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High temperature oxidation of non-equiatomic AL₅CR₁₂FE₃₅ MN₂₈NI₂₀ high entropy alloy / Mayar Mohammed Mostafa Mohammed Ali ; Supervised Fawzi A.A. Elrefaie , Hafiz A. Ahmed , Mohamed Abdelhady Gepreel

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Mayar Mohammed Mostafa Mohammed Ali , 2019Description: 82 P. : charts , facsimiles ; 30cmOther title:
  • عالية الانتروبى AlCrFeMnNi دراسة سلوك الاكسدة عند درجات الحرارة العالية لسبيكة [Added title page title]
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Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Metallurgical Engineering Summary: Oxidation behavior of non-equiatomic AL₅CR₁₂FE₃₅ MN₂₈NI₂₀ high entropy alloy was investigated at 900-1100{u2103} in air for continuous 100 hours. The oxidation rate followed parabolic law with an activation energy equals to 100.8 kJ/mol. At all temperatures the alloy produced a duplex layer scale consisted of manganese oxides that overlays layer of Mn-Cr-Fe spinel oxides. While at 1000-1100{u2103} the alloys were also oxidized internally consisted of aluminum oxide precipitates deep in the alloy. The samples oxidized at 1000{u2103} for 1 and 24 hours formed scale of Mn3O4 overlaying Mn-Cr-Fe rich spinel oxide
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Item type Current library Home library Call number Copy number Status Date due Barcode
Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.12.M.Sc.2019.Ma.H (Browse shelf(Opens below)) Not for loan 01010110080091000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.12.M.Sc.2019.Ma.H (Browse shelf(Opens below)) 80091.CD Not for loan 01020110080091000

Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Metallurgical Engineering

Oxidation behavior of non-equiatomic AL₅CR₁₂FE₃₅ MN₂₈NI₂₀ high entropy alloy was investigated at 900-1100{u2103} in air for continuous 100 hours. The oxidation rate followed parabolic law with an activation energy equals to 100.8 kJ/mol. At all temperatures the alloy produced a duplex layer scale consisted of manganese oxides that overlays layer of Mn-Cr-Fe spinel oxides. While at 1000-1100{u2103} the alloys were also oxidized internally consisted of aluminum oxide precipitates deep in the alloy. The samples oxidized at 1000{u2103} for 1 and 24 hours formed scale of Mn3O4 overlaying Mn-Cr-Fe rich spinel oxide

Issued also as CD

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