Ultrasonic grain refinement of die cast copper alloys

被引：17

作者：

Puga, H. ^{[1
]}

Barbosa, J. ^{[1
]}

Machado, J. M. ^{[1
]}

Vilarinho, C. ^{[2
]}

机构：

[1] Univ Minho, CMEMS, Campus Azurem, P-4800058 Guimaraes, Portugal

[2] Univ Minho, MEtRiCS Mech Engn & Resource Sustainabil Ctr, Campus Azurem, P-4800058 Guimaraes, Portugal

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2019年 / 263卷

关键词：

Ultrasonic treatment; Copper alloys; Grain refinement; Casting; BRASS;

D O I：

10.1016/j.jmatprotec.2018.08.034

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, the effect of ultrasound as an alternative melt refinement technique of commercially available brass alloys and its impact in the microstructural and mechanical properties is analysed. A Cu-Zn alloy was cast in different conditions: without melt treatment, chemically refined and ultrasonically refined at different temperatures. Ultrasonic treatment was found to be more efficient than chemical refinement, promoting lower grain size and higher roundness of the alpha-phase and decreased the ratio of the alpha/beta phases. The best results were achieved for 940 degrees C melt refinement temperature. The microstructure morphology improved the alloy mechanical properties, namely ultimate tensile strength, yield stress and elongation, which attained 386 MPa, 192 MPa and 11.5%, respectively, for that melt refinement temperature.

引用

页码：336 / 342

页数：7

共 50 条

[1] Crystallography of grain refinement in cast zinc-copper alloys
Liu, Zhilin
Qiu, Dong
Wang, Feng
Taylor, John A.
Zhang, Mingxing
[J]. JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2015, 48 : 890 - 900
[2] Crystallography of grain refinement in cast zinc-copper alloys
20152300926707
[J]. Zhang, Mingxing, 1600, International Union of Crystallography, 5 Abbey Road, Chester, CH1 2HU, United Kingdom (48):
[3] Segregation and grain refinement in cast titanium alloys
Bermingham M.J.
McDonald S.D.
StJohn D.H.
Dargusch M.S.
[J]. Journal of Materials Research, 2009, 24 (4) : 1529 - 1535
[4] Segregation and grain refinement in cast titanium alloys
Bermingham, M. J.
McDonald, S. D.
StJohn, D. H.
Dargusch, M. S.
[J]. JOURNAL OF MATERIALS RESEARCH, 2009, 24 (04) : 1529 - 1535
[5] Grain refinement of copper base alloys
Sadayappan, M
Fasoyinu, FA
Sahoo, M
[J]. PLENARY LECTURES/MOVEMENT OF COPPER AND INDUSTRY OUTLOOK/COPPER APPLICATIONS AND FABRICATION, 1999, : 279 - 291
[6] THE APPLICATION OF GRAIN REFINEMENT TO CAST COPPER ALUMINIUM ALLOYS CONTAINING THE BETA-PHASE
DENNISON, JP
TULL, EV
[J]. JOURNAL OF THE INSTITUTE OF METALS, 1953, 81 (11): : 513 - 520
[7] Grain refinement of magnesium alloys by ultrasonic vibration
Ramirez, Anthony
Qian, Ma
[J]. MAGNESIUM TECHNOLOGY 2007, 2007, : 127 - +
[8] A Brief History of the Grain Refinement of Cast Light Alloys
StJohn, D. H.
Easton, M. A.
Cao, P.
Bermingham, M.
Qian, M.
[J]. LIGHT METALS TECHNOLOGY 2013, 2013, 765 : 123 - +
[9] Review of Grain Refinement Performance of Aluminium Cast Alloys
El Haj, Badia Ait
Hamadellah, Abederrazak
Bouayad, Aboubakr
El Akili, Charaf
[J]. METALLURGICAL & MATERIALS ENGINEERING, 2023, 29 (02) : 1 - 15
[10] The effect of solute on ultrasonic grain refinement of magnesium alloys
Qian, M.
Ramirez, A.
Das, A.
StJohn, D. H.
[J]. JOURNAL OF CRYSTAL GROWTH, 2010, 312 (15) : 2267 - 2272

← 1 2 3 4 5 →