Effect of end chills, reinforcement content and carburization on the hardness of LM25-borosilicate glass particulate composite

A. Hiremath, A. AmarMurthy, S. V. Pranavathmaja, A. Jajodia, R. Sreenath

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Aluminium metal matrix composites (AMCs) are widely employed in aerospace and automobile applications. Thus, they are required to operate reliably under a severe corrosive, high temperature and carbonaceous environments, without undergoing any deterioration in their mechanical properties. The paper is the compilation of the experimental results and analysis carried out to investigate the effect of different end chills, reinforcement content and carburization on the LM25 aluminium alloy reinforced with borosilicate glass powder. The composites are prepared via stir casting route by varying the weight percent (wt.%) of the reinforcement starting from 3 wt.% and going up till 12 wt.% with an increment of 3wt.% in every step. To obtain quality castings, end chills are placed within the sand mould. The specimens drawn from the chill-end of the castings are pack carburized in a muffle furnace for a set duration of time. The hardness of the specimens before and after carburization is recorded. The analysis of the results illustrates that the hardness increases linearly with the increase in the reinforcement content within the matrix from 3 wt.% up to 9 wt.%. It is also evident that the Volumetric Heat Capacities (VHC) of the chill material bears a strong effect not only on the quality of the castings produced but also on the hardness of the AMCs. Carburization leads to carbon deposition on the surface causing a change in the hardness of the specimens.

Original languageEnglish
Pages (from-to)4203-4215
Number of pages13
JournalJournal of Mechanical Engineering and Sciences
Volume12
DOIs
Publication statusPublished - 01-12-2018

Fingerprint

Borosilicate glass
Reinforcement
Hardness
Composite materials
Aluminum
Metals
Automobiles
Specific heat
Deterioration
Aluminum alloys
Casting
Furnaces
Sand
Powders
Mechanical properties
Carbon
Castings
Temperature

All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

@article{aa573392b0a14907aa8f8354d49e47a1,
title = "Effect of end chills, reinforcement content and carburization on the hardness of LM25-borosilicate glass particulate composite",
abstract = "Aluminium metal matrix composites (AMCs) are widely employed in aerospace and automobile applications. Thus, they are required to operate reliably under a severe corrosive, high temperature and carbonaceous environments, without undergoing any deterioration in their mechanical properties. The paper is the compilation of the experimental results and analysis carried out to investigate the effect of different end chills, reinforcement content and carburization on the LM25 aluminium alloy reinforced with borosilicate glass powder. The composites are prepared via stir casting route by varying the weight percent (wt.{\%}) of the reinforcement starting from 3 wt.{\%} and going up till 12 wt.{\%} with an increment of 3wt.{\%} in every step. To obtain quality castings, end chills are placed within the sand mould. The specimens drawn from the chill-end of the castings are pack carburized in a muffle furnace for a set duration of time. The hardness of the specimens before and after carburization is recorded. The analysis of the results illustrates that the hardness increases linearly with the increase in the reinforcement content within the matrix from 3 wt.{\%} up to 9 wt.{\%}. It is also evident that the Volumetric Heat Capacities (VHC) of the chill material bears a strong effect not only on the quality of the castings produced but also on the hardness of the AMCs. Carburization leads to carbon deposition on the surface causing a change in the hardness of the specimens.",
author = "A. Hiremath and A. AmarMurthy and Pranavathmaja, {S. V.} and A. Jajodia and R. Sreenath",
year = "2018",
month = "12",
day = "1",
doi = "10.15282/jmes.12.4.2018.16.0362",
language = "English",
volume = "12",
pages = "4203--4215",
journal = "Journal of Mechanical Engineering and Sciences",
issn = "2289-4659",
publisher = "Faculty of Mechanical Engineering, Universiti Malaysia Pahang",

}

Effect of end chills, reinforcement content and carburization on the hardness of LM25-borosilicate glass particulate composite. / Hiremath, A.; AmarMurthy, A.; Pranavathmaja, S. V.; Jajodia, A.; Sreenath, R.

In: Journal of Mechanical Engineering and Sciences, Vol. 12, 01.12.2018, p. 4203-4215.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effect of end chills, reinforcement content and carburization on the hardness of LM25-borosilicate glass particulate composite

AU - Hiremath, A.

AU - AmarMurthy, A.

AU - Pranavathmaja, S. V.

AU - Jajodia, A.

AU - Sreenath, R.

PY - 2018/12/1

Y1 - 2018/12/1

N2 - Aluminium metal matrix composites (AMCs) are widely employed in aerospace and automobile applications. Thus, they are required to operate reliably under a severe corrosive, high temperature and carbonaceous environments, without undergoing any deterioration in their mechanical properties. The paper is the compilation of the experimental results and analysis carried out to investigate the effect of different end chills, reinforcement content and carburization on the LM25 aluminium alloy reinforced with borosilicate glass powder. The composites are prepared via stir casting route by varying the weight percent (wt.%) of the reinforcement starting from 3 wt.% and going up till 12 wt.% with an increment of 3wt.% in every step. To obtain quality castings, end chills are placed within the sand mould. The specimens drawn from the chill-end of the castings are pack carburized in a muffle furnace for a set duration of time. The hardness of the specimens before and after carburization is recorded. The analysis of the results illustrates that the hardness increases linearly with the increase in the reinforcement content within the matrix from 3 wt.% up to 9 wt.%. It is also evident that the Volumetric Heat Capacities (VHC) of the chill material bears a strong effect not only on the quality of the castings produced but also on the hardness of the AMCs. Carburization leads to carbon deposition on the surface causing a change in the hardness of the specimens.

AB - Aluminium metal matrix composites (AMCs) are widely employed in aerospace and automobile applications. Thus, they are required to operate reliably under a severe corrosive, high temperature and carbonaceous environments, without undergoing any deterioration in their mechanical properties. The paper is the compilation of the experimental results and analysis carried out to investigate the effect of different end chills, reinforcement content and carburization on the LM25 aluminium alloy reinforced with borosilicate glass powder. The composites are prepared via stir casting route by varying the weight percent (wt.%) of the reinforcement starting from 3 wt.% and going up till 12 wt.% with an increment of 3wt.% in every step. To obtain quality castings, end chills are placed within the sand mould. The specimens drawn from the chill-end of the castings are pack carburized in a muffle furnace for a set duration of time. The hardness of the specimens before and after carburization is recorded. The analysis of the results illustrates that the hardness increases linearly with the increase in the reinforcement content within the matrix from 3 wt.% up to 9 wt.%. It is also evident that the Volumetric Heat Capacities (VHC) of the chill material bears a strong effect not only on the quality of the castings produced but also on the hardness of the AMCs. Carburization leads to carbon deposition on the surface causing a change in the hardness of the specimens.

UR - http://www.scopus.com/inward/record.url?scp=85060115263&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85060115263&partnerID=8YFLogxK

U2 - 10.15282/jmes.12.4.2018.16.0362

DO - 10.15282/jmes.12.4.2018.16.0362

M3 - Article

VL - 12

SP - 4203

EP - 4215

JO - Journal of Mechanical Engineering and Sciences

JF - Journal of Mechanical Engineering and Sciences

SN - 2289-4659

ER -