Influence of Alloying Treatment and Rapid Solidification on the Degradation Behavior and Mechanical Properties of Mg
Magnesium (Mg) has drawn increasing attention as a tissue engineering material. However, there have been very few studies of laser-melted Mg-Zn alloys. In this study, four binary Mg-xZn (x = 2, 4, 6 and 8 wt. %) alloys were fabricated by laser melting. The influence of zinc (Zn) content and techniqu...
Main Authors: | , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2016-10-01
|
Series: | Metals |
Subjects: | |
Online Access: | http://www.mdpi.com/2075-4701/6/11/259 |
id |
doaj-a7f3454ccd8246cca2205801c83c41fd |
---|---|
record_format |
Article |
spelling |
doaj-a7f3454ccd8246cca2205801c83c41fd2020-11-24T21:17:16ZengMDPI AGMetals2075-47012016-10-0161125910.3390/met6110259met6110259Influence of Alloying Treatment and Rapid Solidification on the Degradation Behavior and Mechanical Properties of MgJian Chen0Ping Wu1Qiyuan Wang2Youwen Yang3Shuping Peng4Yuanzhuo Zhou5Cijun Shuai6Youwen Deng7Department of Emergency Medicine, The Second Xiangya Hospital, Central South University, Changsha 410083, ChinaCollege of Chemistry, Xiangtan University, Xiangtan 411105, ChinaDepartment of Emergency Medicine, The Second Xiangya Hospital, Central South University, Changsha 410083, ChinaState Key Laboratory of High Performance Complex Manufacturing, the State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, ChinaThe Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha 410008, ChinaState Key Laboratory of High Performance Complex Manufacturing, the State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, ChinaState Key Laboratory of High Performance Complex Manufacturing, the State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, ChinaDepartment of Emergency Medicine, The Second Xiangya Hospital, Central South University, Changsha 410083, ChinaMagnesium (Mg) has drawn increasing attention as a tissue engineering material. However, there have been very few studies of laser-melted Mg-Zn alloys. In this study, four binary Mg-xZn (x = 2, 4, 6 and 8 wt. %) alloys were fabricated by laser melting. The influence of zinc (Zn) content and technique on the degradation behavior and mechanical properties of Mg were discussed. Results revealed that Mg-xZn alloys consisted of an α-Mg matrix and MgZn phases, which dispersed at the grain boundaries. In addition, the MgZn phase increased with the increase in Zn content. The laser-melted alloy had fine homogenous grains, with an average grain size of approximately 15 μm. Grain growth was effectively inhibited due to the precipitation of the MgZn phase and rapid solidification. Grain refinement consequently slowed down the degradation rate, with Zn content increasing to 6 wt. %. However, a further increase of Zn content accelerated the degradation rate due to the galvanic couple effect between α-Mg and MgZn. Moreover, the mechanical properties were improved due to the grain refinement and reinforcement of the MgZn phase.http://www.mdpi.com/2075-4701/6/11/259Mg-Zn alloysalloying treatmentlaser meltingdegradation behaviorgrain refinement |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jian Chen Ping Wu Qiyuan Wang Youwen Yang Shuping Peng Yuanzhuo Zhou Cijun Shuai Youwen Deng |
spellingShingle |
Jian Chen Ping Wu Qiyuan Wang Youwen Yang Shuping Peng Yuanzhuo Zhou Cijun Shuai Youwen Deng Influence of Alloying Treatment and Rapid Solidification on the Degradation Behavior and Mechanical Properties of Mg Metals Mg-Zn alloys alloying treatment laser melting degradation behavior grain refinement |
author_facet |
Jian Chen Ping Wu Qiyuan Wang Youwen Yang Shuping Peng Yuanzhuo Zhou Cijun Shuai Youwen Deng |
author_sort |
Jian Chen |
title |
Influence of Alloying Treatment and Rapid Solidification on the Degradation Behavior and Mechanical Properties of Mg |
title_short |
Influence of Alloying Treatment and Rapid Solidification on the Degradation Behavior and Mechanical Properties of Mg |
title_full |
Influence of Alloying Treatment and Rapid Solidification on the Degradation Behavior and Mechanical Properties of Mg |
title_fullStr |
Influence of Alloying Treatment and Rapid Solidification on the Degradation Behavior and Mechanical Properties of Mg |
title_full_unstemmed |
Influence of Alloying Treatment and Rapid Solidification on the Degradation Behavior and Mechanical Properties of Mg |
title_sort |
influence of alloying treatment and rapid solidification on the degradation behavior and mechanical properties of mg |
publisher |
MDPI AG |
series |
Metals |
issn |
2075-4701 |
publishDate |
2016-10-01 |
description |
Magnesium (Mg) has drawn increasing attention as a tissue engineering material. However, there have been very few studies of laser-melted Mg-Zn alloys. In this study, four binary Mg-xZn (x = 2, 4, 6 and 8 wt. %) alloys were fabricated by laser melting. The influence of zinc (Zn) content and technique on the degradation behavior and mechanical properties of Mg were discussed. Results revealed that Mg-xZn alloys consisted of an α-Mg matrix and MgZn phases, which dispersed at the grain boundaries. In addition, the MgZn phase increased with the increase in Zn content. The laser-melted alloy had fine homogenous grains, with an average grain size of approximately 15 μm. Grain growth was effectively inhibited due to the precipitation of the MgZn phase and rapid solidification. Grain refinement consequently slowed down the degradation rate, with Zn content increasing to 6 wt. %. However, a further increase of Zn content accelerated the degradation rate due to the galvanic couple effect between α-Mg and MgZn. Moreover, the mechanical properties were improved due to the grain refinement and reinforcement of the MgZn phase. |
topic |
Mg-Zn alloys alloying treatment laser melting degradation behavior grain refinement |
url |
http://www.mdpi.com/2075-4701/6/11/259 |
work_keys_str_mv |
AT jianchen influenceofalloyingtreatmentandrapidsolidificationonthedegradationbehaviorandmechanicalpropertiesofmg AT pingwu influenceofalloyingtreatmentandrapidsolidificationonthedegradationbehaviorandmechanicalpropertiesofmg AT qiyuanwang influenceofalloyingtreatmentandrapidsolidificationonthedegradationbehaviorandmechanicalpropertiesofmg AT youwenyang influenceofalloyingtreatmentandrapidsolidificationonthedegradationbehaviorandmechanicalpropertiesofmg AT shupingpeng influenceofalloyingtreatmentandrapidsolidificationonthedegradationbehaviorandmechanicalpropertiesofmg AT yuanzhuozhou influenceofalloyingtreatmentandrapidsolidificationonthedegradationbehaviorandmechanicalpropertiesofmg AT cijunshuai influenceofalloyingtreatmentandrapidsolidificationonthedegradationbehaviorandmechanicalpropertiesofmg AT youwendeng influenceofalloyingtreatmentandrapidsolidificationonthedegradationbehaviorandmechanicalpropertiesofmg |
_version_ |
1726013332879572992 |