New light-weight aluminum alloys with high Mg2Si-content by spray forming∗

2006 ◽  
Vol 61 (5) ◽  
pp. 267-271
Author(s):  
O. Stelling ◽  
A. Irretier ◽  
O. Keßler ◽  
P. Krug ◽  
B. Commandeur
Keyword(s):  
Aluminum Alloys ◽  
Spray Forming ◽  
Light Weight

New Light-Weight Aluminium Alloys with High Mg2Si-Content by Spray Forming

2006 ◽  
Vol 519-521 ◽  
pp. 1245-1250 ◽  
Author(s):  
O. Stelling ◽  
A. Irretier ◽  
O. Kessler ◽  
P. Krug ◽  
Bernd Commandeur
Keyword(s):  
Aluminum Alloys ◽  
Yield Strength ◽  
Solidification Rate ◽  
Physical And Mechanical Properties ◽  
Spray Forming ◽  
Age Hardening ◽  
Light Weight ◽  
Fine Microstructure ◽  
Si Content ◽  
Compact Design

Aluminum alloys with high Mg2Si-content (>10 %) offer the possibility of a significant decrease in density and an increase in stiffness at the same time. But these alloys can hardly be produced in casting processes, due to an oxidation and a generation of pores by hydrogen solubility of the melt. Furthermore, the usual solidification rate is not sufficient for a fine microstructure morphology. A fine distribution of Mg2Si is possible by spray forming, where a coarsening of the particles can be avoided due to a higher solidification rate. Different aluminum alloys with high Mg2Si-content (>10 %) have successfully been produced by spray forming, extrusion and age hardening. Mg-excess as well as Si-excess has been investigated. An additional alloying with copper leads to a further increase in strength by the precipitation sequence of Al2Cu. The new light-weight aluminum alloys have been investigated regarding age hardening, physical and mechanical properties. Densities of 2.5-2.6 g/cm3 and Young´s modulus of approx. 80,000 MPa have been found. Microstructures were dense, homogeneous and of fine morphology. The yield strength of these alloys reached values of approx. 400 MPa after artificial aging, whereby only a slight decrease for the hot yield strength was observed up to a temperature of 200 °C. Applications of the new light-weight aluminum alloys can be expected where a reduced density together with a high hot yield strength would lead to a more compact design in high temperature environments, e.g. in combustion engines.

scholarly journals Spray Forming on Aluminum Alloys.

Materia Japan ◽  
1995 ◽  
Vol 34 (6) ◽  
pp. 736-740 ◽  
Author(s):  
Kazuhisa Shibue ◽  
Naoki Tokizane
Keyword(s):  
Aluminum Alloys ◽  
Spray Forming

Corrosion Protection Guidelines for Aluminum Hulls

1985 ◽  
Vol 22 (02) ◽  
pp. 155-163
Author(s):  
Chester H. Holtyn
Keyword(s):  
Corrosion Resistance ◽  
Aluminum Alloys ◽  
Corrosion Protection ◽  
Medium Size ◽  
Light Weight ◽  
Individual Consideration

Marine aluminum alloys are used in boat hulls and structures because of their corrosion resistance, strength, weldability, light weight, and ease of fabrication. Years of successful service of a wide variety of vessels have proven aluminum's suitability. However, in order to take maximum advantage of the metal's inherent resistance to corrosion, consideration should be given to the details of a vessel's design, fabrication, and operation in order to optimize its performance. This paper provides the designer, builder, and operator with some guidelines. The complexity of these subjects makes it necessary to generalize. The information is applicable to a range of small and medium-size craft, approximately 30 to 120 ft, but not to any specific type or size of hull. Larger craft with aluminum hulls or deckhouses and smaller riveted craft may require individual consideration beyond the scope of this document.

Spray forming of aluminum alloys and its composites: an overview

2008 ◽  
Vol 43 (8) ◽  
pp. 2509-2521 ◽  
Author(s):  
K. Raju ◽  
S. N. Ojha ◽  
A. P. Harsha
Keyword(s):  
Aluminum Alloys ◽  
Spray Forming

Process Mechanics in Friction Stir Welding of Magnesium Alloys: Experimental and Numerical Analysis

2012 ◽  
Vol 504-506 ◽  
pp. 735-740 ◽  
Author(s):  
Gianluca Buffa ◽  
Livan Fratini ◽  
Tobias Gnibl ◽  
Michael Wieland ◽  
Marion Merklein
Keyword(s):  
Friction Stir Welding ◽  
Aluminum Alloys ◽  
Magnesium Alloys ◽  
Weight Reduction ◽  
Light Weight ◽  
Friction Stir ◽  
Tailored Blanks ◽  
Process Mechanics ◽  
Weight Design ◽  
Different Thickness

Light weight construction is a major task within automotive and aircraft industry due to lower fuel consumption or increase the possible payload. Structural or exterior shell components are more and more manufactured out of aluminum alloys for this reason. A further weight reduction could be achieved by the substitution of aluminum alloys by magnesium alloys. Also the application of blanks with a varying thickness is a possibility to realize light weight design. To combine the advantages of weight reduction by the use of magnesium alloys and tailored welded blanks (TWBs), an effective joining technique is required. Friction Stir Welding can be used for difficult to be welded magnesium alloys to manufacture magnesium TWBs. During this process the different thickness of the two sheets can cause an unequal heat distribution below the tool, affecting material flow and therefore components strength. In the paper the main results of a numerical and experimental campaign on Friction Stir Welding of AZ31 magnesium alloy tailored blanks are presented. The numerical simulation was validated by experimental observations and the occurring bonding conditions have been analyzed in both approaches.

scholarly journals Mechanical Behavior of Aluminum Metal Matrix Composite for Wheel Hub Application

2019 ◽  
Vol 9 (2) ◽  
pp. 2146-2149
Keyword(s):  
Wear Resistance ◽  
Aluminum Alloys ◽  
Fracture Surface ◽  
Metal Matrix ◽  
Material Behavior ◽  
Light Weight ◽  
Application Area ◽  
Aluminum Metal ◽  
Aluminum Metal Matrix Composite ◽  
Alloy Wheel

Now the days of light weight application in a industry. In light weight application the material also strength of the material also important once. The material behavior load character station and application area also important once. The most of the material not suitable for the application. In this work the aluminum MMC material has been chosen in this work. The main focus of the work is aluminum alloys wheel hub area. The main problem is wear resistance. Generally the alloy wheel hub are with stand in a 50000 KM in motor cycle. Then after they are wear out. When increase the hardness of the material hence the decreasing wear out corresponding wear resistance also improved. In this work the aluminum MMC as taken different level and observed which one material as chosen for the application. Finally we are discussed with fracture surface of the materials

Sign in / Sign up

Export Citation Format

Share Document