Sintering behaviour of cemented tungsten carbide and steel bilayer

The target of processing bimaterial components by cost effective powder metallurgy is to combine unique properties from different parts of the component. Differential shrinkage rate and more often, radial mismatch which is more consistent in bilayer owing to sintering conditions (time, rate, tempera...

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Main Authors: Ojo-Kupoluyi, Oluwatosin Job, Mohd Tahir, Suraya, Hanim, Mohamed Ariff Azmah, Baharudin, B. T. Hang Tuah, Matori, Khamirul Amin, Anuar, Mohd Shamsul
Format: Article
Language:English
Published: Trans Tech Publications 2017
Online Access:http://psasir.upm.edu.my/id/eprint/63229/
http://psasir.upm.edu.my/id/eprint/63229/1/Sintering%20behaviour%20of%20cemented%20tungsten%20carbide%20and%20steel%20bilayer.pdf
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author Ojo-Kupoluyi, Oluwatosin Job
Mohd Tahir, Suraya
Hanim, Mohamed Ariff Azmah
Baharudin, B. T. Hang Tuah
Matori, Khamirul Amin
Anuar, Mohd Shamsul
author_facet Ojo-Kupoluyi, Oluwatosin Job
Mohd Tahir, Suraya
Hanim, Mohamed Ariff Azmah
Baharudin, B. T. Hang Tuah
Matori, Khamirul Amin
Anuar, Mohd Shamsul
author_sort Ojo-Kupoluyi, Oluwatosin Job
building UPM Institutional Repository
collection Online Access
description The target of processing bimaterial components by cost effective powder metallurgy is to combine unique properties from different parts of the component. Differential shrinkage rate and more often, radial mismatch which is more consistent in bilayer owing to sintering conditions (time, rate, temperature etc.) is known to compromise the interfacial bond strength and integrity of these components. Therefore, the aim of this study is to analyze the sintering compatibility and evaluate the mismatch strain in cemented tungsten carbide (WC-Fe-C) and steel (Fe-W-C) bilayer processed through powder metallurgy (PM) to combine the hardness and toughness properties applicable in machining industries for drilling tools. Through geometrical measurement, mismatch strain rate between layers at different sintering temperatures was calculated and a value as low as 13.7% was observed at the interfacial zone of MC–0.2 specimen sintered at 1280°C indicating a stronger bond between layers compared to those sintered at 1290°C and 1295°C where a huge mismatch was found increasing the tendency for delamination.
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spelling upm-632292018-09-26T01:45:39Z http://psasir.upm.edu.my/id/eprint/63229/ Sintering behaviour of cemented tungsten carbide and steel bilayer Ojo-Kupoluyi, Oluwatosin Job Mohd Tahir, Suraya Hanim, Mohamed Ariff Azmah Baharudin, B. T. Hang Tuah Matori, Khamirul Amin Anuar, Mohd Shamsul The target of processing bimaterial components by cost effective powder metallurgy is to combine unique properties from different parts of the component. Differential shrinkage rate and more often, radial mismatch which is more consistent in bilayer owing to sintering conditions (time, rate, temperature etc.) is known to compromise the interfacial bond strength and integrity of these components. Therefore, the aim of this study is to analyze the sintering compatibility and evaluate the mismatch strain in cemented tungsten carbide (WC-Fe-C) and steel (Fe-W-C) bilayer processed through powder metallurgy (PM) to combine the hardness and toughness properties applicable in machining industries for drilling tools. Through geometrical measurement, mismatch strain rate between layers at different sintering temperatures was calculated and a value as low as 13.7% was observed at the interfacial zone of MC–0.2 specimen sintered at 1280°C indicating a stronger bond between layers compared to those sintered at 1290°C and 1295°C where a huge mismatch was found increasing the tendency for delamination. Trans Tech Publications 2017-06 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/63229/1/Sintering%20behaviour%20of%20cemented%20tungsten%20carbide%20and%20steel%20bilayer.pdf Ojo-Kupoluyi, Oluwatosin Job and Mohd Tahir, Suraya and Hanim, Mohamed Ariff Azmah and Baharudin, B. T. Hang Tuah and Matori, Khamirul Amin and Anuar, Mohd Shamsul (2017) Sintering behaviour of cemented tungsten carbide and steel bilayer. Key Engineering Materials, 740. pp. 60-64. ISSN 1013-9826; ESSN: 1662-9795 https://www.scientific.net/KEM.740.60 10.4028/www.scientific.net/KEM.740.60
spellingShingle Ojo-Kupoluyi, Oluwatosin Job
Mohd Tahir, Suraya
Hanim, Mohamed Ariff Azmah
Baharudin, B. T. Hang Tuah
Matori, Khamirul Amin
Anuar, Mohd Shamsul
Sintering behaviour of cemented tungsten carbide and steel bilayer
title Sintering behaviour of cemented tungsten carbide and steel bilayer
title_full Sintering behaviour of cemented tungsten carbide and steel bilayer
title_fullStr Sintering behaviour of cemented tungsten carbide and steel bilayer
title_full_unstemmed Sintering behaviour of cemented tungsten carbide and steel bilayer
title_short Sintering behaviour of cemented tungsten carbide and steel bilayer
title_sort sintering behaviour of cemented tungsten carbide and steel bilayer
url http://psasir.upm.edu.my/id/eprint/63229/
http://psasir.upm.edu.my/id/eprint/63229/
http://psasir.upm.edu.my/id/eprint/63229/
http://psasir.upm.edu.my/id/eprint/63229/1/Sintering%20behaviour%20of%20cemented%20tungsten%20carbide%20and%20steel%20bilayer.pdf