scholarly journals Si3N4 Nanoparticle Addition to Concentrated Magnesium Alloy AZ81: Enhanced Tensile Ductility and Compressive Strength

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Muralidharan Paramsothy ◽  
Xing He Tan ◽  
Jimmy Chan ◽  
Richard Kwok ◽  
Manoj Gupta
Keyword(s):  
Compressive Strength ◽  
Magnesium Alloy ◽  
Failure Strain ◽  
Tensile Ductility ◽  
Hot Extrusion ◽  
Longitudinal Direction ◽  
Dual Function ◽  
Monolithic Alloy ◽  
Nanoparticle Distribution ◽  
Beneficial Effects

This study is aimed at understanding the tensile ductility and compressive strength-enhancing dual function of nanoparticles in a concentrated magnesium alloy (AZ81) nanocomposite. Si3N4 nanoparticles were selected for reinforcement purposes due to the known affinity between magnesium and nitrogen. AZ81 magnesium alloy was reinforced with Si3N4 nanoparticles using solidification processing followed by hot extrusion. The nanocomposite exhibited similar grain size and hardness to the monolithic alloy, reasonable nanoparticle distribution, and nondominant (0 0 0 2) texture in the longitudinal direction. Compared to the monolithic alloy in tension, the nanocomposite exhibited higher failure strain (+23%) without significant compromise in strength, and higher energy absorbed until fracture (EA) (+27%). Compared to the monolithic alloy in compression, the nanocomposite exhibited similar failure strain (+3%) with significant increase in strength (up to +20%) and higher EA (+24%). The beneficial effects of Si3N4 nanoparticle addition on tensile ductility and compressive strength dual enhancement of AZ81 alloy are discussed in this paper.

scholarly journals TiC Nanoparticle Addition to Enhance the Mechanical Response of Hybrid Magnesium Alloy

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Muralidharan Paramsothy ◽  
Jimmy Chan ◽  
Richard Kwok ◽  
Manoj Gupta
Keyword(s):  
Magnesium Alloy ◽  
Yield Strength ◽  
Mechanical Response ◽  
Failure Strain ◽  
Hot Extrusion ◽  
Longitudinal Direction ◽  
Tensile Yield Strength ◽  
Compressive Yield Strength ◽  
Nanoparticle Distribution ◽  
Tic Nanoparticle

A hybrid magnesium alloy nanocomposite containing TiC nanoparticle reinforcement was fabricated using solidification processing followed by hot extrusion. The nanocomposite exhibited similar grain size to the monolithic hybrid alloy, reasonable TiC nanoparticle distribution, nondominant (0 0 0 2) texture in the longitudinal direction, and 16% higher hardness than the monolithic hybrid alloy. Compared to the monolithic hybrid alloy, the nanocomposite simultaneously exhibited higher tensile yield strength (0.2% TYS), ultimate tensile strength (UTS), failure strain, and work of fracture (WOF) (+14%, +7%, +81%, and +92%, resp.). Compared to the monolithic hybrid alloy, the nanocomposite exhibited lower compressive yield strength (0.2% CYS) and higher ultimate compressive strength (UCS), failure strain, and WOF (–11%, +7%, +4%, and +15%, resp.). The advantageous effects of TiC nanoparticle addition on the enhancement of tensile and compressive properties of the hybrid magnesium alloy are investigated in this paper.

scholarly journals The Overall Effects of AlN Nanoparticle Addition to Hybrid Magnesium Alloy AZ91/ZK60A

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Muralidharan Paramsothy ◽  
Jimmy Chan ◽  
Richard Kwok ◽  
Manoj Gupta
Keyword(s):  
Magnesium Alloy ◽  
Yield Strength ◽  
Failure Strain ◽  
Hot Extrusion ◽  
Longitudinal Direction ◽  
Tensile Yield Strength ◽  
Compressive Yield Strength ◽  
Compressive Properties ◽  
Nanoparticle Distribution ◽  
Magnesium Alloy Az91

A hybrid magnesium alloy nanocomposite containing AlN nanoparticle reinforcement was fabricated using solidification processing followed by hot extrusion. The nanocomposite exhibited similar grain size to the monolithic hybrid alloy, reasonable AlN and intermetallic nanoparticle distribution, nondominant(0 0 0 2)texture in the longitudinal direction, and 17% higher hardness than the monolithic hybrid alloy. Compared to the monolithic hybrid alloy, the nanocomposite exhibited higher tensile yield strength (0.2% TYS) and ultimate tensile strength (UTS) without significant compromise in failure strain and energy absorbed until fracture (EA) (+5%, +5%, −14% and −10%, resp.). Compared to the monolithic hybrid alloy, the nanocomposite exhibited unchanged compressive yield strength (0.2% CYS) and higher ultimate compressive strength (UCS), failure strain, and EA (+1%, +6%, +24%, and +6%, resp.). The overall effects of AlN nanoparticle addition on the tensile and compressive properties of the hybrid magnesium alloy is investigated in this paper.

scholarly journals Adding TiC Nanoparticles to Magnesium Alloy ZK60A for Strength/Ductility Enhancement

2011 ◽  
Vol 2011 ◽  
pp. 1-9 ◽  
Author(s):  
Muralidharan Paramsothy ◽  
Jimmy Chan ◽  
Richard Kwok ◽  
Manoj Gupta
Keyword(s):  
Failure Strain ◽  
Intermetallic Phase ◽  
Hot Extrusion ◽  
Longitudinal Direction ◽  
Solidification Processing ◽  
Nanoparticle Distribution ◽  
Compressive Response ◽  
Tic Nanoparticles ◽  
Work Of Fracture ◽  
Tic Nanoparticle

