Formation of Nano-Microstructured Aluminum Alloy Film Using Thermal Spray Gun with Ultra Rapid Cooling

• Shin Yoshio

  Amorphous Technology Section, Nakayama Amorphous

• Ohmori Yasuhiro

  Surface Treatment Division, Yoshikawa Kogyo

• Morimoto Toshiharu

  Amorphous Technology Section, Nakayama Amorphous

• Kumai Takashi

  Surface Treatment Division, Yoshikawa Kogyo

• Yanagida Akira

  Mechanical Engineering, Tokyo Denki University

Abstract

A new thermal spray gun for nitrogen gas cooling and mist cooling has been developed. Aluminum-magnesium alloy films prepared by nitrogen gas cooling using the thermal spray gun had a partial nano microstructure because residual strains induced by rapid cooling acted as solid nuclei and a small amount of the amorphous phase became crystalline as a result of the heat of the thermal spray. Furthermore, the nano-microstructured aluminum magnesium films exhibited high corrosion resistance. Moreover, aluminum-magnesium alloy films containing a small amount of titanium prepared by mist gas cooling exhibited higher corrosion resistance than those without titanium. We consider that the aluminum -titanium compound acted as solid nuclei during ultra rapid solidification and that a strong passive layer was formed by mist gas cooling.

Journal

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 57 (4), 488-493, 2016

  The Japan Institute of Metals and Materials

Keywords

• thermal spray
• nano-microstructure
• ultra rapid cooling
• aluminum-magnesium alloy
• titanium

Details

• CRID: 1390001204254590976
• NII Article ID: 130005138766
• NII Book ID: AA1151294X
• DOI: 10.2320/matertrans.m2015392
• ISSN: 13475320
• ISSN: 13459678
• NDL BIB ID: 027232613
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I027232613
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/57/4/57_M2015392/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed