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Effect of heating time on hardness properties of laser clad gray cast iron surface

B., Norhafzan and S. N., Aqida and F., Mifthal and A. R., Zulhishamuddin and I., Ismail (2017) Effect of heating time on hardness properties of laser clad gray cast iron surface. In: 4th Asia Pacific Conference on Manufacturing Systems and the 3rd International Manufacturing Engineering Conference, APCOMS-iMEC 2017, 7-8 December 2017 , Yogyakarta, Indonesia. pp. 1-5., 319 (1). ISSN 1757-8981 (Print), 1757-899X (Online)

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Abstract

This paper presents effect of heating time on cladded gray cast iron. In this study, the effect of heating time on cladded gray cast iron and melted gray cast iron were analysed. The gray cast iron sample were added with mixed Mo-Cr powder using laser cladding technique. The mixed Mo and Cr powder was pre-placed on gray cast iron surface. Modified layer were sectioned using diamond blade cutter and polish using SiC abrasive paper before heated. Sample was heated in furnace for 15, 30 and 45 minutes at 650 °C and cool down in room temperature. Metallographic study was conduct using inverted microscope while surface hardness properties were tested using Wilson hardness test with Vickers scale. Results for metallographic study showed graphite flakes within matrix of pearlite. The surface hardness for modified layer decreased when increased heating time process. These findings are significant to structure stability of laser cladded gray cast iron with different heating times.

Item Type: Conference or Workshop Item (Lecture)
Uncontrolled Keywords: Binary alloys; Chromium alloys; Hardness; Heating; Metallography
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TS Manufactures
Faculty/Division: Faculty of Manufacturing Engineering
Faculty of Mechanical Engineering
Depositing User: Mrs. Neng Sury Sulaiman
Date Deposited: 21 Dec 2018 07:57
Last Modified: 21 Dec 2018 07:57
URI: http://umpir.ump.edu.my/id/eprint/23334
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