Author response for "Optimization of wear parameters of Mg-(5.6Ti+3Al)-2.5B4C composite"

Proceedings of the Institution of Mechanical Engineers, Part J:

2020

In this work, the dry sliding wear behaviour of recursively friction stir processed AA7075 was investigated using a pin-on-disc wear testing apparatus. The microstructure of the processed specimen was probed using optical microscopy, transmission electron microscopy and atomic force microscopy. Experiments were conducted using Taguchi experimental design by varying three different parameters like load, sliding velocity and sliding distance, and the analysis of variance was performed to identify the influence of the parameters over the wear rate. From the main effect plot, the combination of 9.81 N of load, 2 m/s of sliding velocity and a sliding distance of 2000 m was identified as the optimum levels that minimize the wear rate. The regression model was developed to calculate the wear rate, and the validation test was performed with the optimum parameter combination and compared with the experimental results. Wear tracks were examined using field-emission scanning electron microscopy to identify the type of wear mechanism.

Section: Design Of Experiments By Taguchi Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optimization of dry sliding wear parameters of recursive friction stir processed aluminium 7075 alloy

Girish

Proceedings of the Institution of Mechanical Engineers, Part J:

2020

“…Dry sliding wear experiments were performed under ambient conditions according to ASTM: G99-05 standard 28,30,31 on a pin-on-disc wear testing setup (NANOTECH) as shown in Figure 3. Wear pins of 6 mm diameter were extracted from the core region of the stir zone and polished using standard grade emery sheets.…”

Section: Dry Sliding Wear Examinationmentioning

confidence: 99%

A study on the microstructure, hardness, and tribological behavior of aluminum-based metal–matrix composite fabricated through recursive friction stir processing

Girish

Proceedings of the Institution of Mechanical Engineers, Part L:

2020

In this work, an Al–Zn–Mg–Cu/TiC metal–matrix composite was fabricated through recursive friction stir processing, and its microstructure, hardness, and tribological properties were investigated. Microstructure examination revealed a homogeneous dispersion of TiC particles in the matrix after six recursive passes. The grains were significantly refined and microhardness of the composite improved due to the presence of TiC particles. Friction coefficient and wear rate of the composite went up with an increase in the applied load and dropped significantly at higher sliding velocities. The morphology of the wear specimens experimented under different testing conditions was analyzed and the corresponding wear mechanisms discussed.

“…To identify the best set of elements with the given criteria by the mathematical formulations is referred as optimization, which widely implemented in all domains such as material characterization, machining, welding, forming, tribology, and so on (Ravichandran et al , 2016; Ravichandran and Anandakrishnan, 2015; Sahu et al , 2014; Saravanan et al , 2018; Selvan et al , 2018; Shantharaman et al , 2018; Mahamani et al , 2012). Taguchi is one of the effective methods, which was used to investigate the influence of wear parameters on the wear behaviour and also to optimize the parameters (Baskaran et al , 2014; Sathish et al , 2019). The literature explored the significance of superalloy Inconel 718 under elevated temperature conditions.…”

Section: Introductionmentioning

confidence: 99%

Dry sliding wear behavior of Inconel 718 additively manufactured by DMLS technique

Sathish

Duraiselvam

et al. 2020

ILT

Purpose Aerospace and defence industries use the materials having better properties at elevated temperatures, and Inconel 718 is one of that. The complexity in realizing complex and intricate shapes necessitate the product realization through additive manufacturing. This paper aims to investigate the wear behaviour of additive manufactured material. Design/methodology/approach The wear behaviour of additively manufactured Inconel 718 samples through direct metal laser sintering process at three different build orientations was experimentally investigated using a standard pin-on-disc wear tester. Findings Among the varied wear parameters, the load was identified as the most influencing parameter on the wear rate. In addition, the post-failure analysis of the worn surface of the pins under the scanning electron microscopy revealed the presence of various wear mechanisms. Originality/value Almost, the industries are now focussed on their production through additive manufacturing owing to its advantages. The present work displays the wear behaviour of the additive manufactured Inconel 718 and its associated wear mechanisms. Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-08-2019-0322.