Microstructural Evolution and Properties of a Hot Extruded and HPT‐Processed Resorbable Magnesium WE43 Alloy

Liu, Dexue X.; Pang, Xin; Li, Denglu L.; Guo, Changliang; Wongsa-Ngam, Jittraporn; Langdon, Terence G.; Meyers, Marc A.

doi:10.1002/adem.201600698

Cited by 12 publications

(12 citation statements)

References 42 publications

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“…Liu et al (Liu et al, 2017) found that extruded WE43 possessed an ultimate tensile strength of 244 MPa, with 8% elongation, while processing by HPT yielded an ultimate tensile strength of 256 MPa with 0.5% elongation. Once again, the strengthening effect conferred by SPD processing of the material led to a significant decrease in alloy ductility (Liu et al, 2017).…”

Section: Processing Methodologiesmentioning

confidence: 98%

Rare Earth Based Magnesium Alloys—A Review on WE Series

2022

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Magnesium and magnesium alloys have attracted growing attention over the last decades as lightweight materials for a wide range of applications. In particular, WE series magnesium alloys have experienced growing interest over the last years due to their favourable mechanical properties at room and elevated temperatures. In addition, it has been reported that these rare earth-containing alloys possess superior corrosion resistance compared to other commonly used magnesium alloys, such as AZ series. This review aims at providing a concise overview of the research efforts made during recent years regarding the properties of WE series magnesium alloys (e.g., mechanical properties, corrosion behaviour), how these properties can be enhanced by controlling the microstructure of these materials, and the role of specific alloying elements that are used for the WE series. The widespread use of these materials has been limited, mainly due to their susceptibility to corrosion. Thus, in the present review, strong emphasis has been given to recent work studying the corrosion behaviour of the WE series alloys, and to protective strategies that can be employed to mitigate their degradation.

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Section: Processing Methodologiesmentioning

confidence: 98%

Rare Earth Based Magnesium Alloys—A Review on WE Series

2022

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“…It was revealed from previous literature that the strength and ductility can be greatly improved simultaneously for magnesium alloys by obtaining strong texture or nano/ultrafine grain structure by means of the SPD techniques. [ 5–7 ] However, these techniques have significant shortcomings, such as complex process, long cycle, high cost, and limited component size.…”

Section: Introductionmentioning

confidence: 99%

“…[ 3,4 ] In recent years, various severe plastic deformation (SPD) processes, such as equal channel angular processing (ECAP), high‐pressure torsion (HPT), and accumulative rolling bonding (ARB), have been applied to improve the mechanical properties of magnesium alloys. [ 5–7 ] Agnew et al [ 5 ] controlled the texture of the extruded AZ31 magnesium alloy through the ECAP process, and an increased fracture elongation of 45% was obtained in specific direction. Hou et al [ 6 ] conducted the six‐cycle ARB process and prepared the Mg‐5Li‐1Al alloy sheet with an average grain size of 100 nm.…”

Section: Introductionmentioning

confidence: 99%

Microstructure Characterization and Mechanical Properties of an AM60B Magnesium Alloy Sheet Prepared by the Double‐Pass High Strain Rate Rolling with Gradient Cooling

Zhang

et al. 2020

Adv Eng Mater

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AM60B magnesium alloy sheets with excellent mechanical properties are prepared by a double‐pass high strain rate rolling (HSRR) with gradient cooling from 370 to 340 °C. A bimodal lamellar structure, consisting of fine dynamically recrystallized grains, shear bands and fine precipitates, is obtained after the second‐pass HSRR. Formation mechanisms of shear bands are studied in depth. The results show that the formation of shear bands are closely related to the high‐density intersected twin lamellae, boundaries of initial coarse grains and the extensive dynamic recrystallization (DRX), respectively. It is also clarified that the HSRR process of the coarse grained AM60B alloy is dominated in succession by the twinning deformation stage and the following shear bands flow stage. Dynamic precipitation behavior is induced in the double‐pass HSRR process. The DRX is promoted by fine precipitates, resulting in local refinement of the HSRR'ed microstructure. Moreover, the weak basal texture is obtained with peak intensity less than 10. The high‐density twins, DRX and shear bands are suggested as main causes for the basal texture weakening. An outstanding matching between tensile strength and ductility at room temperature are obtained owing to the bimodal lamellar structure and the weakened basal texture.

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“…Our research team demonstrated that the mechanical properties and corrosion resistant performance are greatly improved though adding rare earth elements of lanthanum or cerium [14]. Meanwhile, we studied its plastic processing and processing maps preliminarily [15,16]. However, lack of accurate control of temperature and strain rate about development of the plastic formation process of Mg-Y-Sr-La(Ce)-Zr alloy.…”

Section: Introductionmentioning

confidence: 99%

Hot compression deformation behavior and processing map of Mg–Y–Sr–La(Ce)–Zr biodegradable magnesium alloy

Liu

et al. 2018

Materialwissenschaft Werkst

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The flow behavior of Mg–4.2Y–1.5Sr‐0.6La(Ce)–0.5Zr biodegradable magnesium alloy was investigated using Gleeble‐1500D thermal simulation test machine at deforming temperature of 350 °C–500 °C, strain rates of 0.001 s‐1–1 s‐1 and the final strain of 60 %. The flow stress constitutive relationship and processing map was established. Meanwhile, the experimental results indicated that flow stress of the Mg–Y–Sr–La(Ce)–Zr alloy increase and then decrease with increase of strain, which is due to work hardening caused by dislocation blocking and softening effects caused by dynamic recrystallization respectively. According to the processing maps and dynamic recrystallization of the alloy, the optimum processing parameters of the alloy are determined with a temperature range of 450 °C–500 °C and strain rate range of 0.006 s‐1–0.009 s‐1.

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Microstructural Evolution and Properties of a Hot Extruded and HPT‐Processed Resorbable Magnesium WE43 Alloy

Cited by 12 publications

References 42 publications

Rare Earth Based Magnesium Alloys—A Review on WE Series

Rare Earth Based Magnesium Alloys—A Review on WE Series

Microstructure Characterization and Mechanical Properties of an AM60B Magnesium Alloy Sheet Prepared by the Double‐Pass High Strain Rate Rolling with Gradient Cooling

Hot compression deformation behavior and processing map of Mg–Y–Sr–La(Ce)–Zr biodegradable magnesium alloy

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