The influence of minor Mn additions on creep resistance of die-cast Mg-Al-RE alloys

被引：43

作者：

Zhu, S. M. ^{[1
]}

Abbott, T. B. ^{[1
,2
,3
]}

Gibson, M. A. ^{[1
,3
,4
]}

Nie, J. F. ^{[3
]}

Easton, M. A. ^{[1
]}

机构：

[1] RMIT Univ, Sch Engn, Carlton, Vic 3053, Australia

[2] Magontec Ltd, Sydney, NSW 2000, Australia

[3] Monash Univ, Dept Mat Sci & Engn, Clayton, Vic 3800, Australia

[4] CSIRO Mfg, Clayton, Vic 3168, Australia

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2017年 / 682卷

基金：

澳大利亚研究理事会;

关键词：

Magnesium alloys; Creep; Precipitation; Die-casting; Mn additions; DIRECTIONAL SOLIDIFICATION; MICROSTRUCTURE; BEHAVIOR; MICROSEGREGATION; AZ31; AM50;

D O I：

10.1016/j.msea.2016.11.075

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Magnesium alloys normally contain minor amounts (similar to 0.3%) of Mn to achieve improved corrosion resistance by controlling the level of Fe during melting. It has been reported recently that minor Mn additions can significantly enhance the age hardenability of die-cast Mg-Al-RE alloys. This paper reports that minor Mn additions also have a remarkable influence in improving the creep resistance of die-cast Mg-Al-RE alloys. The secondary creep rate of Mg-4Al-3La alloy at 175 degrees C/75 MPa is reduced by more than three orders of magnitude (from 5.9x10(-7) s(-1) to 3.0x10(-10) s(-1)) by the addition of 0.32% Mn. The improvement in creep resistance is associated with the dynamic precipitation of nanoscale Al-Mn particles during creep. The findings in this work shed new light on creep resistance of Mg-Al based alloys.

引用

页码：535 / 541

页数：7

共 50 条

[1] Age hardening in die-cast Mg-Al-RE alloys due to minor Mn additions
Zhu, S. M.
Abbott, T. B.
Gibson, M. A.
Nie, J. F.
Easton, M. A.
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2016, 656 : 34 - 38
[2] Influence of minor RE addition on microstructures, tensile properties, and creep resistance in a die-cast Mg-Al-Ca-Mn alloy
Zhang, Deping
Li, Boqiong
Zhang, Jinhui
Niu, Ting
Li, Chunlin
Cheng, Peng
Yang, Liuqing
[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2023, 26 : 3136 - 3145
[3] Creep resistance of die-cast Mg-Al-base alloys
Blum, W
Zhang, P
Watzinger, B
von Grossmann, B
Lipowski, H
Haldenwanger, HG
[J]. MAGNESIUM ALLOYS 2000, 2000, 350-3 : 141 - 150
[4] Microstructure modification and corrosion resistance enhancement of die-cast Mg-Al-Re alloy by Sr alloying
Matthew S.Dargusch
Zhiming Shi
Hanliang Zhu
Andrej Atrens
Guang-Ling Song
[J]. Journal of Magnesium and Alloys, 2021, 9 (03) : 950 - 963
[5] Microstructure modification and corrosion resistance enhancement of die-cast Mg-Al-Re alloy by Sr alloying
Dargusch, Matthew S.
Shi, Zhiming
Zhu, Hanliang
Atrens, Andrej
Song, Guang-Ling
[J]. JOURNAL OF MAGNESIUM AND ALLOYS, 2021, 9 (03) : 950 - 963
[6] Creep rupture properties of die-cast Mg-Al-Ca alloys
Terada, Yoshihiro
Itoh, Daigo
Sato, Tatsuo
[J]. MATERIALS CHEMISTRY AND PHYSICS, 2009, 113 (2-3) : 503 - 506
[7] Effect of substituting cerium-rich mischmetal with lanthanum on microstructure and mechanical properties of die-cast Mg-Al-RE alloys
Zhang, Jinghuai
Yu, Peng
Liu, Ke.
Fang, Daqing
Tang, Dingxiang
Meng, Jian
[J]. MATERIALS & DESIGN, 2009, 30 (07) : 2372 - 2378
[8] Microstructural analysis of the creep resistance of die-cast Mg-4Al-2RE alloy
Zhu, S. M.
Gibson, M. A.
Nie, J. F.
Easton, M. A.
Abbott, T. B.
[J]. SCRIPTA MATERIALIA, 2008, 58 (06) : 477 - 480
[9] Phase transformation and creep of Mg-Al-Ca based die-cast alloys
Suzuki, A
Saddock, ND
Jones, JW
Pollock, TM
[J]. MAGNESIUM TECHNOLOGY 2005, 2005, : 111 - 116
[10] Creep behavior of Al-Si die-cast alloys
Jaglinski, T
Lakes, R
[J]. JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME, 2004, 126 (04): : 378 - 383

← 1 2 3 4 5 →