서지주요정보
$L1_2$형 $(Al,Cr)_3Ti$기 이상 금속간화합물의 소성변형 = Plastic behavior of two-phase intermetallic compounds based on $L1_2$ type $(Al,Cr)_3Ti$
서명 / 저자 $L1_2$형 $(Al,Cr)_3Ti$기 이상 금속간화합물의 소성변형 = Plastic behavior of two-phase intermetallic compounds based on $L1_2$ type $(Al,Cr)_3Ti$ / 박정용.
저자명 박정용 ; Park, Jeong-Yong
발행사항 [대전 : 한국과학기술원, 1994].
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소장정보

등록번호

8004693

소장위치/청구기호

학술문화관(문화관) 보존서고

MEM 94009

휴대폰 전송

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초록정보

Effect of second phase on ductility of Al-Ti-Cr alloys was investigated by compression test at R.T. and 77K. The alloy composition was selected within $Ll_2$ single phase and two-phase field which contains each of six second phases by two different amount, few % and about 20%, in the Al-Ti-Cr phase diagram. Button ingots of Al-Ti-Cr alloys were prepared by arc melting to investigate their microstructure and compressive ductility. In general, homogenization of arc melted ingots substantially reduces the amount of second phases but introduces extensive pore. However, no residual pore was observed in higher Cr content alloys. Environmental effect on ductility of Al-Ti-Cr alloys was investigated through compression test conducted at different strain rates($1.2\times10^{-4}s^{-1}$ and $1.2\times10^{-2}s^{-1}$). Two-phase alloys were more affected by environmental embrittlement than $Ll_2$ single phase alloys. Compared to $Ll_2$ single phase, two-phase alloys consisting of 20% second phase showed relatively high yield strength and poor ductility. However, the alloy consisting of 20% $Cr_2Al$ showed good ductility as well as high yield strength.

서지기타정보

서지기타정보
청구기호 {MEM 94009
형태사항 57 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Jeong-Yong Park
지도교수의 한글표기 : 위당문
지도교수의 영문표기 : Dang-Moon Wee
학위논문 학위논문(석사) - 한국과학기술원 : 전자재료공학과,
서지주기 참고문헌 : p. 55-57
주제 Metals --Ductility.
Intermetallic compounds.
Composite materials.
Microstructure.
소성 변형. --과학기술용어시소러스
금속간 화합물. --과학기술용어시소러스
미세 구조. --과학기술용어시소러스
압축 변형. --과학기술용어시소러스
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