High-temperature oxidation behavior of Nb67-xW15Si18Hfx（X=0.5 and 10） alloys

The oxidation behaviors of Nb67-xW15Si18Hfx （x=0, 5, 10） alloys were studied at 1 250 ℃ in air. It is found that the Nb67W15Si18 alloy has the best oxidation resistance among the three alloys; and Hf addition is harmful to the oxidation resistance of the Nb67W15Si18 alloy. The oxides formed on the N...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Transactions of Nonferrous Metals Society of China 2006, Vol.16 (A03), p.2009-2012
1. Verfasser:	姜荣丽刘东明沙江波马岳
Format:	Artikel
Sprache:	eng
Schlagworte:	抗氧化性熔炼温度镍合金高温氧化
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The oxidation behaviors of Nb67-xW15Si18Hfx （x=0, 5, 10） alloys were studied at 1 250 ℃ in air. It is found that the Nb67W15Si18 alloy has the best oxidation resistance among the three alloys; and Hf addition is harmful to the oxidation resistance of the Nb67W15Si18 alloy. The oxides formed on the Nb67W15Si18 alloy are mainly Nb12WO33 and NbO2, and that on the Nb62W15Si18Hf5 and Nb57W15Si18Hflo alloys is Nb2O5. Effect of Hfon the oxidation behavior of the Nb67-xW15Si18Hfx alloys has been discussed based on mierostructures and kinetics of oxidation.
ISSN:	1003-6326