Influence of Severe Metal Forming Processes on Microstructure and Mechanical Properties of Mg alloys

The effects of Mg and Cu additions with different contents on the mechanical properties of Al-Si alloy prepared by indirect squeeze casting have been experimentally investigated. The microstructure and mechanical properties of as-cast and T6-treated Al-Si-Cu-Mg alloys were tested by OM, SEM, DSC and tensile measurement, where the samples were produced by artificial aging at 180°C for 8 h after solution treatment at 540°C for 4 h. It has been found that for the as-cast alloys, with increasing contents of Mg and Cu the tensile strength (UTS) and yield strength (YS) increased, while the percentage elongation (El) decreased. And the optimal mechanical properties of Al-Si-Cu-Mg alloys were obtained under the content ratio of Cu/Mg within 4, where the UTS and El reached 426 MPa and 6.3% after T6 treated, respectively.

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The Effect of Porosity on the Microstructure and Mechanical Properties of Die Cast Mg Alloys

10.4271/2006-01-0524 ◽

2006 ◽

Cited By ~ 2

Author(s):

N. Moscovitch ◽

G. Gertsberg ◽

N. Nagar ◽

M. Lautzker ◽

N. Fantetti ◽

...

Keyword(s):

Mechanical Properties ◽

Mg Alloys ◽

Microstructure And Mechanical Properties ◽

Die Cast

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The Effect of Yttrium Addition on the Microstructure and Mechanical Properties of Mg Alloys

Transactions of the Indian Institute of Metals ◽

10.1007/s12666-014-0464-x ◽

2014 ◽

Vol 68 (3) ◽

pp. 331-339 ◽

Cited By ~ 5

Author(s):

Lavish Kumar Singh ◽

A. Srinivasan ◽

U. T. S. Pillai ◽

M. A. Joseph ◽

B. C. Pai

Keyword(s):

Mechanical Properties ◽

Mg Alloys ◽

Microstructure And Mechanical Properties ◽

Yttrium Addition

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Effect of trace additions of Sn on microstructure and mechanical properties of Al–Cu–Mg alloys

Materials & Design (1980-2015) ◽

10.1016/j.matdes.2010.03.012 ◽

2010 ◽

Vol 31 (8) ◽

pp. 4007-4015 ◽

Cited By ~ 25

Author(s):

Sanjib Banerjee ◽

P.S. Robi ◽

A. Srinivasan ◽

Praveen Kumar Lakavath

Keyword(s):

Mechanical Properties ◽

Mg Alloys ◽

Microstructure And Mechanical Properties

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Microstructure and Mechanical Properties of Rapidly Solidified Al-Fe-Ni-Mg Alloys

Materials Science Forum ◽

10.4028/www.scientific.net/msf.674.165 ◽

2011 ◽

Vol 674 ◽

pp. 165-170 ◽

Cited By ~ 5

Author(s):

Anna Kula ◽

Ludwik Blaz ◽

Makoto Sugamata

Keyword(s):

Mechanical Properties ◽

Solid Solution ◽

Rapid Solidification ◽

Spray Deposition ◽

Research Work ◽

Mg Alloys ◽

Solid Solution Hardening ◽

Compression Tests ◽

Microstructure And Mechanical Properties ◽

Wide Range

Rapid solidification (RS) combined with following mechanical consolidation of RS powders is considered as a valuable commercial method for the production of a wide range of metallic materials having fine-grained structures. Reported research results for various alloys demonstrate better compositional homogeneity, smaller grain size and relatively fine precipitates distributed homogenously in RS alloys than that for the materials produced by conventional metallurgical processing. The effect of rapid solidification on the microstructure and mechanical properties of selected Al-Fe-Ni-Mg alloys have been investigated. The basic item of the research work was obtaining aluminum PM materials strengthened by highly-dispersed transition metal compounds and aluminum-magnesium solid solution. Rapid solidification (RS) of Al-4Fe-4Ni and Al-4Fe-4Ni-5Mg alloys was performed by means of gas atomizing of the molten alloy and the spray deposition on the rotating water-cooled copper roll. Using typical powder metallurgy (PM) methods, i.e. cold pressing, vacuum degassing and hot extrusion, the RS-flakes were consolidated to the bulk PMmaterials. For comparison purposes, the conventionally cast and hot extruded Al-4Fe-4Ni and Al-4Fe-4Ni-5Mg alloys were studied as well. Mechanical properties of as-extruded materials were examined by compression tests performed at 293 K – 873 K. It was found that relatively high strength of as-extruded PM materials was accompanied by high ductility of samples deformed by hot compression test. Structural observations confirmed beneficial influence of rapid solidification on effective refining of intermetallic compounds, although some inhomogeneity of fine precipitates distribution was observed. Nevertheless, it was considered that an effective increase of the microhardness and strength of tested RS materials mostly result from achieved dispersion of structural components and can be intensified by solid solution hardening due to Mg-addition.

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Evolution of the Microstructure of the Copper Alloy (DIN-ECu-57) in the Deformation Zone in the Process of Pressing Conform

Materials Science Forum ◽

10.4028/www.scientific.net/msf.918.145 ◽

2018 ◽

Vol 918 ◽

pp. 145-151

Author(s):

Alexander V. Zinoviev ◽

Alexander N. Koshmin ◽

Alexander Y. Chasnikov

Keyword(s):

Mechanical Properties ◽

Cross Sections ◽

Metal Forming ◽

Deformation Zone ◽

Copper Alloy ◽

Copper Alloys ◽

Metal Flow ◽

Longitudinal Direction ◽

Microstructure And Mechanical Properties ◽

Continuous Extrusion

The process of continuous extrusion Conform, relating to modern energy-efficient metalworking technologies, is now widespread in the production of hollow and solid long-cut profiles of various cross-sections made of aluminum and copper alloys. However, in questions relating to the metal flow pattern and the formation of microstructure and mechanical properties, directly at the deformation zone, it has not studied sufficiently [1]. The work aimed at studying the nature of the metal flow and the transformation of the microstructure and mechanical properties of the copper alloy GOST-M1 (DIN-ECu-57) in the deformation zone during the pressing of round (Ø 8, 24, 30 mm) and flat (10 × 30, 10 × 60, 10 × 80, 10 × 100 mm) profiles. It was performed on the basis of New Metallurgical Technologies Ltd. and the department of metal forming of the NUST MISiS. In the pressing process, the templates of these profiles were selected, further samples for experiment were made and the study of the nature of the alloy flow in the longitudinal direction were carried out (continuous casting - deformation center - finished profile).

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