본문 바로가기
HOME> 논문 > 논문 검색상세

논문 상세정보

Materials & Design v.117, 2017년, pp.193 - 202   SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

CoCrFeNi(W1−xMox) high-entropy alloy coatings with excellent mechanical properties and corrosion resistance prepared by mechanical alloying and hot pressing sintering

Shang, Caiyun (School of Materials Science and Engineering, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan 250022, PR China ); Axinte, Eugen (Faculty of Machine Manufacturing & Industrial Management, Gheorghe Asachi Technical University of Iasi, Romania ); Sun, Jun (School of Materials Science and Engineering, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan 250022, PR China ); Li, Xuting (School of Materials Science and Engineering, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan 250022, PR China ); Li, Peng (School of Materials Science and Engineering, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan 250022, PR China ); Du, Jianwei (School of Materials Science and Engineering, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan 250022, PR China ); Qiao, Pengchao (School of Materials Science and Engineering, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan 250022, PR China ); Wang, Yan (School of Materials Science and Engineering, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan 250022, P );
  • 초록  

    Abstract The CoCrFeNiW and CoCrFeNiW 0.5 Mo 0.5 high-entropy alloy coatings (HEACs) have been prepared by mechanical alloying and vacuum hot pressing sintering (VHPS) technique on Q235 steel substrate. The microstructures, microhardness, wear resistance and corrosion resistance of HEACs were studied in detail. The final milling products for as-milled CoCrFeNi(W 1−x Mo x ) (x=0, 0.5) coating powders are the mixture of body-centered cubic (BCC) and face-centered cubic (FCC) solid solution phases, while order FCC phase exists for CoCrFeNiW. VHPS-ed CoCrFeNiW and CoCrFeNiW 0.5 Mo 0.5 HEACs are 600 and 650μm in thickness respectively, and bear a good metallurgical bonding to the substrate. Both HEACs comprise two FCC phases with a small amount of δ-NiW and σ-CoCr phases. The average microhardness values of CoCrFeNiW and CoCrFeNiW 0.5 Mo 0.5 HEACs reach 669 and 600HV respectively, which far exceed the substrate (160HV). And both coatings exhibit superior wear resistance than substrate under the same wear conditions. The corrosion resistance in 3.5% NaCl solution of the coatings is improved compared with substrate. Especially, Mo addition remarkably enhances corrosion resistance as reflected by the lowest corrosion current density and more positive corrosion potential as well as a reduction in average corrosion rate. Highlights Mechanically alloyed CoCrFeNi(W 1−x Mo x ) coating powders are mixture of BCC/FCC phases. High-quality HEA coatings (HEACs) were fabricated on Q235 via hot pressing sintering. HEACs exhibit good metallurgical bonding to Q235 and uniformly distributed grains. CoCrFeNiW HEAC has the better HV and wear resistance compared to Mo addition. Corrosion resistance in 3.5% NaCl for HEACs is greatly improved than Q235. Graphical abstract [DISPLAY OMISSION]


  • 주제어

    High entropy alloy coating .   Mechanical alloying .   Vacuum hot pressing sintering .   Wear resistance .   Corrosion resistance.  

 활용도 분석

  • 상세보기

    amChart 영역
  • 원문보기

    amChart 영역

원문보기

무료다운로드
  • 원문이 없습니다.

유료 다운로드의 경우 해당 사이트의 정책에 따라 신규 회원가입, 로그인, 유료 구매 등이 필요할 수 있습니다. 해당 사이트에서 발생하는 귀하의 모든 정보활동은 NDSL의 서비스 정책과 무관합니다.

원문복사신청을 하시면, 일부 해외 인쇄학술지의 경우 외국학술지지원센터(FRIC)에서
무료 원문복사 서비스를 제공합니다.

NDSL에서는 해당 원문을 복사서비스하고 있습니다. 위의 원문복사신청 또는 장바구니 담기를 통하여 원문복사서비스 이용이 가능합니다.

이 논문과 함께 출판된 논문 + 더보기