Characterization of a powder metallurgy SiC/Cu–Al composite

Wang, Hailong; Zhang, Rui; Hu, Xing; Wang, Chang‐An; Yong, Huang

doi:10.1016/j.jmatprotec.2007.06.002

Cited by 99 publications

(34 citation statements)

References 26 publications

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“…Moreover, good wettability properties have a favorable influence on microstructure of the alloy [7]. In addition to various ceramic particulates [8], [9], B 4 C is also used in the design of the metal matrix composites (MMC) [6], [10] and a better mechanical strength can be obtained [11]. Because of its unique strength and corrosion resistance, Al7075 alloys, which have been used in aviation and space industry, are both used commercially and become the center of interest for research and development Works.…”

Section: Introductionmentioning

confidence: 99%

Effect of sub-Zero Treatment on Ageing of Aluminium Composite

Taşkesen¹,

Aksöz²,

Özdemir³

2018

IJMMM

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Abstract-In this study, B4C reinforced 7075 Al composites were fabricated by cold and hot pressing of Al, Cu, Zn and Mg elemental powders. Two different reinforcement rates (10% and 15%) were used for the composites. In order to examine the structural and mechanical properties, different sub-zero and ageing processes were applied to the composites. Sub-zero and stepped ageing treatments were applied after solutionizing at 470 o C for different time periods. It was found that hardness of the composite was substantially increased and micro structure was changed. Findings show that, general strength of the material significantly increased particularly after solutionization process.Index Terms-B4C, aluminium composite, sub-zero treatment, ageing.

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Section: Introductionmentioning

confidence: 99%

Effect of sub-Zero Treatment on Ageing of Aluminium Composite

Taşkesen¹,

Aksöz²,

Özdemir³

2018

IJMMM

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“…Also, good wettability properties have a favourable influence on the resulting microstructure of the alloys [7]. On the other hand, among those other traditionally selected ceramic particulates [8,9], B 4 C is mostly preferred in the micro-designing of Al-based composites to attain higher mechanical strength levels [6,10,11]. Compared to Al 2XXX series, strength and corrosion resistance of Al 7XXX alloys are mostly used commercially in aircraft and space industry and become the main concern of in-*Corresponding author: tel.…”

Section: Introductionmentioning

confidence: 99%

The effect of cryogenic treatment on ageing behaviour of B4C reinforced 7075 aluminium composites

TASKESEN¹,

Aksöz²,

Özdemir³

2017

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In the current study, an effect of cryogenic treatment on the ageing of a B4C particulate reinforced 7075 aluminium alloy was investigated to identify changes in hardness with respect to ageing time. To achieve this, first, 10, 15, and 25 % by weight B4C particulate containing 7075 Al composite specimens were produced by hot pressing of Al, Cu, Zn, and Mg elemental powders. Next, cryogenic treatment and multiple steps of tempering were adapted to several samples. Such as, after solutionizing at 470• C and sub-zero treatment at -146• C, successive intervals of artificial ageing at 120• C for different time periods were applied. During the heat treatment, hardness values were measured after each interval. Findings reveal that, particularly after solutionization, cryogenic treatment before ageing yields high hardness values. However, the hardness of the composite material exceeds this level during ageing treatment, mainly after long ageing times.K e y w o r d s:

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“…Such interaction between surfaces gives rise to friction. Wang et al [19] studied the effect of additives, such as copper (Cu) and silicon carbide (SiC), on Al-based alloys. Aluminum alloy matrices, with particulates of Al 2 O 3 or SiC reinforcements, possess higher strength and stiffness as well as, greater wear resistance and improved high properties [20,21].…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Corrosion Behavior of Al-Zn-Cr Family Alloys

Nassef

El-Garaihy

El-Hadek

2017

Metals

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Aluminum base alloys containing chromium (Cr) and zinc (Zn) were produced using extrusion and powder metallurgy techniques. Cr additions ranged between 5 to 10 wt. %, while Zn was added in an amount between 0 and 20 wt. %. Heat treatment processes were performed during powder metallurgy process, at different temperatures, followed by water quenching. Similar alloys were extruded with an extrusion ratio of 4.6 to get proper densification. Optical microscopy was used for microstructure investigations of the alloys investigated. The element distribution microstructure study was carried out using the Energy Dispersive X-ray analysis method. Hardness and tensile properties of the investigated alloys have been examined. Wear resistance tests were carried out and the results were compared with these of the Al-based bulk alloys. Results showed that the aluminum base alloys, containing 10 wt. % Cr and heat treated at 500 • C for one hour followed by water quenching, exhibited the highest wear resistance and better mechanical properties.

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Characterization of a powder metallurgy SiC/Cu–Al composite

Cited by 99 publications

References 26 publications

Effect of sub-Zero Treatment on Ageing of Aluminium Composite

Effect of sub-Zero Treatment on Ageing of Aluminium Composite

The effect of cryogenic treatment on ageing behaviour of B4C reinforced 7075 aluminium composites

Mechanical and Corrosion Behavior of Al-Zn-Cr Family Alloys

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