Corrosion Behavior of Material Based Zirconium Alloys

Fajarin, Rindang and -, Triwikantoro (2009) Corrosion Behavior of Material Based Zirconium Alloys. Proceeding International Conference On Materials And Metalurgical Techmology 2009 ( ICOMMET 2009).

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The corrosion behaviour of nanocrystal material based on Zirconium Zr65Cu17,5Ni10Al7,5, Zr68Cu14Ni11Al7, Zr69,5Cu12Ni11Al7,5 and Zr53,1Cu23Ni18Al5,9 have been analyzed. These alloys have been characterized thermally using Calorimeter Scanning Differential (DSC). DSC data show Tg value for Zr65Cu17,5Ni10Al7,5, Zr68Cu14Ni11Al7, and Zr69,5Cu12Ni11Al7,5 alloy are 379°C, 368°C and 392°C respectively, Tx value for Zr65Cu17,5Ni10Al7,5 is 428°C, 416 °C for Zr68Cu14Ni11Al7 and 431°C for Zr69,5Cu12Ni11Al7,5.Based on these data, alloys were heated at 390°C, 400°C and 410°C (temperature betwen Tg and Tx) during 1 hour. The phases of heated alloys were identified by X-ray diffraction. Phase identification was observed by matching method using formed phase table of JCPDF. While the crystal size is determined by Scherrer's equation. Identification result shows ZrO2 phase with tetragonal and monoclinic structure and intermetallic phase Ni7Zr2, Cu10Zr7, Zr2Ni, and Ni10Zr7 have been formed. The crystal size of oxide and intermetallic phases are in the range at 5 to 51 nm and 10-17 nm, respectively. Corrosion test is done using HNO3 1 M solution for 5, 10 and 15 rninute. It's known that the highest Zr composition has the best corrosion resistant.

Item Type: Article
Uncontrolled Keywords: Corrosion, Metallic Glass, Nanocrystal
Subjects: Q Science > QC Physics > QC173.4.C63 Composite materials
T Technology > TA Engineering (General). Civil engineering (General) > TA418.75 Corrosion-resistant materials
Divisions: Faculty of Mathematics and Science > Physics
Depositing User: Mr. Tondo Indra Nyata
Date Deposited: 17 Sep 2019 02:04
Last Modified: 17 Sep 2019 08:29

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