Enhancing the Mechanical Properties of <scp>AE</scp>42 Magnesium Alloy through Friction Stir Processing

Arora, Harpreet Singh; Grewal, Harpreet Singh; Singh, Harpreet; Dhindaw, B. K.; Mukherjee, Sundeep

doi:10.1002/adem.201300440

Cited by 9 publications

(2 citation statements)

References 34 publications

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“…The grain size of Mg alloys obtained by conventional FSP is 1-10 μm [30,[32][33][34][35][36][37][38][39][40][41]. To obtain ultrafine-or nano-grained Mg alloys, Chang et al [6] used the copper mold with liquid nitrogen as a gasket to reduce the processing temperature and increase the cooling rate, finally obtaining ultrafine grains (100-300 nm).…”

Section: Preparation Of Fine- Ultrafine- and Nano-grained Mg Alloysmentioning

confidence: 99%

Friction Stir Processing of Magnesium Alloys: A Review

Wang

Han

Peng

et al. 2019

Acta Metall. Sin. (Engl. Lett.)

169

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Magnesium (Mg) alloys have been extensively used in various fields, such as aerospace, automobile, electronics, and biomedical industries, due to their high specific strength and stiffness, excellent vibration absorption, electromagnetic shielding effect, good machinability, and recyclability. Friction stir processing (FSP) is a severe plastic deformation technique, based on the principle of friction stir welding. In addition to introducing the basic principle and advantages of FSP, this paper reviews the studies of FSP in the modification of the cast structure, superplastic deformation behavior, preparation of finegrained Mg alloys and Mg-based surface composites, and additive manufacturing. FSP not only refines, homogenizes, and densifies the microstructure, but also eliminates the cast microstructure defects, breaks up the brittle and network-like phases, and prepares fine-grained, ultrafine-, and nano-grained Mg alloys. Indeed, FSP significantly improves the comprehensive mechanical properties of the alloys and achieves low-temperature and/or high strain rate superplasticity. Furthermore, FSP can produce particle-and fiber-reinforced Mg-based surface composites. As a promising additive manufacturing technique of light metals, FSP enables the additive manufacturing of Mg alloys. Finally, we prospect the future research direction and application with friction stir processed Mg alloys.

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Section: Preparation Of Fine- Ultrafine- and Nano-grained Mg Alloysmentioning

confidence: 99%

Friction Stir Processing of Magnesium Alloys: A Review

Wang

Han

Peng

et al. 2019

Acta Metall. Sin. (Engl. Lett.)

169

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“…High-strain-rate deformation processes such as friction stir processing (FSP) can produce highly refined microstructures in a single step. − FSP provides great flexibility in terms of processing conditions to tailor the localized microstructure in a material. Although there are many studies on FSP of lightweight materials, − few have reported on FSP of high-strength materials such as SS316L. , Furthermore, a comprehensive study on biocompatibility, cellular response, and corrosion and wear behavior of friction-stir-processed stainless steel in a simulated body environment has not been reported. In the current work, the surface properties of SS316L stainless steel were tailored using a novel submerged friction stir processing route.…”

Section: Introductionmentioning

confidence: 99%

Friction Stir Processing of Stainless Steel for Ascertaining Its Superlative Performance in Bioimplant Applications

Perumal

Ayyagari

Chakrabarti³

et al. 2017

ACS Appl. Mater. Interfaces

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Substrate-cell interactions for a bioimplant are driven by substrate's surface characteristics. In addition, the performance of an implant and resistance to degradation are primarily governed by its surface properties. A bioimplant typically degrades by wear and corrosion in the physiological environment, resulting in metallosis. Surface engineering strategies for limiting degradation of implants and enhancing their performance may reduce or eliminate the need for implant removal surgeries and the associated cost. In the current study, we tailored the surface properties of stainless steel using submerged friction stir processing (FSP), a severe plastic deformation technique. FSP resulted in significant microstructural refinement from 22 μm grain size for the as-received alloy to 0.8 μm grain size for the processed sample with increase in hardness by nearly 1.5 times. The wear and corrosion behavior of the processed alloy was evaluated in simulated body fluid. The processed sample demonstrated remarkable improvement in both wear and corrosion resistance, which is explained by surface strengthening and formation of a highly stable passive layer. The methylthiazol tetrazolium assay demonstrated that the processed sample is better in supporting cell attachment, proliferation with minimal toxicity, and hemolysis. The athrombogenic characteristic of the as-received and processed samples was evaluated by fibrinogen adsorption and platelet adhesion via the enzyme-linked immunosorbent assay and lactate dehydrogenase assay, respectively. The processed sample showed less platelet and fibrinogen adhesion compared with the as-received alloy, signifying its high thromboresistance. The current study suggests friction stir processing to be a versatile toolbox for enhancing the performance and reliability of currently used bioimplant materials.

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