Processing of Aluminides

Sikka, V.K.

doi:10.1007/978-1-4613-1215-4_14

Cited by 9 publications

(3 citation statements)

References 12 publications

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“…The poor performance of Ni interlayer welds is thought to be due to the presence of intermetallics such as Al 3 Ni that is highly brittle. 16 Cu interlayer welds containing CuAl 2 , CuAl intermetallics appear to be softer compared to Ni interlayer welds. There appears to be strong correlation between strength and hardness, which are observed to be inversely related.…”

Section: Discussionmentioning

confidence: 89%

Role of electroplated interlayer in continuous drive friction welding of AA6061 to AISI 304 dissimilar metals

Reddy¹,

Rao²,

Mohandas³

2008

Science and Technology of Welding and Joining

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Aluminium austenitic stainless steel joints find application in cryogenic engines, spacecrafts and automobiles. This dissimilar material combination is unweldable by conventional fusion welding due to a tendency for brittle intermetallic formation. Solid state welding processes such as friction welding are reported to be employed in such situations. This paper deals with continuous drive friction welding of AA6061 Al alloy to AISI 304 austenitic stainless steel. Direct welding of this combination resulted in brittle joints with 0u bend angle due to the formation of Fe 2 Al 5 . To alleviate this problem welding was carried out by incorporating Cu, Ni and Ag as diffusion barrier interlayers. The interlayer was incorporated by electroplating. Welds with Cu and Ni interlayer were also brittle due to the presence of CuAl 2 and NiAl 3 . Ag acted as an effective diffusion barrier for Fe avoiding the formation of Fe 2 Al 5 . Therefore welds with Ag interlayer were stronger and ductile and could be bent to an angle of 100u.

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Section: Discussionmentioning

confidence: 89%

Role of electroplated interlayer in continuous drive friction welding of AA6061 to AISI 304 dissimilar metals

Reddy¹,

Rao²,

Mohandas³

2008

Science and Technology of Welding and Joining

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“…The Fe 3 Al-based intermetallic alloys have attracted enormous interests as high-temperature structural materials owing to their cost effectiveness, low density, and good resistance to aqueous and gaseous corrosion [1]. Their good corrosion resistance is attributed to the formation of Al 2 O 3 layer on the surface.…”

Section: Introductionmentioning

confidence: 99%

Corrosion of Fe3Al-4Cr Alloys at 1000°C in N2-0.1%H2S Gas

Shi

Lee

2018

KEM

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Pure Fe3Al and Fe3Al+4%Cr alloys were corroded at 1000 °C for up to 200 h in N2-0.1%H2S-mixed gas in order to study their corrosion behavior in H2S-containing atmosphere. The formed scales consisted primarily of α-Al2O3, FeAl2O4, and Fe2O3. In these oxide scales, hydrogen and sulfur dissolved according to the reaction; H2S→2H+S. Corrosion products of Cr were not identified in the scales from the XRD analysis, indicating that Cr dissolved in the oxide scales. Fe3Al+4%Cr alloy displayed poorer corrosion resistance than Fe3Al alloy, indicating that chromium accelerated the corrosion rates of Fe3Al alloys.

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“…An improved performance requirement in the automotive industry can be achieved with very lofty performance in a light-weight like composite materials. Constructions of lightweight alloys, based on Al, Mg and Ti by better mechanical and metallurgical properties, require pioneering technique [2]. Light-weight materials preserve to build an important contribution to improved fuel utilization, as 10% decrease in vehicle weight translates near a 5.5% expansion in energy saving [3].…”

Section: Introductionmentioning

confidence: 99%

Effect of Hardness on the Wear Behavior of Hybrid Metal Matrix Composites

Umanath

Selvamani

Palanikumar

et al. 2014

AMR

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Aerospace industry and automobile industries are enhanced performance necessary for materials with better qualities compare to conservative materials. In automotive areas, this is predominantly factual for power train employed as conflicting to body application. For each kind of appliance, description such as hardness of the material, wear resistance, temperature withstands ability, plasticity, fracture, fatigue strength, etc. It must be as high as possible, while parameters such as density and cost must be minimized; the latter is of general concern for automobile use and relatively inexpensive light aircraft. Because of their low density, the light metals based on aluminum, magnesium, and titanium are particularly attractive for both types of applications. In this paper, advanced material of Al6061/SiC/Al2O3hybrid composites is discussed, followed by a consideration of advanced material specifically in aerospace and automotive applications. Processing the lightweight metal, with enhanced hardness properties is presented.

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Processing of Aluminides

Cited by 9 publications

References 12 publications

Role of electroplated interlayer in continuous drive friction welding of AA6061 to AISI 304 dissimilar metals

Role of electroplated interlayer in continuous drive friction welding of AA6061 to AISI 304 dissimilar metals

Corrosion of Fe<sub>3</sub>Al-4Cr Alloys at 1000°C in N<sub>2</sub>-0.1%H<sub>2</sub>S Gas

Effect of Hardness on the Wear Behavior of Hybrid Metal Matrix Composites

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