Microstructure and Gd-rich phase evolution of as-cast AZ31-xGd magnesium alloys during semi-solid isothermal heat treatment

Chu, Chenliang; Wu, Xiaoquan; Qiu, Shuicai; Tang, Binbing; Yin, Zhixiang; Yan, Hong; Luo, Cheng; Hu, Zhi

doi:10.1007/s11771-020-4504-x

Cited by 12 publications

(2 citation statements)

References 38 publications

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“…Magnesium alloys are widely used in lightweight engineering because of their excellent properties [1,2]. However, due to its poor temperature sensitivity and low-temperature plasticity, repeated reheating and multi-pass reciprocating rolling are required in blooming rolling process, and serious edge cracks are very easy to appear [3,4,5], as shown in Figure 1, which is more prominent in large reduction rolling.…”

Section: Introductionmentioning

confidence: 99%

Effect of casting and rolling process parameters on solidification welding line of magnesium alloy

Lai

Zhou

Guo

2022

J min metall B Metall

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Process of horizontal twin roll casting magnesium alloy was analyzed by numerical simulation. Taking solidification welding line in cast rolling area as research object, the characteristic change of solidification welding line caused by casting rolling temperature, casting rolling speed and roll heat transfer capacity and its influence on the forming process of casting rolling area were analyzed. The results show that increasing casting temperature, casting speed or reducing heat transfer capacity of roll can make solidification welding line shift to exit of casting rolling zone. Increasing casting temperature and casting speed will increase difference between middle and edge of the solidification welding line along casting direction. And heat distribution of whole slab is more uniform. However, effect of improving heat transfer capacity of roll is completely opposite. According to this, optimum process parameters of casting and rolling magnesium alloy with plate thickness of 6 mm are put forward to reduce probability of edge crack.

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Section: Introductionmentioning

confidence: 99%

Effect of casting and rolling process parameters on solidification welding line of magnesium alloy

Lai

Zhou

Guo

2022

J min metall B Metall

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“…[8] As a highly electronegative metal, Mg can gradually degrade in the human physiological environment, thereby avoiding second surgical resection. [9,10] However, Mg alloys are also well known for their too fast degradation which may result in premature failure after implantation. [11][12][13] Consequently, it has long been a research hotspot to improve the biodegradation resistance of Mg alloys.Alloying has been recognized as a common method for slowing down the degradation of Mg alloys.…”

mentioning

confidence: 99%

A Continuous MgF₂ Network Structure Encapsulated Mg Alloy Prepared by Selective Laser Melting for Enhanced Biodegradation Resistance

et al. 2021

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As revolutionary bone implant materials, Mg alloys have gained extensive attention because of their biodegradability, good biocompatibility, and mechanical properties. [1][2][3][4][5][6] Mg is one of the most important divalent ions in the formation of bioapatite and a key factor in bone metabolism. [7] Moreover, it has a similar elastic modulus to the natural bone, which is beneficial for reducing the stress shielding effect. [8] As a highly electronegative metal, Mg can gradually degrade in the human physiological environment, thereby avoiding second surgical resection. [9,10] However, Mg alloys are also well known for their too fast degradation which may result in premature failure after implantation. [11][12][13] Consequently, it has long been a research hotspot to improve the biodegradation resistance of Mg alloys.Alloying has been recognized as a common method for slowing down the degradation of Mg alloys. Soo-Min et al. fabricated extruded Mg─Al─Ca─Y alloy by alloying Y and the corrosion resistance of the alloy in NaCl solution was improved owing to the increased corrosion potential. [14] However, the improvement always compromises with the type and concentration of the alloying element due to the potential biosafety problem and/or galvanic corrosion. In addition, coating is one of the most effective ways to prevent corrosion. Gray et al. and Chen et al. successively summarized the advances in protective coatings and corrosion-resistant

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Failure prediction from crack evolution and acoustic emission characteristics of coal-rock sandwich composite samples under uniaxial compression

Tan

Liu

et al. 2022

Bull Eng Geol Environ

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Microstructure and Gd-rich phase evolution of as-cast AZ31-xGd magnesium alloys during semi-solid isothermal heat treatment

Cited by 12 publications

References 38 publications

Effect of casting and rolling process parameters on solidification welding line of magnesium alloy

Effect of casting and rolling process parameters on solidification welding line of magnesium alloy

A Continuous MgF₂ Network Structure Encapsulated Mg Alloy Prepared by Selective Laser Melting for Enhanced Biodegradation Resistance

Failure prediction from crack evolution and acoustic emission characteristics of coal-rock sandwich composite samples under uniaxial compression

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Microstructure and Gd-rich phase evolution of as-cast AZ31-xGd magnesium alloys during semi-solid isothermal heat treatment

Cited by 12 publications

References 38 publications

Effect of casting and rolling process parameters on solidification welding line of magnesium alloy

Effect of casting and rolling process parameters on solidification welding line of magnesium alloy

A Continuous MgF2 Network Structure Encapsulated Mg Alloy Prepared by Selective Laser Melting for Enhanced Biodegradation Resistance

Failure prediction from crack evolution and acoustic emission characteristics of coal-rock sandwich composite samples under uniaxial compression

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A Continuous MgF₂ Network Structure Encapsulated Mg Alloy Prepared by Selective Laser Melting for Enhanced Biodegradation Resistance