Oxidation Behavior of Zr-based Amorphous Alloys at 400˚- 450˚C in Air

Jurnal Pena Sains Pub Date : 2019-04-30 DOI:10.21107/JPS.V6I1.5232

T. Triwikantoro, R. Pribadi, F. Munawaroh

{"title":"Oxidation Behavior of Zr-based Amorphous Alloys at 400˚- 450˚C in Air","authors":"T. Triwikantoro, R. Pribadi, F. Munawaroh","doi":"10.21107/JPS.V6I1.5232","DOIUrl":null,"url":null,"abstract":"The study of oxidation behavior of amorphous alloys based on Zirconium with 2 variations in composition was carried out: Zr64.5Cu17Ni11Al7.5 and Zr69.5Cu12Ni11Al7.5 at temperatures of 400 - 450˚C in air. Amorphous Zr-based alloys were thermally characterized using Differential Scanning Calorimeter (DSC) to determine the crystallization temperature and glass transition temperature. The oxidation characterization was carried out using a Thermo gravimetric Analyzer (TGA) at temperatures of 400, 425, and 450˚C for 4 hours in air. The phase analysis of the oxidation product was identified using X-Ray Diffaction (XRD). Based on DSC data the crystallization temperature for Zr64.5Cu17Ni11Al7.5 and Zr69.5Cu12Ni11Al7.5 is 426 and 442˚C respectively. The oxidation kinetics of the two alloys follow parabolic law and the oxidation rate increases with the addition of temperature. Oxides formed during isothermal oxidation in the Zr64.5Cu17Ni11Al7.5 and Zr69.5Cu12Ni11Al7.5 alloys are t-ZrO2 (tetragonal) as the dominant phase and ZrO2 (monoclinic) and CuO as the minor phase. The intermetallic phase is also formed in both samples, t-Zr2Ni and Zr2Cu.","PeriodicalId":31927,"journal":{"name":"Jurnal Pena Sains","volume":" ","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2019-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Jurnal Pena Sains","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.21107/JPS.V6I1.5232","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

The study of oxidation behavior of amorphous alloys based on Zirconium with 2 variations in composition was carried out: Zr_64.5Cu₁₇Ni₁₁Al_7.5and Zr_69.5Cu₁₂Ni₁₁Al_7.5at temperatures of 400 - 450˚C in air. Amorphous Zr-based alloys were thermally characterized using Differential Scanning Calorimeter (DSC) to determine the crystallization temperature and glass transition temperature. The oxidation characterization was carried out using a Thermo gravimetric Analyzer (TGA) at temperatures of 400, 425, and 450˚C for 4 hours in air. The phase analysis of the oxidation product was identified using X-Ray Diffaction (XRD). Based on DSC data the crystallization temperature for Zr_64.5Cu₁₇Ni₁₁Al_7.5 and Zr_69.5Cu₁₂Ni₁₁Al_7.5is 426 and 442˚C respectively. The oxidation kinetics of the two alloys follow parabolic law and the oxidation rate increases with the addition of temperature. Oxides formed during isothermal oxidation in the Zr_64.5Cu₁₇Ni₁₁Al_7.5and Zr_69.5Cu₁₂Ni₁₁Al_7.5 alloys are t-ZrO₂ (tetragonal) as the dominant phase and ZrO₂ (monoclinic) and CuO as the minor phase. The intermetallic phase is also formed in both samples, t-Zr₂Ni and Zr₂Cu.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

zr基非晶合金在400℃~ 450℃空气中的氧化行为

研究了Zr64.5Cu17Ni11Al7.5和Zr69.5Cu12Ni11Al7.5两种成分变化的锆基非晶合金在空气中400-450˚C的氧化行为。使用差示扫描量热仪（DSC）对非晶态Zr基合金进行了热表征，以确定结晶温度和玻璃化转变温度。使用热重分析仪（TGA）在400、425和450˚C的温度下在空气中进行氧化表征4小时。使用X射线衍射（XRD）鉴定氧化产物的相分析。基于DSC数据，Zr64.5Cu17Ni11Al7.5和Zr69.5Cu12Ni11Al7.5的结晶温度分别为426和442˚C。两种合金的氧化动力学遵循抛物线规律，氧化速率随温度的增加而增加。Zr64.5Cu17Ni11Al7.5和Zr69.5Cu12Ni11Al7.5合金在等温氧化过程中形成的氧化物是t-ZrO2（四方）作为主相，ZrO2（单斜）和CuO作为次相。在t-Zr2Ni和Zr2Cu这两个样品中也形成了金属间相。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Jurnal Pena Sains

自引率

0.00%

发文量

审稿时长

12 weeks