematic diagram of grain size and morphology with different cross sections

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Section: Microstructurementioning

confidence: 54%

Effect of annealing temperature on corrosion properties of rolled AZ31-Ce magnesium alloy

Ning

Kong

2020

SN Appl. Sci.

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“…During the micro-crack propagation process, the interconnection of multiple microcracks inside the copper sheet formed the main crack. These crack edges present jagged arrangement, which is typical of toughness crack expansion [20]. When the crack extended to a certain critical length, a lamellar separation layer was formed between the crack and the copper sheet surface.…”

Section: Effect Of Deformation Rate On Wear Resistance Under Differenmentioning

confidence: 97%

10 Effect of pulse current on micro-hardness and wear performance of cold-rolled T2 copper sheet

Song

Wei

Mu³

et al. 2020

Mater. Res. Express

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The effect of pulse current assisted rolling on the micro-hardness and wear properties of T2 copper sheet was studied. The micro-hardness of copper sheet with pulse current assisted rolling was measured, and the hardness values of the copper sheet at different deformation rates were obtained. The wear performance of rolled copper sheet was tested by friction and wear tester. The results show that compared with traditional cold rolling, with the increase of deformation rate, the micro-hardness of copper sheet with pulse current assisted rolling increased after an initial decrease. The microhardness reaches the minimum value((82.25±2.5)HV0.1) when the rolling deformation rate reaches 65%. The specific wear rate of the copper sheet reached the maximum(0.00176 mm 3 /N·m) when the deformation rate of the copper sheet was 65%. The copper sheet has a smaller specific wear rate by using pulse current assisted rolling, and the oxygen element of the wear debris has a lower content. This indicates that pulse current assisted rolling can improve the wear resistance and oxidation resistance of copper sheet.

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“…With the further increase of the plastic strain at the trough position, dislocation accumulation can promote the occurrence of grain boundary-induced recrystallization, and the accumulated dislocation on the sub-grain boundaries can be gradually absorbed by grain boundary diffusion, etc. [34]. Furthermore, the local stress distribution on the corrugated surface of the AZ31B sheet is inhomogeneous, thus, the grains of the AZ31B sheet are not uniform along RD [35].…”

Section: Interfacial Microstructure and Rolling Simulation Of The Cormentioning

confidence: 99%

Microstructure Characterization and Mechanical Property of Mg/Al Laminated Composite Prepared by the Novel Approach: Corrugated + Flat Rolling (CFR)

Wang

Ren

et al. 2019

Metals

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In this paper, Mg/Al laminated composites were successfully prepared at 400 °C by corrugated + flat rolling (CFR) with reduction ratios of 35% and 25% and subsequent annealing treatments were conducted at 200–350 °C for 30 min. A two-dimensional model was established to analyze the strain distribution during the first corrugated rolling process. Simulation results indicated that severe plastic deformation was formed at trough positions, which included more numerous refined grains than in the peak positions. The interfacial microstructure and mechanical property of the flattened composites along the rolling direction (RD) and the transverse direction (TD) were investigated. The results revealed that longitudinal discontinuous and transverse continuous interfacial intermetallic compounds (IMCs) were observed of the flattened as-rolled sample. Spatial distribution was provided for the grain microstructure along the thickness and rolling direction for AZ31B magnesium alloys of the CFR as-rolled composite. Mechanical property results showed that the longitudinal ultimate tensile strength (UTS) and elongation (EL) of the as-rolled sample reached 255 MPa and 4.14%, respectively. The as-rolled UTS along TD reached 325 MPa, about 30% higher than that along the RD. After heat treatment, the anisotropy of mechanical properties remained. The microstructure evolution and mechanical properties were discussed in detail.

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Deformation and fracture behaviors of AZ31B Mg alloy at elevated temperature under uniaxial compression

Cited by 89 publications

References 36 publications

Effect of annealing temperature on corrosion properties of rolled AZ31-Ce magnesium alloy

Effect of annealing temperature on corrosion properties of rolled AZ31-Ce magnesium alloy

10 Effect of pulse current on micro-hardness and wear performance of cold-rolled T2 copper sheet

Microstructure Characterization and Mechanical Property of Mg/Al Laminated Composite Prepared by the Novel Approach: Corrugated + Flat Rolling (CFR)

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