서지주요정보
니켈 전착된 우라늄 합금의 부식거동에 관한 연구 = A study on the corrosion behaviour of uranium alloy electroplated with nickel
서명 / 저자 니켈 전착된 우라늄 합금의 부식거동에 관한 연구 = A study on the corrosion behaviour of uranium alloy electroplated with nickel / 이창규.
저자명 이창규 ; Rhee, Chang-Kyu
발행사항 [서울 : 한국과학기술원, 1985].
Online Access 원문보기 원문인쇄

소장정보

등록번호

4103309

소장위치/청구기호

학술문화관(문화관) 보존서고

MMS 8538

SMS전송

도서상태

이용가능

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반납예정일

초록정보

In order to increase the corrosion resistance in a dilute uranium alloy, aftereffects of plating were investigated in two ways; the effect of thickness and porosity in the Ni-film electroplated, and that of process itself, electroplating, in pre-treatment and in post-treatment. Series of corrosion tests were performed in a dilute NaCl solution ($50ppm Cl^-$), in a doubly distilled pure water at 18℃, and in a relative humidity 80% at 70℃. Changes in the weight of specimens were measured periodically after the start of the tests. Thicker the coating layer, less the total corrosion rate. This was attributed to the decrease in porosity. However the local corrosion rate was increased at the pore site in contrast as the coating becomes thicker. Protection was satisfactory only in a heavily etched specimen. It was found that heavy etching in the pre-treatment prevents the increase on the corrosion rate and that it decreases the distance between roots in the surface, which in turn stops the increase of the porosity. Further, corrosion rate was kept constant regardless of the solution heat treatment or of the caustic soaking. The post-treatment to increase the mechanical properties, vacuum degassing, was found to increase the corrosion rate. Ni-coating offered an excellent protection to RH 80% at 70℃ and to distilled water at 18℃.

서지기타정보

서지기타정보
청구기호 {MMS 8538
형태사항 [ii], 76 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 수록
저자명의 영문표기 : Chang-Kyu Rhee
지도교수의 한글표기 : 원동연
지도교수의 영문표기 : Dong-Yun Won
학위논문 학위논문(석사) - 한국과학기술원 : 재료공학과,
서지주기 참고문헌 : p. 70-71
주제 Electroplating.
Etching.
Humidity.
니켈. --과학기술용어시소러스
부식 (금속) --과학기술용어시소러스
에칭. --과학기술용어시소러스
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