ZK60A nanocomposite containing TiC nanoparticles was fabricated using solidification processing followed by hot extrusion. The ZK60A nanocomposite exhibited similar grain size to monolithic ZK60A and significantly reduced presence of intermetallic phase, reasonable TiC nanoparticle distribution, nondominant (0 0 0 2) texture in the longitudinal direction, and 16% lower hardness than monolithic ZK60A. Compared to monolithic ZK60A (in tension), the ZK60A nanocomposite simultaneously exhibited higher 0.2% TYS, UTS, failure strain, and work of fracture (WOF) (+13%, +15%, +76%, and +106%, resp.). Also, compared to monolithic ZK60A (in compression), the ZK60A nanocomposite exhibited lower 0.2% CYS (−17%) and higher UCS, failure strain, and WOF (+11%, +29%, and +34%, resp.). The beneficial effect of adding TiC nanoparticles on the enhanced tensile and compressive response of ZK60A is investigated in this paper.

Enhancement of compressive strength and failure strain in AZ31 magnesium alloy

2009 ◽  
Vol 482 (1-2) ◽  
pp. 73-80 ◽  
Author(s):  
M. Paramsothy ◽  
S.F. Hassan ◽  
N. Srikanth ◽  
M. Gupta
Keyword(s):  
Compressive Strength ◽  
Magnesium Alloy ◽  
Failure Strain ◽  
Az31 Magnesium Alloy

MAGNESIUM MSR-A

Alloy Digest ◽  
1962 ◽  
Vol 11 (7) ◽  
Keyword(s):  
Compressive Strength ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Magnesium Alloy ◽  
Yield Strength ◽  
Physical Properties ◽  
Heat Treating ◽  
Temperature Performance ◽  
Cast Magnesium Alloy ◽  
Cast Magnesium

Abstract Magnesium MSR-A is a heat-treatable magnesium alloy with highest yield strength of any cast magnesium alloy up to 480 F. It is pressure tight and weldable by argon-arc. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength as well as creep and fatigue. It also includes information on high temperature performance and corrosion resistance as well as casting, heat treating, and joining. Filing Code: Mg-52. Producer or source: J. Stone & Company Ltd.

Influence of Hot-Extrusion on Mechanical Properties of AZ31B Magnesium Alloy Sheet

2005 ◽  
Vol 15 (1) ◽  
pp. 25-30
Author(s):  
Yong-Gil Kim ◽  
Hak-Kyu Choi ◽  
Min-Cheol Kang ◽  
Hae-Yong Jeong ◽  
Cha-Hurn Bae
Keyword(s):  
Mechanical Properties ◽  
Magnesium Alloy ◽  
Hot Extrusion ◽  
Alloy Sheet ◽  
Az31b Magnesium Alloy ◽  
Magnesium Alloy Sheet ◽  
Az31b Magnesium Alloy Sheet

Characterization of AM60 Magnesium Alloy Prepared by Rapid Solidification and Plastic Consolidation Technique

2010 ◽  
Vol 667-669 ◽  
pp. 997-1002
Author(s):  
Tomasz Tokarski
Keyword(s):  
Mechanical Properties ◽  
Magnesium Alloy ◽  
Rapid Solidification ◽  
Melt Spinning ◽  
Bulk Material ◽  
Structure Refinement ◽  
Hot Extrusion ◽  
Solidification Process ◽  
Protective Atmosphere ◽  
Material Structure

Magnesium and its alloys are attractive candidates for automotive and aerospace applications due to their relatively high strength and low density. However, their low ductility determined by hcp structure of material results in limitation of plastic deformation processing. In order to improve ductility as well as mechanical properties, structure refinement processes can be used. It is well known that effective refining of the material structure can be achieved by increasing the cooling rate during casting procedures, hence rapid solidification process (RSP) has been experimented for the fabrication of magnesium alloys. The present paper reports an experimental investigation on the influence of rapid solidification on the mechanical properties of AM60 magnesium alloy. In order to obtain RS material melt spinning process was applied in protective atmosphere, resulting in formation of RS ribbons. Following consolidation of the RS material is necessary to obtain bulk material with high mechanical properties, as so hot extrusion process was applied. It was noticed that application of plastic consolidation by hot extrusion is the most effective process to achieve full densification of material. For comparison purposes, the conventionally cast and hot extruded AM60 alloy was studied as well. The purpose of the present study was to investigate in detail the effect of rapid solidification and extrusion temperature on the structure and mechanical properties of the materials.

scholarly journals STRUCTURE AND PROPERTIES OF AZ31 MAGNESIUM ALLOY AFTER COMBINATION OF HOT EXTRUSION AND ECAP

2017 ◽  
Vol 23 (3) ◽  
pp. 222 ◽  
Author(s):  
Ondřej Hilšer ◽  
Stanislav Rusz ◽  
Wojciech Maziarz ◽  
Jan Dutkiewicz ◽  
Tomasz Tański ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Magnesium Alloy ◽  
Hot Extrusion ◽  
Az31 Magnesium Alloy ◽  
Initial State ◽  
Fine Grained ◽  
Angular Pressing ◽  
Ecap Process ◽  
Average Grain Size ◽  
Fine Grained Structure

<p>Equal channel angular pressing (ECAP) method was used for achieving very fine-grained structure and increased mechanical properties of AZ31 magnesium alloy. The experiments were focused on the, in the initial state, hot extruded alloy. ECAP process was realized at the temperature 250°C and following route Bc. It was found that combination of hot extrusion and ECAP leads to producing of material with significantly fine-grained structure and improves mechanical properties. Alloy structure after the fourth pass of ECAP tool with helix matrix 30° shows a fine-grained structure with average grain size of 2 µm to 3 µm and high disorientation between the grains. More experimental results are discussed in this article.</p>

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