Influence of Precipitation on Twinning in a Mg-Al-Zn Alloy

被引：1

作者：

Hidalgo-Manrique, P. ^{[1
]}

Robson, J. D. ^{[1
]}

机构：

[1] Univ Manchester, Sch Mat, MSS Tower, Manchester M13 9PL, Lancs, England

来源：

THERMEC 2018: 10TH INTERNATIONAL CONFERENCE ON PROCESSING AND MANUFACTURING OF ADVANCED MATERIALS | 2018年 / 941卷

基金：

英国工程与自然科学研究理事会;

关键词：

Magnesium; Twinning; Interaction particle-twin; Precipitation hardening; MAGNESIUM; PARTICLES; STRESS; SHAPE; AZ91;

D O I：

10.4028/www.scientific.net/MSF.941.1041

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A textured Mg-Al-Zn alloy rolled plate was solution treated and aged at 320 degrees C for 2 h and 116 h, respectively. Afterwards, the three conditions were compressed at room temperature along the transverse direction to activate {11 (2) over bar0} twinning. Ageing treatments were observed to strengthen the alloy in relation to the solution-treated condition. This has been mainly attributed to the restricted lateral growth of twins in the presence of particles and thus to the additional stress required for twin growth. Accordingly, a slightly reduced twin volume fraction, but an increased number of smaller twins was observed after compression in the aged samples.

引用

页码：1041 / 1046

页数：6

共 14 条

[1] A Taylor model based description of the proof stress of magnesium AZ31 during hot working [J].

Barnett, MR .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2003, 34A (09) :1799-1806

[2] DEFORMATION TWINNING [J].

CHRISTIAN, JW ;

MAHAJAN, S .

PROGRESS IN MATERIALS SCIENCE, 1995, 39 (1-2) :1-157

[3]

Dillamore I.L., 1965, Metall. Rev, V10, P271, DOI DOI 10.1179/MTLR.1965.10.1.271

[4] The role of back stress caused by precipitates on {10121} twinning in a Mg-6Zn alloy [J].

Jain, J. ;

Cizek, P. ;

Poole, W. J. ;

Barnett, M. R. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 647 :66-73

[5] Reducing the tension-compression yield asymmetry in a Mg-8Al-0.5Zn alloy via precipitation [J].

Jain, J. ;

Poole, W. J. ;

Sinclair, C. W. ;

Gharghouri, M. A. .

SCRIPTA MATERIALIA, 2010, 62 (05) :301-304

[6] In-situ X-ray diffraction studies of slip and twinning in the presence of precipitates in AZ91 alloy [J].

Kada, Sitarama R. ;

Lynch, Peter A. ;

Kimpton, Justin A. ;

Barnett, Matthew R. .

ACTA MATERIALIA, 2016, 119 :145-156

[7] Effects of precipitate shape and orientation on dispersion strengthening in magnesium alloys [J].

Nie, JF .

SCRIPTA MATERIALIA, 2003, 48 (08) :1009-1015

[8]

POLMEAR IJ, 1994, MATER SCI TECH-LOND, V10, P1, DOI 10.1179/026708394790163401

[9] Effect of precipitate shape on slip and twinning in magnesium alloys [J].

Robson, J. D. ;

Stanford, N. ;

Barnett, M. R. .

ACTA MATERIALIA, 2011, 59 (05) :1945-1956

[10] Effect of particles in promoting twin nucleation in a Mg-5 wt.% Zn alloy [J].

Robson, J. D. ;

Stanford, N. ;

Barnett, M. R. .

SCRIPTA MATERIALIA, 2010, 63 (08) :823-826

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