서지주요정보
수소 1기압, 800℃ 의 두온도하에서 α-철의 수소용해도에 미치는 합금원소의 영향에 대한 연구 = Effect of alloying elements on the solubility of hydrogen in ferritic iron at atmospheric hydrogen pressure and elevated temperatures
서명 / 저자 수소 1기압, 800℃ 의 두온도하에서 α-철의 수소용해도에 미치는 합금원소의 영향에 대한 연구 = Effect of alloying elements on the solubility of hydrogen in ferritic iron at atmospheric hydrogen pressure and elevated temperatures / 이병택.
발행사항 [서울 : 한국과학기술원, 1981].
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소장정보

등록번호

4001277

소장위치/청구기호

학술문화관(문화관) 보존서고

MMS 8117

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리뷰정보

초록정보

Solubility of hydrogen in α-iron and its alloys with Ti, Mn, V, and Ni at atmospheric hydrogen pressure and two temperature of 800 and 700℃ was determined with thermal charging and vacuum extraction analysis. These solubilities show minimum points at low concentration of alloying elements and it is suggested that this phenomenon may be interpreted by the nature of the density of state at Fermi surface of matrix metal. With these solubility data, interation parameter and interaction energy between each alloying elements and hydrogen are calculated applying the concept of Quasi-chemical model. These values are all negative and are more negative in the order of Ti, V, Mn, and Ni. The nature of these interation energies is discussed in terms of the two major parts, i.e. the electronic structure of alloying element and strain induced by the difference between atomic radius of iron and that of alloying element. And the result is that the former contributes dominantly to the solubility of hydrogen in the alloys investigated and the effect of the latter may be ignored at the condition studied in this study. Calculated interation energies between alloying elements and hydrogen in iron are linearly proportional to the electronegativity function F defined by McLellan. Following is the empirical relation between interaction energies (Δε) and F. Δε = -4.5-7.7F at 800℃ Δε = -3.3-6.7 F at 700℃ Using this equation, the effect of some elements unmeasured can be predicted.

서지기타정보

서지기타정보
청구기호 {MMS 8117
형태사항 [iii], 38 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Byung-Teak Lee
지도교수의 한글표기 : 이재영
지도교수의 영문표기 : Jai-Young Lee
학위논문 학위논문(석사) - 한국과학기술원 : 재료공학과,
서지주기 참고문헌 : p. 34-36
주제 Solubility.
Hydrogen.
합금 원소. --과학기술용어시소러스
용해도. --과학기술용어시소러스
알파상. --과학기술용어시소러스
상태 밀도. --과학기술용어시소러스
Alloying elements.
Density of states.
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