메뉴 건너뛰기
.. 내서재 .. 알림
소속 기관/학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
로그인 회원가입 고객센터 ENG
주제분류

추천
검색

논문 기본 정보

자료유형
학술저널
저자정보
Pankaj Kumar (IIT Indore) Neelesh Kumar Jain (IIT Indore) Sharad Gupta (IIT Indore)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.30 No.3
발행연도
2024.3
수록면
646 - 666 (21page)
DOI
10.1007/s12540-023-01540-5

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색

초록· 키워드

오류제보하기
This paper reports on microstructure evolution, phase formation, microhardness, compressive stress–strain relationship,fractography, and sliding wear characteristics of multi-layer depositions of equiatomic Ti–Nb–Zr–Mo–Ta high entropyalloy (TNZMT HEA) by μ-plasma metal additive manufacturing (μ-PMAM) process. Microstructure evolution revealedthat multi-layer deposition of TNZMT HEA comprises of major body centred cubic (BCC) phase having fine-dendriticstructure and minor BCC phase having inter-dendritic structure. These phases are formed due to minor elemental segregation,higher cooling rates, and decomposition of single BCC phase. Microhardness of μ-PMAM deposited TNZMT HEAis 520 ± 10 HV which is much higher than the vacuum arc-melted TNZMT HEA. It is due to absence of dislocations andgrain boundaries. Its Young’s modulus, ultimate compressive strength, compressive yield strength, and compressive strainare found as 130 ± 4 GPa; 1892 ± 15.6 MPa; 1847 ± 25.8 MPa; and 13.53 ± 1.59% respectively. Minor decrease in stress isobserved after yielding which may be due to dislocation unlocking by solute atoms or the ending of short-range order bydislocation motion. Its average coefficient of sliding friction, average worn-scar depth, and formation of macro-groove anddelamination increases but specific wear rate decreases with the increase in applied load. Smaller values of applied loadresulted in lesser wear debris which is confirmed by EDS analysis of the worn-surfaces. This study confirms that μ-PMAMdeposited TNZMT HEA is a better knee implant material due to its better microstructure, smaller value of Young’s modulus,larger compressive yield strength, higher microhardness, and improved sliding wear resistance.

목차

등록된 정보가 없습니다.

참고문헌 (0)

참고문헌 신청

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!

최근 본 자료

전체보기

댓글(0)

0