430不锈钢热浸镀铝(硅)之铝化层成长研究

陈鹏交

doi:10.61558/2993-074X.1652

电化学 >

2005 , Vol. 11 >Issue 3: 271 - 276

DOI: https://doi.org/10.61558/2993-074X.1652

研究论文

430不锈钢热浸镀铝(硅)之铝化层成长研究

陈鹏交

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台湾科技大学机械工程研究所,台湾科技大学机械工程研究所,台湾科技大学机械工程研究所,东南技术学院机械工程系台北台湾 ,台北台湾 ,台北台湾 ,台北台湾

收稿日期: 2005-08-28

修回日期: 2005-08-28

网络出版日期: 2005-08-28

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The Growth of Aluminide-layer during the Hot-dipping Al-(Si ) Coating onto 430 Stainless Steels

CHEN Peng-chicao~

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(1), WANG Chaur-jeng*~(1), LIN Yu-chang~(1), CHING Hsuan~(2)(1.Department of Mechanical Engineering,Taiwan University of Science and Technology,Taibei,China,2.Department of Mechanical Engineering, Tung Nan Institute of Technology, Taibei,China

Received date: 2005-08-28

Revised date: 2005-08-28

Online published: 2005-08-28

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摘要

使用430不锈钢于680至800℃下作熔融铝硅合金热浸处理,研究热浸温度及热浸时间对铝硅合金化层成长的影响及铝化层之成长动力学.结果表明,430不锈钢在680~800℃经热浸16~289 s后,表面镀层与铝化层之生成厚度随热浸时间及热浸温度而增加,铝化层之成长动力学符合抛物线定律,并因相互扩散而形成FeA l3及Fe2A l5相,金相截面观察显示,680℃热浸处理的合金化层界面平坦,而在800℃下的即趋于不规则.

关键词： 热浸镀铝硅; 热浸镀铝; 430不锈钢; 合金化层.

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陈鹏交 . 430不锈钢热浸镀铝(硅)之铝化层成长研究[J]. 电化学, 2005 , 11(3) : 271 -276 . DOI: 10.61558/2993-074X.1652

Abstract

The 430 stainless steels have been hot dipped in the molten Al-6.5%Si melts from 680 to 800℃, respectively. The effects of the hot dipping temperature and time on the thickness of the internal alloy layer have been investigated. The activation energy of the growth kinetic of aluminized layer was also calculated. The results showed that the thickness of aluminized layer increased with increasing dipping time and temperature. Besides, the growth kinetic of aluminized layer obeys parabolic rate law. The FeAl_(3 )and Fe_(2)Al_(5 )were formed by the inward diffusion, and the interface of intermetallic layer will be rugged and rough at the 800℃ more than 680℃.

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