Microstructure and mechanical behavior of Al9Si0.8Fe alloy with different Mn contents

被引：19

作者：

Baldan, Renato ^{[1
]}

Malavazi, Jefferson ^{[2
]}

Couto, Antonio Augusto ^{[3
]}

机构：

[1] UNESP Univ Estadual Paulista, Campus Expt Itapeva, Rua Geraldo Alckmin 519, BR-18409010 Itapeva, SP, Brazil

[2] Escola SENAI Nadir Dias de Figueiredo, Sao Paulo, Brazil

[3] IPEN, Cidade Univ, Sao Paulo, Brazil

来源：

MATERIALS SCIENCE AND TECHNOLOGY | 2017年 / 33卷 / 10期

关键词：

Aluminium alloys; intermetallic; iron; manganese; Al9Si0.8Fe; INTERMETALLIC COMPOUNDS; POROSITY FORMATION; COOLING RATE; AS-CAST; IRON; PHASES; ALFESI; PARAMETERS; MORPHOLOGY; MANGANESE;

D O I：

10.1080/02670836.2016.1271966

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

It has been reported that the detrimental effect of Fe on the mechanical properties of Al alloys can be eliminated through the addition of Mn. In this study, we examine the effects of the addition of different Mn contents (0.1, 0.2, 0.4 and 0.7wt-% of Mn) on the microstructure and mechanical behaviour of Al9Si0.8Fe alloy. It is shown that the presence of up to 0.4wt-% of Mn changed the platelike morphology of beta-Al5FeSi into alpha-Al-15(Fe,Mn)(3)Si-2 with a Chinese script-like morphology. Mn contents higher than 0.4wt-% promoted the formation of alpha-Al-15(Fe,Mn)(3)Si-2 phase with a polygonal morphology. The effect of the addition of up to 0.7wt-% of Mn on the mechanical properties of Al9Si0.8Fe alloys is in fact quite negligible.

引用

页码：1192 / 1199

页数：8

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