The influence of heat treatment on the microstructure and hardness of Mg-5Si-7Sn-5Mn alloy

Tomasz Rzychoń; Bartosz Chmiela; Adrian Mościcki; Bartłomiej Dybowski; Sylwia Jendrysko

doi:10.4028/www.scientific.net/SSP.229.83

The influence of heat treatment on the microstructure and hardness of Mg-5Si-7Sn-5Mn alloy

Tomasz Rzychoń
, Bartosz Chmiela
, Adrian Mościcki
, Bartłomiej Dybowski
, Sylwia Jendrysko

Department of Material Technologies (RM/RM3)

Silesian University of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

The microstructure and hardness of as-cast Mg-5Si-7Sn-5Mn alloy after solution and ageing treatments is presented in this paper. It was found that the microstructure of as-cast alloy. is composed of primary dendrites crystals of Mg₂Si phase, α-Mg matrix, long needle-like precipitates of Mn₅Si₃, Chinese script particles of Mg₂Si phase and irregular Mg₂Sn phase. The solution treatment at 500°C causes the dissolution of the Mg₂Sn phase in the α-Mg magnesium solid solution, whereas the remaining intermetallic compounds are stable in this temperature. The hardness of alloy increases from 73 HV2 to 96 HV2 at 250°C. The increase in hardness is a result of the formation of the lath-like precipitates of Mg₂Sn phase within the α-Mg matrix.

Original language	English
Pages (from-to)	83-88
Number of pages	6
Journal	Solid State Phenomena
Volume	229
DOIs	https://doi.org/10.4028/www.scientific.net/SSP.229.83
Publication status	Published - 2015

Keywords

In-situ composite
Mg-Si alloys
Mg-Si-Sn-Mn alloy
MgSi phase
Microstructure

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
General Materials Science
Condensed Matter Physics

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title = "The influence of heat treatment on the microstructure and hardness of Mg-5Si-7Sn-5Mn alloy",

abstract = "The microstructure and hardness of as-cast Mg-5Si-7Sn-5Mn alloy after solution and ageing treatments is presented in this paper. It was found that the microstructure of as-cast alloy. is composed of primary dendrites crystals of Mg2Si phase, α-Mg matrix, long needle-like precipitates of Mn5Si3, Chinese script particles of Mg2Si phase and irregular Mg2Sn phase. The solution treatment at 500°C causes the dissolution of the Mg2Sn phase in the α-Mg magnesium solid solution, whereas the remaining intermetallic compounds are stable in this temperature. The hardness of alloy increases from 73 HV2 to 96 HV2 at 250°C. The increase in hardness is a result of the formation of the lath-like precipitates of Mg2Sn phase within the α-Mg matrix.",

keywords = "In-situ composite, Mg-Si alloys, Mg-Si-Sn-Mn alloy, MgSi phase, Microstructure",

author = "Tomasz Rzycho{\'n} and Bartosz Chmiela and Adrian Mo{\'s}cicki and Bart{\l}omiej Dybowski and Sylwia Jendrysko",

note = "Publisher Copyright: {\textcopyright} (2015) Trans Tech Publications, Switzerland.",

year = "2015",

doi = "10.4028/www.scientific.net/SSP.229.83",

language = "English",

volume = "229",

pages = "83--88",

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T1 - The influence of heat treatment on the microstructure and hardness of Mg-5Si-7Sn-5Mn alloy

AU - Rzychoń, Tomasz

AU - Chmiela, Bartosz

AU - Mościcki, Adrian

AU - Dybowski, Bartłomiej

AU - Jendrysko, Sylwia

N1 - Publisher Copyright: © (2015) Trans Tech Publications, Switzerland.

PY - 2015

Y1 - 2015

N2 - The microstructure and hardness of as-cast Mg-5Si-7Sn-5Mn alloy after solution and ageing treatments is presented in this paper. It was found that the microstructure of as-cast alloy. is composed of primary dendrites crystals of Mg2Si phase, α-Mg matrix, long needle-like precipitates of Mn5Si3, Chinese script particles of Mg2Si phase and irregular Mg2Sn phase. The solution treatment at 500°C causes the dissolution of the Mg2Sn phase in the α-Mg magnesium solid solution, whereas the remaining intermetallic compounds are stable in this temperature. The hardness of alloy increases from 73 HV2 to 96 HV2 at 250°C. The increase in hardness is a result of the formation of the lath-like precipitates of Mg2Sn phase within the α-Mg matrix.

AB - The microstructure and hardness of as-cast Mg-5Si-7Sn-5Mn alloy after solution and ageing treatments is presented in this paper. It was found that the microstructure of as-cast alloy. is composed of primary dendrites crystals of Mg2Si phase, α-Mg matrix, long needle-like precipitates of Mn5Si3, Chinese script particles of Mg2Si phase and irregular Mg2Sn phase. The solution treatment at 500°C causes the dissolution of the Mg2Sn phase in the α-Mg magnesium solid solution, whereas the remaining intermetallic compounds are stable in this temperature. The hardness of alloy increases from 73 HV2 to 96 HV2 at 250°C. The increase in hardness is a result of the formation of the lath-like precipitates of Mg2Sn phase within the α-Mg matrix.

KW - In-situ composite

KW - Mg-Si alloys

KW - Mg-Si-Sn-Mn alloy

KW - MgSi phase

KW - Microstructure

UR - https://www.scopus.com/pages/publications/84928527888

U2 - 10.4028/www.scientific.net/SSP.229.83

DO - 10.4028/www.scientific.net/SSP.229.83

M3 - Article

AN - SCOPUS:84928527888

SN - 1012-0394

VL - 229

SP - 83

EP - 88

JO - Solid State Phenomena

JF - Solid State Phenomena

ER -

The influence of heat treatment on the microstructure and hardness of Mg-5Si-7Sn-5Mn alloy

Abstract

Keywords

ASJC Scopus subject areas

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