Materials and Processing Designs for Magnesium Alloys — Grain Refining by Repeated Plastic Working and Solid‐State Synthesis of Mg<sub>2</sub>Si (Review)

Kondoh, Katsuyoshi; Tsuzuki, Ritsuko; Du, Wenbo; Kamado, Shigeharu

doi:10.1002/chin.200535248

Cited by 3 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, the Mg 2 Si phase, which acts as a particle in the structure, changed its distribution with increasing aging time and showing a slight increase in its ratio. The Mg 2 Si phase has a high hardness structure [59] and gives more hardness than many steel types [60]. It also has high melting temperature [41] and low density [42].…”

Section: Resultsmentioning

confidence: 99%

A basic study on artificial aging in Mg-10Al₁₂Si+1Pb alloy

Çiçek

Aydoğmuş

Sun

2020

Mater. Res. Express

View full text Add to dashboard Cite

In this study, research has been made on the aging of metal matrix composite materials produced by the in situ casting system. Mg matrix composite material was produced by the in situ casting system. In this study, 90%Mg+10% Al 12 Si (wt) ingot casting was performed for alloy formation and 1% Pb was added as an alloying element to the melted structure. This study aims to examine the effect of the artificial aging (AA) process on hardness and microstructure after alloying and composite of Mg metal. The in situ casting system was used in the casting of Mg alloy under the Ar gas atmosphere. The material after required casting homogenization process; for the AA process, they were embedded in a powder graphite filled vessel and kept at 350°C for 1 h and then quenched (with 25°C water). Later; after quenching, the materials were kept at 150°C for 2, 4, 12, 16 and 24 h and aged samples were obtained. Microstructure images were obtained from the samples by scanning electron microscope (SEM) and light optical microscope (LOM) and then the hardness values of the micro hardness device were measured. Grain structure because of AA heat treatment; showed changes according to un-aging material. The hardness value is directly proportional to the increasing aging time of the materials applied to the AA process; it was found that the levels increased approximately to 45% (86HV to 125HV) compared to the un-aging material and passed to the fixing phase.

show abstract

Section: Resultsmentioning

confidence: 99%

A basic study on artificial aging in Mg-10Al₁₂Si+1Pb alloy

Çiçek

Aydoğmuş

Sun

2020

Mater. Res. Express

View full text Add to dashboard Cite

show abstract

“…A Mg-5.0Sn-1.0Mn-0.4Zr alloy was prepared using a magnesium-30 zirconium master alloy, pure Mg (99.95%) and Sn (99.9%) metals, and MnCl 2 melted at 750˚C under protected gas including CO 2 and SF 6 , and poured into a permanent mold with Ф125 mm × 280 mm dimensions. The thermo mechanical treatment is schematically illustrated in Figure 1.…”

Section: Methodsmentioning

confidence: 99%

Thermo-Mechanical Treatment on Microstructure and Mechanical Properties of Mg-5.0Sn-1.0Mn-0.4Zr Alloy

Luo¹,

Fang²,

Liu³

2018

AMPC

View full text Add to dashboard Cite

The mechanical properties and microstructure of an as-cast Mg-5.0Sn-1.0Mn-0.4Zr alloy were investigated during thermo mechanical treatments consisting of hot extrusion, rolling, and ageing at 200˚C. The results indicate that only Mg 2 Sn phases formed in the Mg matrix, Mn and Zr do not cause the formation of any new phases. The average grain size, tensile strength and elongation were 22 μm, 285 MPa, and 14.5%, respectively, after extrusion + rolling + ageing treatment (ERA). The mechanical properties of ERA alloys with a peak hardness of 81 HV and 6.7% are improved compared with those of EA (extrusion + ageing treatment) samples; these changes are attributed to grain refinement and solid solution strengthening, age hardening, and precipitation strengthening.

