Effects of Homogenizing Annealing Treatment on Microstructure and Performance of High Silicon 1235Aluminum Alloy

Wu Yuanli; Fu Gaosheng; Zhuang Yuexiu

doi:10.15980/j.tzzz.2018.01.030

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Effects of Homogenizing Annealing Treatment on Microstructure and Performance of High Silicon 1235Aluminum Alloy
Vol. 38, Issue 1, Pages: 114-116(2018)
Published： 2018 ，
DOI： 10.15980/j.tzzz.2018.01.030

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[1]吴圆丽,傅高升,庄越秀.退火工艺对高硅1235铝箔坯料组织和性能的影响[J].特种铸造及有色合金,2018,38(01):114-116.

Wu Yuanli, Fu Gaosheng, Zhuang Yuexiu. Effects of Homogenizing Annealing Treatment on Microstructure and Performance of High Silicon 1235Aluminum Alloy. [J]. Special Casting & Nonferrous Alloys 38(1):114-116(2018)
[1]吴圆丽,傅高升,庄越秀.退火工艺对高硅1235铝箔坯料组织和性能的影响[J].特种铸造及有色合金,2018,38(01):114-116. DOI： 10.15980/j.tzzz.2018.01.030.

Wu Yuanli, Fu Gaosheng, Zhuang Yuexiu. Effects of Homogenizing Annealing Treatment on Microstructure and Performance of High Silicon 1235Aluminum Alloy. [J]. Special Casting & Nonferrous Alloys 38(1):114-116(2018) DOI： 10.15980/j.tzzz.2018.01.030.

摘要

高硅1235铝箔（Si含量为0.13%

.14%）坯料由于Si含量增加

铸轧坯料中能形成较多有利的第二相αc-AlFeSi和βР-AlFeSi相

但同时使得其抗拉强度提高

不利后续加工。通过对第二相和性能分析

最佳的高硅1235铝箔坯料退火工艺为:530℃×4h

空冷。在该工艺条件下铸轧态的αc-AlFeSi得以保留

但尺寸有所增大

形貌转为以短棒状、颗粒状为主;同时

高硅1235铝箔坯料的抗拉强度比低Si铝箔坯料降低了6.05%;成品高硅1235铝箔的抗拉强度比低Si铝箔提高了7.55%

伸长率提高了84.15%。

Abstract

The contents of favorable phases likeαc-AlFeSi andβР-AlFeSi are increased by increasing the element Si content in 1235 aluminum alloy

and tensile strength of the alloy is improved simultaneously.By analysis of the second phases and properties

the optimal annealing process of high silicon 1235 aluminum（Si content by 13%

4%）is 530℃×4 hwith natural cooling.Theαc-AlFeSi phase in 1235 aluminum alloy is optimized with slight increase of size and short-rod structure.The tensile strength is declined by 6.05% compared to that of low silicon content.Compared to the end product of low silicon1235 aluminum

the tensile strength and elongation of that with high silicon are improved by 7.55%and84.15%

respectively.