Physico-compression, sliding wear and energy absorption properties of Zn/Mg infiltrated closed cell aluminum foam

Bisht, Ankur; Gangil, Brijesh; Patel, Vinay Kumar

doi:10.1088/2053-1591/ab3b80

Cited by 6 publications

(2 citation statements)

References 19 publications

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“…At constant pressure due to reaction, molten metal starts expanding slowly and gradually and fills the foaming vessel. After cooling, the solid metal foam is released and cut into desired shape for further processing [24].…”

Section: Melt Route Methodsmentioning

confidence: 99%

Selection of blowing agent for metal foam production: A review

2020

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Metal foams are cellular solids in which gas is uniformly distributed throughout the metal matrix. One of the cheapest ways of evolving the gas is introducing the blowing agent in parent metal in liquid state. A blowing agent is defined as a material that decomposes under the presence of heat and releases gas which then propels the foaming process. The quality of final foam is influenced by several parameters such as composition, size and volume fraction of the blowing agent used. Different chemicals which can evolve gases such as carbonates and metal hydrides fit into the description of blowing agent. Hydrides during decomposition releases H2 gas while carbonates release CO2 or CO gases which are responsible for foaming process. To produce good quality metal foam, the blowing agent must be a compound that does not detriment the foam metallic matrix and must have decomposition temperature closed to the melting point of the metal. This review paper covers the manufacturing processes which uses blowing agent in the formation of metal foam. Furthermore, the paper provides the detail information about the foaming physics, blowing agentâ€™s type and selection criteria of blowing agents to produce amorphous metal foam.

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Section: Melt Route Methodsmentioning

confidence: 99%

Selection of blowing agent for metal foam production: A review

2020

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“…Xia et al [16] added Mn particles to the melt to improve mechanical and physical properties. Ankur Bisht et al [17] added Zn and Mg particles in varying percentages to obtain better physical and mechanical properties. Plenty of work has been reported on enhancing mechanical properties, so it is good to observe another dimension of metal foams.…”

Section: Introductionmentioning

confidence: 99%

Effect of zinc addition on the tribological behavior of aluminum-based close cell metal foams

Bisht¹,

Gangil²,

Patel³

et al. 2023

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Metal foams are a unique material that is gaining attraction in various industries due to their multifunctional features. This work focuses on understanding the tribological behavior of aluminum-based close-cell metal foams where Zn is added as reinforcement in different weight percentages (0, 0.5, and 1 wt.%). Dry sliding wear tests are performed at varying loads (5, 10, 15, and 20 N) and sliding distances (1000, 2000, 3000, and 4000 m). During the tests, two limiting conditions are considered: the sliding speed of the rotating disc and its track diameter, which are set at 2.5 m s −1 and 10 cm, respectively. The result reveals that specific wear rate (SWR) is a function of porosity, which increases with an increase in porosity. It was discovered that wear occurs when asperities of varying hardness come into contact at lower stress levels. However, at greater load values, the mechanism shifts from abrasion to plastic flow and delamination. K e y w o r d s : metal foam, specific wear rate (SWR), SEM

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