Interfacial reactions between Al7075 alloy and BaAl2Si2O8 + CaAl2Si2O8 mixture

被引：3
|
作者：
Adabifiroozjaei, Esmaeil [1 ]
Koshy, Pramod [1 ]
Rastkerdar, Ebad [2 ]
Ma, Hongyang [1 ]
Sorrell, Charles C. [1 ]
机构：
[1] UNSW Australia, Sch Mat Sci & Engn, Sydney, NSW, Australia
[2] Univ Tabriz, Dept Mat Engn, Fac Mech Engn, Tabriz, Iran
来源：
PHILOSOPHICAL MAGAZINE | 2016年 / 96卷 / 36期
关键词：
Aluminium alloys; corrosion; diffusion; interfacial; phase transformations; HIGH-ALUMINA REFRACTORIES; LOW-CEMENT CASTABLES; AL-MG ALLOYS; DIRECTED OXIDATION; CELSIAN TRANSFORMATION; CORROSION-RESISTANCE; FULL CRYSTALLIZATION; AL2O3/AL COMPOSITES; CRYSTAL STRUCTURE; KINETICS;
D O I：
10.1080/14786435.2016.1237784
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The present work reports the SEM, EPMA and TEM examination of reactions at the interface of Al7075 alloy and a 50/50 wt% mixture of BaAl2Si2O8 + CaAl2Si2O8 feldspars at 850 degrees C, 1150 degrees C and 1250 degrees C. Sintering of the feldspar mixture at 1450 degrees C caused dissolution of similar to 1.0 wt% Ca in BaAl2Si2O8 and 0.5 wt% Ba in CaAl2Si2O8. The interaction of the Al alloy with the sintered feldspars shifted the alloy composition to the Al-Si-alpha BaAl2Si2 and Al-Si-beta aAl(2)Si(2) compatibility triangles. The feldspars underwent a series of phase transformations, leading ultimately to the formation of Al2O3.
引用
收藏
页码：3711 / 3734
页数：24
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