Effects of thermal cycling on mechanical properties of AlNp/Al composite

Zhao, Min; Gao, Wu; Zhu, Di; Jiang, Longtao; Dou, Zuoyong

doi:10.1016/j.matlet.2003.12.004

Cited by 29 publications

(12 citation statements)

References 9 publications

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“…Moderate-range cycling treatment was found effective in improving yield strength and elastic limit. The elastic modulus of the composite was also significantly increased to as near as die-casting condition in moderate range and narrow range thermal cycling treatments [92] .…”

Section: Thermal Cyclingmentioning

confidence: 89%

The behaviour of aluminium matrix composites under thermal stresses

Dash

Sukumaran

Ray

2014

Science and Engineering of Composite Materials

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The present review work elaborates the behaviour of aluminium matrix composites (AMCs) under various kinds of thermal stresses. AMCs find a number of applications such as automobile brake systems, cryostats, microprocessor lids, space structures, rocket turbine housing, and fan exit guide vanes in gas turbine engines. These applications require operation at varying temperature conditions ranging from high to cryogenic temperatures. The main objective of this paper was to understand the behaviour of AMCs during thermal cycling, under induced thermal stresses and thermal fatigue. It also focuses on the various thermal properties of AMCs such as thermal conductivity and coefficient of thermal expansion (CTE). CTE mismatch between the reinforcement phase and the aluminium matrix results in the generation of residual thermal stress by virtue of fabrication. These thermal stresses increase with increasing volume fraction of the reinforcement and decrease with increasing interparticle spacing. Thermal cycling enhances plasticity at the interface, resulting in deformation at stresses much lower than their yield stress. Low and stable CTE can be achieved by increasing the volume fraction of the reinforcement. The thermal fatigue resistance of AMC can be increased by increasing the reinforcement volume fraction and decreasing the particle size. The thermal conductivity of AMCs decreases with increase in reinforcement volume fraction and porosity.

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Section: Thermal Cyclingmentioning

confidence: 89%

The behaviour of aluminium matrix composites under thermal stresses

Dash

Sukumaran

Ray

2014

Science and Engineering of Composite Materials

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“…It was found that it shows tensile strength of 326.93 MPa of the original laminate without any exposure to thermal cycling. After ten thermal cycles, its tensile strength becomes 336.36 MPa with an increase of 2.88% with respect to initial value [19]. After thirty thermal cycles, its tensile strength becomes 319 MPa with a decrease of 2.43% with respect to initial value.…”

Section: Tensile Propertiesmentioning

confidence: 91%

“…Min Zhao [19] studied the different ranges of thermal cycling treatments and their effect on the mechanical properties of squeeze casted fabricated AlNp/Al composites. The cycling ranging was between room temperature and 160, 230, & 356ºC, holding for 2 hours at a higher temperature, and for 15 minutes at lower temperatures.…”

Section: Introductionmentioning

confidence: 99%

Effect of Thermal Cycling on the Tensile Behavior of CF/AL Fiber Metal Laminates

Noor

Pasha

Wakeel

et al. 2017

Adv. Sci. Technol. Res. J.

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The objective of this research work was to estimate the effect of thermal cycling on the tensile behavior of CARALL composites. Fiber metal laminates (FMLs), based on 2D woven carbon fabric and 2024-T3 Alclad aluminum alloy sheet were manufactured by pressure molding technique followed by hand layup method. Before fabrication, aluminum sheets were anodized with phosphoric acid to produce a micro porous alumina layer on surface. This microporous layer is beneficial to produce a strong bond between the metal and fiber surfaces in FMLs. The effect of thermal cycling (-65 to +70ºC) on the tensile behavior of Cf/Al based FML was studied. Tensile strength was increased after 10 thermal cycles, but it was decreased slightly to some extent after 30 and 50 thermal cycles. Tensile modulus also show similar behavior as that of tensile strength.

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“…Thermal cycling led to increase in tensile strength, elastic limit and yield strength, and over all properties stability of the composites which is in accordance with our case, where flexural strength increases with thermal shock treatment. [23] Bhattacharya et al have reported increase in microhardness and decrease in density (due to formation of voids) after thermal cycling in Al-SiC composites. [24] Cracks at the interface have been observed due to thermal strain in the composite in the clustered region of reinforcement.…”

Section: A Thermal Shockmentioning

confidence: 99%