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

Authors

Peng-chicao CHEN, 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;

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℃.

Keywords

Hot-dip aluminum-silicon, Hot-dip pure aluminum, 430 stainless steel, Aluminide layer.

DOI Link

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

Publication Date

2005-08-28

Online Available Date

2005-08-28

Revised Date

2005-08-28

Received Date

2005-08-28

Recommended Citation

Peng-chicao CHEN. The Growth of Aluminide-layer during the Hot-dipping Al-(Si ) Coating onto 430 Stainless Steels[J]. Journal of Electrochemistry, 2005 , 11(3): 271-276.
DOI: 10.61558/2993-074X.1652
Available at: https://jelectrochem.xmu.edu.cn/journal/vol11/iss3/6

References

[1]Ch inese Standards CNS 9998,Hot-d ip A lum inum CoatedSted Steets and Strips[S].1983.
[2]Capuano G A,Dang A,Bernabai U,et al.H igh-tem-perature oxidation and therm al cyc ling of alum inum-ete-co-p lated stain less steels[J].Oxidation of M etals,1993,39:263~276.
[3]Hong Sun-li(洪舜立).The study of hot d ipp ing com-m erc ial pure alum inum onto low carbon steel[D].Tai-be i:Taiwan Institute of Technoloty,1985.
[4]Sh igeak iu Kobyash i,Takao Yakou.Control of interm etal-lic compound layes at interface between steel and alum i-num by d iffusion-treatm ent[J].M aterials Sc ience andEngineering,2002,A338:44~53.
[5]Eggler G,VogelH,Kaesche H.Target preparation fortransm ission electron m icro identification ofA l3Fe phasein hot-d ip alum in ized low-alloy steel[J].ParketM etal-logr,1985,22:162~173.
[6]Bahadur A,Mohanty O N.Structureal stud ies of hot d ipalum in ized coatings on m ild steel[J].M aterials Trans-actions,JIM.,1991,32:1053~1061.
[7]R ichards R W,Jones R D,C lem ents P D,et al.M etal-lurgy of continuous hot d ip alum in izing[J].Internation-alM aterials Reviews,1994,39:191~198.
[8]Tortoric i P C,Dayananda M A.Phase form ation and in-terd iffusion in A l-c lad 430 stain less steels[J].M aterialsSc ience&Engineering,1998,A244:207~215.
[9]An J,L iu Y B,Zhang M Z,et al.E ffect of S i on theinterfac ial bond ing strength ofA l-Pd alloy strips and hot-d ip alum in ized steel sheet by hot rolling[J].Journal ofM aterials Processing Technology,2002,120:30~36.