Author: Yi-Lei WuPublisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 384
Book Description
Effects of Microalloying and Heat Treatment on the Structure and Properties of a New Super High Strength Al-Zn-Mg-Cu Alloy
Author: Yi-Lei WuPublisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 384
Book Description
Metals Abstracts
Author: Optimizing the Heat Treatment of High Strength Al-Si-Mg and Al-Cu-Mg-Zn
Author: Ibrahim Mohamed FawzyPublisher: LAP Lambert Academic Publishing
ISBN: 9783659799532
Category :
Languages : en
Pages : 120
Book Description
The design of aeronautical alloys requires the use of these particular alloys for their strength and ductility. These properties can be further enhanced by controlling the added alloying elements as well as the heat treatment parameters. The objective of the present work was to determine the effect of the interactions between element additions and heat treatment on the alloy microstructure and mechanical properties. The present study was carried out to investigate both the formability and mechanical properties of 6xxx alloy series. The slabs (7 x 11 x 1.5 cm each) were machined and homogenized for 10 h at 520 C, followed by air cooling. The results show that a -iron phase displays low formability and hinders deformation of the grains during cold rolling and leads to premature cracking. The cold rolled structure contains elongated grains with broken -Al5FeSi platelet fragments. In the Mn-containing alloy, the -iron phase is more easily deformable while addition of Sr does not improve the alloy behavior. With beryllium additions, the iron intermetallics precipitate in the form of small, globular -Al8Fe2SiBe script particles, in the interdendritic regions."
Effects of Magnesium on the Microstructure, Hardness, and Tensile Properties of Zinc Alloys Containing 25 to 40 Percent Aluminum
Author: L. A. NeumeierPublisher:
ISBN:
Category : Aluminum-zinc alloys
Languages : en
Pages : 42
Book Description
Light Metals 2013
Author: Barry SadlerPublisher: Springer
ISBN: 3319651366
Category : Technology & Engineering
Languages : en
Pages : 1276
Book Description
Effect of Microalloying Elements on the Heat Treatment Response and Tensile Properties of Al-Si-Mg Alloys
Author: Mohamed F. IbrahimPublisher:
ISBN:
Category : Technology
Languages : en
Pages :
Book Description
Study of Nano-treating Effects on High Strength Aluminum Alloys
Author: Jie YuanPublisher:
ISBN:
Category :
Languages : en
Pages : 209
Book Description
Its high alloying makes it prone to solidification defects. Thus, plastic deformation is required to close shrinkage porosity, making this alloy for wrought products only. Moreover, this alloy has a limit of maximum Mg content at 1.8% as a high Mg content would form bulky Al2CuMg phase in the matrix, which has a limited solubility during solutionizing. Nanoparticles successfully reduced the solidification defects and greatly recovered the ductility of the cast alloy. In summary, this dissertation first discussed a new interface-controlled mechanism for in-situ synthesis of ceramic nanoparticles to build a solid foundation for economical nano-treating of molten metals. Then the nano-treating effects on solidification and heat treatment were systematically studied. Finally, two critical effects from nano-treating were summarized: "antibody effect" to enable scalable manufacturing of various high-strength aluminum alloys without cracking and shrinkage porosities and "vitamin effect" to improve microstructure and properties of alloys. The effects were successfully demonstrated to develop and manufacture high-performance aluminum alloys: manufacturing high-strength Al-Zn-Mg-Cu alloy, natural aging to AA7075 welds with nano-treated welding wires, and casting of high-strength Al-Cu-Mg alloys.
Light Alloys
Author: Ian PolmearPublisher: Elsevier
ISBN: 0080496105
Category : Technology & Engineering
Languages : en
Pages : 437
Book Description
The definitive overview of the science and metallurgy of aluminum, magnesium, titanium and beryllium alloys, this is the only book available covering the background materials science, properties, manufacturing processes and applications of these key engineering metals in a single accessible volume. Use of these metals is now more widespread than ever, and they are routinely found in motor vehicles and aircraft. New material includes materials characteristics and applications; heat treatment properties; fabrication; microstructure/property relationships; new applications and processes. The definitive single volume overview New material on processing, characteristics and applications of these essential metals Covers the latest applications and processes in the auto and aero industries
International Aerospace Abstracts
Author: Microstructure and Properties of Cast Ingots of Al-Zn-Mg-Cu Alloys Modified with Sc and Zr
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 25
Book Description
The effect of combined additions of Sc and Zr on the microstructure and tensile properties of the direct chill (DC) cast ingots of developmental Al-Zn-Mg-Cu alloys has been evaluated in this work. The properties in both the longitudinal and transverse directions of the cast ingots were determined in as-cast and cast plus heat-treated conditions, at room and cryogenic temperatures. Extensive microstructural evaluation was carried out using optical and electron microscopy, including orientation image microscopy by the electron backscatter diffraction technique. The Sc-containing developmental cast alloys showed the tensile properties, which are much better than the properties of any commercial cast Al alloys and are similar or even superior to the properties of 7075-T6 alloy forgings. The microstructural evolution, the strengthening mechanisms, optimum content of the dispersoid-forming elements, and the processing-structure-property correlations are discussed.