show abstract

Wear properties of magnesium matrix composites reinforced with SiO₂ particles

Aydın

Fındık

2010

Industrial Lubrication and Tribology

View full text Add to dashboard Cite

PurposeThe purpose of this paper is to improve the wear resistance and tribological properties of magnesium and its alloys in order to apply them to the friction components.Design/methodology/approachWear test, microhardness measurements, X‐ray diffraction (XRD), optical and electron microscopy examinations were applied.FindingsThe ceramic SiO2, which has different particle‐sized reinforced pure Mg‐SiO2 composites, is produced by powder metallurgy using high ball milling, pressing and sintering. Mg2Si and MgO intermetallic phases produced by powder metallurgy in the Mg‐SiO2 composite are dispersed as homogeneous into the Mg matrix. Mg‐SiO2 composites exhibited a lower wear rate than the unreinforced pure magnesium specimens. Despite the pure Mg, the wear resistance of the composite is 61 per cent and the wear volume decrease with reducing SiO2 particle size. The hardness of the composite is increased in a ratio of 70 per cent with the distribution of the Mg2Si and MgO phases into the Mg matrix.Practical implicationsIn this paper, pure Mg powder with purity of 99.9 per cent and SiO2 powders with a mean particle size of −500, −250, −125, −75 and −10 μm are mixed by mechanical alloying. The wear behaviour of Mg‐SiO2 composite, with the different particle‐sized composites dispersed with Mg2Si and MgO intermetallic phases under dry friction condition is studied. The microstructural and mechanical properties of composite material samples are determined by differential scanning calorimeter, XRD, microhardness, optical and scanning electron microscopy tests.Originality/valueSiO2 particles distributed in the matrix are effective to improve hardness and wear resistance when contacting counter materials. In the present study, the magnesium powders with different particle size SiO2 powders are mechanically alloyed with a Turbola Spex 80000 mixer.

show abstract

Materials and Processing Designs for Magnesium Alloys — Grain Refining by Repeated Plastic Working and Solid‐State Synthesis of Mg₂Si (Review)

Abstract: 13 refs.]. -(KONDOH, K.; TSUZUKI, R.; DU, W.; KAMADO, S.; Adv. Technol. Mater. Mater. Process. J. 6 (2004) 2, 328-335; Res. Cent. Adv. Sci. Technol., Univ. Tokyo, Meguro, Tokyo 153, Japan; Eng.) -Schramke 35-248

Cited by 3 publications

References 0 publications

A basic study on artificial aging in Mg-10Al₁₂Si+1Pb alloy

A basic study on artificial aging in Mg-10Al₁₂Si+1Pb alloy

Thermo-Mechanical Treatment on Microstructure and Mechanical Properties of Mg-5.0Sn-1.0Mn-0.4Zr Alloy

Wear properties of magnesium matrix composites reinforced with SiO₂ particles

Contact Info

Product

Resources

About

Materials and Processing Designs for Magnesium Alloys — Grain Refining by Repeated Plastic Working and Solid‐State Synthesis of Mg2Si (Review)

Abstract: 13 refs.]. -(KONDOH, K.; TSUZUKI, R.; DU, W.; KAMADO, S.; Adv. Technol. Mater. Mater. Process. J. 6 (2004) 2, 328-335; Res. Cent. Adv. Sci. Technol., Univ. Tokyo, Meguro, Tokyo 153, Japan; Eng.) -Schramke 35-248

Cited by 3 publications

References 0 publications

A basic study on artificial aging in Mg-10Al12Si+1Pb alloy

A basic study on artificial aging in Mg-10Al12Si+1Pb alloy

Thermo-Mechanical Treatment on Microstructure and Mechanical Properties of Mg-5.0Sn-1.0Mn-0.4Zr Alloy

Wear properties of magnesium matrix composites reinforced with SiO2 particles

Contact Info

Product

Resources

About

Materials and Processing Designs for Magnesium Alloys — Grain Refining by Repeated Plastic Working and Solid‐State Synthesis of Mg₂Si (Review)

A basic study on artificial aging in Mg-10Al₁₂Si+1Pb alloy

A basic study on artificial aging in Mg-10Al₁₂Si+1Pb alloy

Wear properties of magnesium matrix composites reinforced with SiO₂ particles