Structure of Electrodeposited Zn–Mn Alloy Coatings

• Tsuchiya Yasuo

  Kokan Keisoku K. K.

• Hashimoto Satoshi

  Kokan Keisoku K. K.

• Ishibashi Yoichi

  Kokan Keisoku K. K.

• Urakawa Takayuki

  NKK, Intellectual Property Department

• Sagiyama Masaru

  NKK, Materials and Processing Research Center

• Fukuda Yasuo

  Research Institute of Electronics, Shizuoka University

抄録

Structure of electrodeposited Zn–Mn alloys which are one of the corrosion-resistant zinc alloy coatings suitable for automotive body panels was investigated using X-ray diffraction, SEM and SIMS.<br>The coatings are composed of fine grains or granular grains which contain fine particles, depending on the Mn content. The coatings have an uniform depth distribution of Mn and Zn.<br>X-ray diffraction revealed that the coatings have either single or dual alloy phases which are the following phases, namely η phase, Γ phase, ε phase, γ-Mn phase and α-Mn phase, depending on the Mn content. The ε phase and γ-Mn phase as high temperature phases exist when the range of the Mn content is above 20 mass%. Both phases are stable when heated at 170°C. The γ-Mn phase is transformed to the β-Mnphase and the α-Mn phase by heating beyond 250°C, although the e phase is unchanged.

収録刊行物

• ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ

  ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ 40 (10), 1024-1029, 2000

  一般社団法人 日本鉄鋼協会

キーワード

• Zn–Mn alloy
• alloy coated steel sheet
• electrodeposition
• crystal structure
• phase transformation
• X-ray diffraction
• SEM, SIMS

詳細情報

• CRID: 1390001206488564864
• NII論文ID: 10004837374
• NII書誌ID: AA10680712
• DOI: 10.2355/isijinternational.40.1024
• COI: 1:CAS:528:DC%2BD3cXosVKgsL0%3D
• ISSN: 13475460
• ISSN: 09151559
• Web Site: http://www.jstage.jst.go.jp/article/isijinternational1989/40/10/40_10_1024/_pdf
• 本文言語コード: en
• データソース種別:
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