Microstructure and mechanical properties of as cast AZ31 with addition of germanium

被引：4

作者：

Liu, H. B. ^{[1
]}

Zhang, X. G. ^{[1
]}

Qi, G. H. ^{[1
]}

Pang, L. ^{[1
]}

Ma, Y. T. ^{[1
]}

Ji, S. H. ^{[1
]}

Zhang, H. Y. ^{[1
]}

机构：

[1] Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China

来源：

MATERIALS RESEARCH INNOVATIONS | 2010年 / 14卷 / 04期

关键词：

Germanium; AZ31; Microstructure; Morphology; Tensile property; AGE-HARDENING RESPONSE; Y-ZR ALLOYS; ZN ADDITIONS; GD; MAGNESIUM; SYSTEM;

D O I：

10.1179/143307510X12719005364341

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Microstructures and mechanical properties of as cast AZ31 withGe addition (0.4, 0.8 and1.6 wt-%) were investigated. The results show that the grain sizes of AZ31 with Ge addition were reduced by Ge element. The Mg2Ge precipitates distributed at grain boundaries and presented an irregular shape owning to the effect of Al or (and) Zn elements. Mg2Ge precipitates harm the tensile properties of the alloys. The failure model of the as cast alloys is the brittle intergranular fracture as well as that of AZ31.

引用

页码：342 / 347

页数：6

共 16 条

[1]

*ASM INT, 1992, ASM HDB, V3, P948

[2] HEAT OF FORMATION OF MAGNESIUM-GERMANIUM ALLOYS [J].

FERRO, R ;

CAPELLI, R ;

BORSESE, A ;

DELFINO, S .

JOURNAL OF THE LESS-COMMON METALS, 1974, 37 (02) :307-309

[3] Selection of promising quaternary candidates from Mg-Mn-(Sc, Gd, Y, Zr) for development of creep-resistant magnesium alloys [J].

Gröbner, J ;

Schmid-Fetzer, R .

JOURNAL OF ALLOYS AND COMPOUNDS, 2001, 320 (02) :296-301

[4] Mg-Gd-Y system phase diagram calculation and experimental clarification [J].

Guo Yongchun ;

Li Hanping ;

Li Jinshan ;

Yang Zhong ;

Zhao Juan ;

Xia Feng ;

Liang Minxian .

JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 450 (1-2) :446-451

[5] Effect of Zn additions on the age-hardening of Mg-2.0Gd-1.2Y-0.2Zr alloys [J].

Honma, T. ;

Ohkubo, T. ;

Kamado, S. ;

Hono, K. .

ACTA MATERIALIA, 2007, 55 (12) :4137-4150

[6] A computational thermodynamic model of the Mg-Al-Ge system [J].

Islam, F. ;

Thykadavil, A. K. ;

Medraj, M. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2006, 425 (1-2) :129-139

[7]

LIU HB, MAT RES INN IN PRESS

[8] Microstructure and mechanical properties of as-cast AZ31 with the addition of Sb [J].

Liu, HongBin ;

Gong, NingNing ;

Pang, Lei ;

Zhang, XingGuo .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 497 (1-2) :254-259

[9] Effects of ageing treatment on microstructures and properties of Mg-Gd-Y-Zr alloys with and without Zn additions [J].

Liu, X. B. ;

Chen, R. S. ;

Han, E. H. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 465 (1-2) :232-238

[10] An enhanced age hardening response in Mg-Sn based alloys containing Zn [J].

Mendis, C. L. ;

Bettles, C. J. ;

Gibson, M. A. ;

Hutchinson, C. R. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 435 :163-171

← 1 2 →