Improvement of Tensile Properties of Wrought Magnesium Alloys by Grain Refining

Kamado, Shigeharu; Ashie, Tatsuya; Yamada, H.; Sanbun, Kou; Kojima, Yo

doi:10.4028/www.scientific.net/msf.350-351.65

Cited by 29 publications

(14 citation statements)

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“…Recent investigations of the decomposition of WE alloys at 523 K have revealed the precipitation of second phases such as phases in the Mg-Nd sequence, and the main hardening phase in that case is the metastable 0 (fcc) phase. 13,14) The yield strength of the alloy depends on the temperature, which influences the precipitates of such phases. Therefore, in accordance with the microstructure of the alloy, a hot-rolled WE43 alloy with artificial aging and without prior solution treatment will show an increase in tensile strength.…”

Section: Microstructure Of Alloy Under Various Conditionsmentioning

confidence: 99%

Effect of T5 and T6 Tempers on a Hot-Rolled WE43 Magnesium Alloy

Wang

et al. 2008

Mater. Trans.

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The influence of T5 and T6 tempers at 523 K on the mechanical properties and microstructure of hot-rolled WE43 alloy has been studied. The microstructure of the alloy under various conditions was studied using an optical microscope, a transmission electron microscope, and a xray diffractometer. The mechanical properties were measured on a tensile testing system. The results show that the hot-rolled WE43 alloy has a substantially higher hardness and strength improvement than the cast WE43 alloy. The hot-rolled WE43 alloy with a T5 temper showed better properties than the alloy with a T6 temper because both strain hardening and age hardening increased the strength of the alloy. In addition, the size of the precipitates after a T5 temper was smaller than that after a T6 temper. The yield strength of the alloy parallel to the rolling direction was higher than that perpendicular to the rolling direction.

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Section: Microstructure Of Alloy Under Various Conditionsmentioning

confidence: 99%

Effect of T5 and T6 Tempers on a Hot-Rolled WE43 Magnesium Alloy

Wang

et al. 2008

Mater. Trans.

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“…It has been demonstrated that the Equal-Channel-Angular Extrusion (ECAE) process could produce large bulk materials with a sub-microcrystalline structure for a wide range of materials from pure metals, solid-solution alloys, commercial alloys, to metal matrix composites, [11][12][13] including magnesium. [14][15][16][17][18][19][20][21] Therefore, the authors performed ECAE on WZ73 alloy, and the mechanical properties were examined.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Mg-Y-Zn Alloy Processed by Equal-Channel-Angular Extrusion

et al. 2003

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Fine-grained WZ73 magnesium alloy with the grain size of 1.6 mm was produced by Equal-Channel-Angular Extrusion. The material exhibited tensile yield strength of 293 MPa, tensile strength of 350 MPa and relatively large elongation of 18% at room temperature. The yield strength was almost unchanged up to 473 K. In addition, large superplastic elongation of over 300% was obtained at a temperature of 673 K.

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“…The grain structure of magnesium alloys is affected at temperatures around 200 8C at which recrystallization processes are initiated. [25] The reformation of grains here has an unambiguously impact on the mechanical strength of a material.…”

Section: Steam Sterilizationmentioning

confidence: 99%

The Effect of Different Sterilization Methods on the Mechanical Strength of Magnesium Based Implant Materials

et al. 2011

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The research on the development and characterization of potential magnesium biomaterials is a steadily expanding. Commonly, implants present a high risk of infection for their recipients. For this reason, a pre‐operative sterilizing process is required. Due to the temperatures and media which are used while sterilizing, effects may occur which cause a change in the mechanical strength of certain magnesium alloys. Four commonly used sterilization methods (autoclave sterilization, dry heat sterilization, gamma sterilization and ethylene oxide sterilization) were investigated to gain information about their influences on the quasi‐static mechanical behavior of LAE442 (Mg 90 m.%, Li 4 m.%, Al 4 m.%, RE 2 m.%), MgCa0.8 (Mg 99.2 m.%, Ca 0.8 m.%) magnesium alloys as well as pure magnesium. The mechanical properties exhibited by the sterilized and non‐sterilized alloys refer to susceptibilities of the mechanical strengths to the investigated sterilization methods. Such susceptibilities appear to be dependent on the combination of alloy and method of sterilization. However, the maximum changes in mechanical strength appear in the range of ±10%. Within this study, ETO sterilization caused the least changes in the mechanical strength of the alloys and appears to be the best performer.

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Improvement of Tensile Properties of Wrought Magnesium Alloys by Grain Refining

Cited by 29 publications

References 0 publications

Effect of T5 and T6 Tempers on a Hot-Rolled WE43 Magnesium Alloy

Effect of T5 and T6 Tempers on a Hot-Rolled WE43 Magnesium Alloy

Mechanical Properties of Mg-Y-Zn Alloy Processed by Equal-Channel-Angular Extrusion

The Effect of Different Sterilization Methods on the Mechanical Strength of Magnesium Based Implant Materials

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