Achieving synchronous improvement of strength and ductility of Mg–3% Al–1% Zn alloy through controlling the rolling orientation

In this work ultrafine-grained (UFG) structure was successfully produced in the commercial Al 6061 and Al-30%Zn alloys using new modifications of two severe plastic deformation (SPD) techniques, namely equal channel angular pressing (ECAP) with parallel channels (PC) and high pressure torsion (HPT) with enhanced load. Variation of SPD processing regimes made it possible not only to perform strong grain refinement but also to modify the phase composition through the formation of grain boundary (GB) segregations and precipitations. This enabled to achieve a unique combination of high strength and ductility in the Al 6061 alloy and demonstrate super-ductility in the Al-30%Zn alloy, when elongation to failure exceeded 150% at room temperature.

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A study of interface sliding at F.C.C.-B.C.C. boundaries in a Cu-Zn alloy

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100109252 ◽

1978 ◽

Vol 36 (1) ◽

pp. 422-423

Author(s):

F. Monchoux ◽

A. Rocher ◽

J.L. Martin

Keyword(s):

Face Centered Cubic ◽

Creep Tests ◽

High Voltage Electron Microscopy ◽

Diffusion Treatment ◽

Voltage Electron ◽

The Face ◽

Face Centered ◽

Interface Sliding ◽

Zn Alloy ◽

Made In

Interphase sliding is an important phenomenon of high temperature plasticity. In order to study the microstructural changes associated with it, as well as its influence on the strain rate dependence on stress and temperature, plane boundaries were obtained by welding together two polycrystals of Cu-Zn alloys having the face centered cubic and body centered cubic structures respectively following the procedure described in (1). These specimens were then deformed in shear along the interface on a creep machine (2) at the same temperature as that of the diffusion treatment so as to avoid any precipitation. The present paper reports observations by conventional and high voltage electron microscopy of the microstructure of both phases, in the vicinity of the phase boundary, after different creep tests corresponding to various deformation conditions.Foils were cut by spark machining out of the bulk samples, 0.2 mm thick. They were then electropolished down to 0.1 mm, after which a hole with thin edges was made in an area including the boundary

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Influence of Hydrogen on the Strength and Ductility of 30KhGSA and EI659 Steels in Quasi-Static and Shock-Wave Tests

Прикладная механика и техническая физика ◽

10.15372/pmtf20160512 ◽

2016 ◽

Keyword(s):

Shock Wave ◽

Strength And Ductility

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Deformation characteristics of Cu-30 % Zn alloy subjected to dynamic equal channel angular pressing (DECAP)

International Journal of Materials Research (formerly Zeitschrift fuer Metallkunde) ◽

10.3139/146.111857 ◽

2020 ◽

Vol 111 (2) ◽

pp. 129-135

Author(s):

Mingya Zhang ◽

Li Liu ◽

Zhenyi Huang ◽

Jinghui Li

Keyword(s):

Equal Channel Angular Pressing ◽

Deformation Characteristics ◽

Angular Pressing ◽

Zn Alloy

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ANACONDA ALLOY 360

Alloy Digest ◽

10.31399/asm.ad.cu0447 ◽

1982 ◽

Vol 31 (11) ◽

Keyword(s):

Corrosion Resistance ◽

Physical Properties ◽

High Speed ◽

Heat Treating ◽

High Speed Machining ◽

Copper Base ◽

Screw Machine ◽

Medium Strength ◽

Machining Operations ◽

Strength And Ductility

Abstract ANACONDA Alloy 360 is a leaded brass and is the alloy most often used for high-speed machining operations; it fills most of the needs for such purposes. Alloy 360 is the standard free-cutting brass and its machinability has become the standard by which all other copper-base alloys are rated. It has medium strength and ductility. Alloy 360 is used for hardware such as gears and pinions where excellent machinability is of prime importance and for all types of automatic high-speed screw-machine products. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-447. Producer or source: Anaconda American Brass Company.

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