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Development surface modification technologies - A development of new nuclear materials by thin film deposition methods

Abstract

Pitting corrosion of TiN-coted Inconel 600 in hightemperature chloride solution was studied. To improve the pitting resistance of Inconel 600 by depositing TiN thin film, TiN must have the thickness greater than a critical value at which the characteristics of the film itself appear. E{sub np}s of the TiN-coated sample were higher than those of the bare Inconel 600 at all the solution temperature implying that the TiN film improved the pitting resistance. The heavy defects on the surface of the substrate which were incompletely covered by TiN film served as the active sites for the pit nucleation. Fine polishing reduced those defects and improved the pitting resistance of the TiN-coated Inconel 600. The pit densities of the TiN-coated samples were much lower than those of the bare Inconel 600 at low chloride concentrations. However, at high chloride concentrations the TiN film failed to improve the pitting resistance of the Inconel. The TiN film deposited by ion-plating on Stellite was studied. The X-ray analysis shows that the deposited films were only in .delta.-TiN phase and the texture was changed from (111) to (200) with the increase of N{sub 2}/Ar ratio. The impurities in TiN films were carbon and oxygen. The  More>>
Authors:
Lee, Won Jong; Lee, Min Goo; Kim, Hyun Ho; Kim, Yong Il; Kwang, Hee Soo [1] 
  1. Korea Advanced Institute of Scienec and Technology, Taejon (Korea, Republic of)
Publication Date:
Aug 01, 1995
Product Type:
Technical Report
Report Number:
KAERI-CM-086/94
Reference Number:
SCA: 360105; 665200; PA: KR-97:000773; EDB-98:024832; NTS-98:004003; SN: 98001897049
Resource Relation:
Other Information: PBD: Aug 1995
Subject:
36 MATERIALS SCIENCE; 66 PHYSICS; PITTING CORROSION; CORROSION RESISTANCE; CORROSION PROTECTION; SURFACE COATING; TITANIUM NITRIDES; ALLOY-NI76CR15FE8; THIN FILMS; DEPOSITION; ION IMPLANTATION
OSTI ID:
575292
Research Organizations:
Korea Advanced Energy Research Inst., Daeduk-Danji (Korea, Republic of). Korea Nuclear Safety Center
Country of Origin:
Korea, Republic of
Language:
Korean
Other Identifying Numbers:
Other: ON: DE98724946; TRN: KR9700773
Availability:
OSTI as DE98724946
Submitting Site:
KR
Size:
129 p.
Announcement Date:
Mar 25, 1998

Citation Formats

Lee, Won Jong, Lee, Min Goo, Kim, Hyun Ho, Kim, Yong Il, and Kwang, Hee Soo. Development surface modification technologies - A development of new nuclear materials by thin film deposition methods. Korea, Republic of: N. p., 1995. Web.
Lee, Won Jong, Lee, Min Goo, Kim, Hyun Ho, Kim, Yong Il, & Kwang, Hee Soo. Development surface modification technologies - A development of new nuclear materials by thin film deposition methods. Korea, Republic of.
Lee, Won Jong, Lee, Min Goo, Kim, Hyun Ho, Kim, Yong Il, and Kwang, Hee Soo. 1995. "Development surface modification technologies - A development of new nuclear materials by thin film deposition methods." Korea, Republic of.
@misc{etde_575292,
title = {Development surface modification technologies - A development of new nuclear materials by thin film deposition methods}
author = {Lee, Won Jong, Lee, Min Goo, Kim, Hyun Ho, Kim, Yong Il, and Kwang, Hee Soo}
abstractNote = {Pitting corrosion of TiN-coted Inconel 600 in hightemperature chloride solution was studied. To improve the pitting resistance of Inconel 600 by depositing TiN thin film, TiN must have the thickness greater than a critical value at which the characteristics of the film itself appear. E{sub np}s of the TiN-coated sample were higher than those of the bare Inconel 600 at all the solution temperature implying that the TiN film improved the pitting resistance. The heavy defects on the surface of the substrate which were incompletely covered by TiN film served as the active sites for the pit nucleation. Fine polishing reduced those defects and improved the pitting resistance of the TiN-coated Inconel 600. The pit densities of the TiN-coated samples were much lower than those of the bare Inconel 600 at low chloride concentrations. However, at high chloride concentrations the TiN film failed to improve the pitting resistance of the Inconel. The TiN film deposited by ion-plating on Stellite was studied. The X-ray analysis shows that the deposited films were only in .delta.-TiN phase and the texture was changed from (111) to (200) with the increase of N{sub 2}/Ar ratio. The impurities in TiN films were carbon and oxygen. The amounts of these impurities were decreased greatly when the substrate bias, -200 V, was applied compared to no bias. 40 refs., 4 tabs., 20 figs. (author)}
place = {Korea, Republic of}
year = {1995}
month = {Aug}
}