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Effect of notching face on fracture toughness of green metal powder compacts


Citation

Alabi, A. A. and Mohd Tahir, Suraya and Zahari, Nur Ismarrubie and Mohamed Ariff, Azmah Hanim and Anuar, Mohd Shamsul (2016) Effect of notching face on fracture toughness of green metal powder compacts. Global Journal of Engineering and Technology Review, 1 (1). pp. 49-56. ISSN 0128-2905

Abstract / Synopsis

Objective: To predict the failure of a powder compacted component, it is important to understand how its physical and mechanical properties varies in its green state. The variation of fracture toughness of iron and copper powder compact with compaction pressures, along the longitudinal axes of their green compacts is presented in this paper. Methodology/Technique: Mode I fracture toughness, KIC, was determined for specimens compacted uniaxially, using the diametrical compression technique by comparing the effect of notching a specimen on its top surface against notching it on the bottom. Findings: Results showed that specimens notched on the top surface had higher KIC values for both powders at all compaction pressures. The pair of KIC values was more stable for the copper compacts than for iron compacts.


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Additional Metadata

Item Type: Article
Subject: Green compacts; Uniaxial compaction; Diametrical compression technique; Fracture toughness
Divisions: Faculty of Engineering
Publisher: Global Academy of Training & Research (GATR) Enterprise
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 26 Feb 2018 15:23
Last Modified: 26 Feb 2018 15:23
URI: http://psasir.upm.edu.my/id/eprint/54036
Statistic Details: View Download Statistic

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