Reza, M. S. and S. N., Aqida and I., Ismail (2018) Laser surface modification of Yttria Stabilized Zirconia (YSZ) thermal barrier coating on AISI H13 tool steel substrate. 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. 1-4., 319 (1). ISSN 17578981
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30. Laser modification of YSZ thermal barrier coating on AISI H13 tool steel substrate.pdf Available under License Creative Commons Attribution. Download (12kB) | Preview |
Abstract
This paper presents laser surface modification of plasma sprayed yttria stabilized zirconia (YSZ) coating for minimum surface roughness and improved hardness properties. Laser surface modification on plasma sprayed YSZ was conducted using 300W JK300HPS Nd: YAG laser at pulse mode. Parameters varied were laser power and pulse frequency at constant residence time. The YSZ coating surface roughness was analysed using two-dimensional Mitutoyo surface roughness tester while hardness properties were measured using micro Vickers indenter. Micrographs of coating cross-sectional area was captured using IM7000 inverted optical microscope. Surface roughness of laser modified YSZ coating layer decreased significantly with increasing laser power. The re-melted YSZ coating surface exhibited higher hardness properties compared to the as-sprayed sample condition. These findings were significant to enhance thermal barrier coating surface integrity for high temperature die applications.
| Item Type: | Conference or Workshop Item (Lecture) |
|---|---|
| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | Laser modification; Thermal barrier |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Faculty/Division: | Faculty of Mechanical Engineering |
| Depositing User: | Pn. Hazlinda Abd Rahman |
| Date Deposited: | 12 Jul 2018 04:21 |
| Last Modified: | 01 Oct 2018 07:09 |
| URI: | http://umpir.ump.edu.my/id/eprint/21022 |
| Download Statistic: | View Download Statistics |
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