Electrodeposition behavior and wear resistance of Co-Ni alloys from sulfamate baths for continuous steel casting mold

Akira Kubota, Yasuhiko Tsubota, Hiroaki Nakano, Satoshi Oue, Shigeo Kobayashi, Tetsuya Akiyama, Hisaaki Fukushima

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Electrodeposition behavior of Co-Ni alloys, which has been applied in the coating of continuous steel casting mold, was studied by measuring the polarization curves using a Cu substrate in sulfamate baths of various compositions at 55 °C under galvanostatic conditions. The wear resistance of electroplated Co-Ni film was also investigated by sliding wear test of ring-on-plate type at 300 °C. The results obtained were as follows: (1) In a wide range of bath composition, Co-Ni alloy deposition shows a feature of anomalous codeposition in which the less noble Co is electrodeposited in preference to Ni. The Ni deposition is greatly polarized when compared to the Co deposition from their single baths. Therefore, Co is deposited in preference to Ni, though Ni deposition from the alloy plating bath is more largely depolarized than that from its single bath. (2) The wear resistance of Co-Ni coating is improved with increasing Co content more than 50% in the deposits. The higher Co content in the deposit is, the thicker oxide film mainly composed of CoO and Co3O4 is formed on the surface of Co-Ni coating, which improves sliding property to prevent adhesive wear between Co-Ni coating and press ring.

Original languageEnglish
Pages (from-to)728-734
Number of pages7
JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume85
Issue number10
DOIs
Publication statusPublished - Jan 1 1999

Fingerprint

Steel castings
wear resistance
Electrodeposition
electrodeposition
Wear resistance
baths
steels
Coatings
coatings
Deposits
Wear of materials
sliding
deposits
Chemical analysis
Plating
Thick films
wear tests
Oxide films
rings
Adhesives

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

Cite this

Electrodeposition behavior and wear resistance of Co-Ni alloys from sulfamate baths for continuous steel casting mold. / Kubota, Akira; Tsubota, Yasuhiko; Nakano, Hiroaki; Oue, Satoshi; Kobayashi, Shigeo; Akiyama, Tetsuya; Fukushima, Hisaaki.

In: Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, Vol. 85, No. 10, 01.01.1999, p. 728-734.

Research output: Contribution to journalArticle

@article{764a7d392139422b90a6935805fe68d1,
title = "Electrodeposition behavior and wear resistance of Co-Ni alloys from sulfamate baths for continuous steel casting mold",
abstract = "Electrodeposition behavior of Co-Ni alloys, which has been applied in the coating of continuous steel casting mold, was studied by measuring the polarization curves using a Cu substrate in sulfamate baths of various compositions at 55 °C under galvanostatic conditions. The wear resistance of electroplated Co-Ni film was also investigated by sliding wear test of ring-on-plate type at 300 °C. The results obtained were as follows: (1) In a wide range of bath composition, Co-Ni alloy deposition shows a feature of anomalous codeposition in which the less noble Co is electrodeposited in preference to Ni. The Ni deposition is greatly polarized when compared to the Co deposition from their single baths. Therefore, Co is deposited in preference to Ni, though Ni deposition from the alloy plating bath is more largely depolarized than that from its single bath. (2) The wear resistance of Co-Ni coating is improved with increasing Co content more than 50{\%} in the deposits. The higher Co content in the deposit is, the thicker oxide film mainly composed of CoO and Co3O4 is formed on the surface of Co-Ni coating, which improves sliding property to prevent adhesive wear between Co-Ni coating and press ring.",
author = "Akira Kubota and Yasuhiko Tsubota and Hiroaki Nakano and Satoshi Oue and Shigeo Kobayashi and Tetsuya Akiyama and Hisaaki Fukushima",
year = "1999",
month = "1",
day = "1",
doi = "10.2355/tetsutohagane1955.85.10_728",
language = "English",
volume = "85",
pages = "728--734",
journal = "Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan",
issn = "0021-1575",
publisher = "一般社団法人 日本鉄鋼協会",
number = "10",

}

TY - JOUR

T1 - Electrodeposition behavior and wear resistance of Co-Ni alloys from sulfamate baths for continuous steel casting mold

AU - Kubota, Akira

AU - Tsubota, Yasuhiko

AU - Nakano, Hiroaki

AU - Oue, Satoshi

AU - Kobayashi, Shigeo

AU - Akiyama, Tetsuya

AU - Fukushima, Hisaaki

PY - 1999/1/1

Y1 - 1999/1/1

N2 - Electrodeposition behavior of Co-Ni alloys, which has been applied in the coating of continuous steel casting mold, was studied by measuring the polarization curves using a Cu substrate in sulfamate baths of various compositions at 55 °C under galvanostatic conditions. The wear resistance of electroplated Co-Ni film was also investigated by sliding wear test of ring-on-plate type at 300 °C. The results obtained were as follows: (1) In a wide range of bath composition, Co-Ni alloy deposition shows a feature of anomalous codeposition in which the less noble Co is electrodeposited in preference to Ni. The Ni deposition is greatly polarized when compared to the Co deposition from their single baths. Therefore, Co is deposited in preference to Ni, though Ni deposition from the alloy plating bath is more largely depolarized than that from its single bath. (2) The wear resistance of Co-Ni coating is improved with increasing Co content more than 50% in the deposits. The higher Co content in the deposit is, the thicker oxide film mainly composed of CoO and Co3O4 is formed on the surface of Co-Ni coating, which improves sliding property to prevent adhesive wear between Co-Ni coating and press ring.

AB - Electrodeposition behavior of Co-Ni alloys, which has been applied in the coating of continuous steel casting mold, was studied by measuring the polarization curves using a Cu substrate in sulfamate baths of various compositions at 55 °C under galvanostatic conditions. The wear resistance of electroplated Co-Ni film was also investigated by sliding wear test of ring-on-plate type at 300 °C. The results obtained were as follows: (1) In a wide range of bath composition, Co-Ni alloy deposition shows a feature of anomalous codeposition in which the less noble Co is electrodeposited in preference to Ni. The Ni deposition is greatly polarized when compared to the Co deposition from their single baths. Therefore, Co is deposited in preference to Ni, though Ni deposition from the alloy plating bath is more largely depolarized than that from its single bath. (2) The wear resistance of Co-Ni coating is improved with increasing Co content more than 50% in the deposits. The higher Co content in the deposit is, the thicker oxide film mainly composed of CoO and Co3O4 is formed on the surface of Co-Ni coating, which improves sliding property to prevent adhesive wear between Co-Ni coating and press ring.

UR - http://www.scopus.com/inward/record.url?scp=0033349474&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033349474&partnerID=8YFLogxK

U2 - 10.2355/tetsutohagane1955.85.10_728

DO - 10.2355/tetsutohagane1955.85.10_728

M3 - Article

AN - SCOPUS:0033349474

VL - 85

SP - 728

EP - 734

JO - Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan

JF - Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan

SN - 0021-1575

IS - 10

ER -