Farha Mizana Shamsudin, and Shahidan Radiman, and Yusof Abdullah, and Nasri A. Hamid, (2018) The effect of annealing to the hardness of high Y2O3-Oxide dispersion strengthened (ODS) ferritic steels. Sains Malaysiana, 47 (1). pp. 189-193. ISSN 0126-6039
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Official URL: http://www.ukm.my/jsm/english_journals/vol47num1_2...
Abstract
The purpose of this study was to investigate the effect of annealing to the hardness of high Y2O3-oxide dispersion strengthened (ODS) ferritic steels. The samples were prepared by mechanical alloying method followed by Cold Isostatic Pressing (CIP). After compaction process, the samples were sintered at 1100°C for 1 h in a tube furnace. The crystal structure and morphology of samples were analyzed by X-ray Diffraction (XRD) measurement and characterized by using field emission scanning electron microscope (FESEM), respectively. The hardness of samples was measured by using a micro-Vickers hardness tester with a load of 200 gf at annealing temperature of 600°C, 800°C and 1000°C, respectively. The Vickers hardness value (HV0,2) versus annealing temperature graph showed that the hardness of all samples started to decrease at temperature of 600°C due to grain growth. The hardness value of all samples (1Y and 5Y) identified at this annealing temperature is 855 HV0,2 and 808 HV0, 2, respectively.
| Item Type: | Article |
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| Keywords: | Electron microscopy; Hardness measurement; Mechanical alloying; ODS ferritic steel; XRD measurement |
| Journal: | Sains Malaysiana |
| ID Code: | 11995 |
| Deposited By: | ms aida - |
| Deposited On: | 14 Aug 2018 06:16 |
| Last Modified: | 17 Aug 2018 09:01 |
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