Characterization of ferritic ductile iron subjected to successive aluminizing and austempering

Yakup Yürektürk; Murat Baydoğan

doi:10.1016/j.surfcoat.2018.04.083

Characterization of ferritic ductile iron subjected to successive aluminizing and austempering

Yakup Yürektürk
, Murat Baydoğan^*

^*Bu çalışma için yazışmadan sorumlu yazar

Metalurji ve Malzeme Müh.Böl.

Istanbul Technical University

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

17 Atıf (Scopus)

Özet

In this study, GJS-500-14 solution-strengthened ferritic ductile iron was subjected to successive hot-dip aluminizing (HDA) and austempering. The combination of these processes resulted in the formation of a thin Al₂O₃ layer on the iron surface, an intermetallic layer beneath the surface, and an ausferritic microstructure in the interior. Scanning electron microscopy-energy dispersive X-ray spectrometry and X-ray diffraction analyses allowed the qualitative identification of the intermetallics formed due to the aluminizing and their transformation after austempering. Corrosion properties of the final product were also evaluated by potentiodynamic polarization and salt spray corrosion tests, and the surfaces and subsurfaces of the coating layer were examined. The results revealed that this combined process improved the corrosion resistance of ductile iron and enhanced its mechanical properties.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	142-149
Sayfa sayısı	8
Dergi	Surface and Coatings Technology
Hacim	347
DOI'lar	https://doi.org/10.1016/j.surfcoat.2018.04.083
Yayın durumu	Yayınlandı - 15 Ağu 2018

Bibliyografik not

Publisher Copyright:
© 2018 Elsevier B.V.

Finansman

This work was supported by Istanbul Technical University as a part of ITU Scientific Research Project with Grant No. 41008 . The authors greatly acknowledge Dr. Yavuz Sun and Dr. Hayrettin Ahlatci of Karabuk University for his valuable support during potentiodynamic polarization tests, and MSc. Mert Gunyuz for his help during salt spray corrosion tests.

Finansörler	Finansör numarası
International Technological University
Istanbul Teknik Üniversitesi	41008

Belgeye Erişim

10.1016/j.surfcoat.2018.04.083

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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title = "Characterization of ferritic ductile iron subjected to successive aluminizing and austempering",

abstract = "In this study, GJS-500-14 solution-strengthened ferritic ductile iron was subjected to successive hot-dip aluminizing (HDA) and austempering. The combination of these processes resulted in the formation of a thin Al2O3 layer on the iron surface, an intermetallic layer beneath the surface, and an ausferritic microstructure in the interior. Scanning electron microscopy-energy dispersive X-ray spectrometry and X-ray diffraction analyses allowed the qualitative identification of the intermetallics formed due to the aluminizing and their transformation after austempering. Corrosion properties of the final product were also evaluated by potentiodynamic polarization and salt spray corrosion tests, and the surfaces and subsurfaces of the coating layer were examined. The results revealed that this combined process improved the corrosion resistance of ductile iron and enhanced its mechanical properties.",

keywords = "Austempering, Corrosion, Ferritic ductile iron, Hot-dip aluminizing, Intermetallic",

author = "Yakup Y{\"u}rekt{\"u}rk and Murat Baydoğan",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = aug,

day = "15",

doi = "10.1016/j.surfcoat.2018.04.083",

language = "English",

volume = "347",

pages = "142--149",

journal = "Surface and Coatings Technology",

issn = "0257-8972",

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TY - JOUR

T1 - Characterization of ferritic ductile iron subjected to successive aluminizing and austempering

AU - Yürektürk, Yakup

AU - Baydoğan, Murat

PY - 2018/8/15

Y1 - 2018/8/15

N2 - In this study, GJS-500-14 solution-strengthened ferritic ductile iron was subjected to successive hot-dip aluminizing (HDA) and austempering. The combination of these processes resulted in the formation of a thin Al2O3 layer on the iron surface, an intermetallic layer beneath the surface, and an ausferritic microstructure in the interior. Scanning electron microscopy-energy dispersive X-ray spectrometry and X-ray diffraction analyses allowed the qualitative identification of the intermetallics formed due to the aluminizing and their transformation after austempering. Corrosion properties of the final product were also evaluated by potentiodynamic polarization and salt spray corrosion tests, and the surfaces and subsurfaces of the coating layer were examined. The results revealed that this combined process improved the corrosion resistance of ductile iron and enhanced its mechanical properties.

AB - In this study, GJS-500-14 solution-strengthened ferritic ductile iron was subjected to successive hot-dip aluminizing (HDA) and austempering. The combination of these processes resulted in the formation of a thin Al2O3 layer on the iron surface, an intermetallic layer beneath the surface, and an ausferritic microstructure in the interior. Scanning electron microscopy-energy dispersive X-ray spectrometry and X-ray diffraction analyses allowed the qualitative identification of the intermetallics formed due to the aluminizing and their transformation after austempering. Corrosion properties of the final product were also evaluated by potentiodynamic polarization and salt spray corrosion tests, and the surfaces and subsurfaces of the coating layer were examined. The results revealed that this combined process improved the corrosion resistance of ductile iron and enhanced its mechanical properties.

KW - Austempering

KW - Corrosion

KW - Ferritic ductile iron

KW - Hot-dip aluminizing

KW - Intermetallic

UR - https://www.scopus.com/pages/publications/85046494453

U2 - 10.1016/j.surfcoat.2018.04.083

DO - 10.1016/j.surfcoat.2018.04.083

M3 - Article

AN - SCOPUS:85046494453

SN - 0257-8972

VL - 347

SP - 142

EP - 149

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

ER -

Characterization of ferritic ductile iron subjected to successive aluminizing and austempering

Özet

Bibliyografik not

Finansman

Belgeye Erişim

Diğer Dosyalar ve Linkler

Parmak izi

Alıntı Yap