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author：

Zhu, Chenglong (Zhu, Chenglong.) [1] | Li, Zhanjiang (Li, Zhanjiang.) [2] | Hong, Chunfu (Hong, Chunfu.) [3] | Dai, Pinqiang (Dai, Pinqiang.) [4] | Chen, Junfeng (Chen, Junfeng.) [5]

Indexed by：

EI

Abstract：

The　equiatomic　refractory　high　entropy　alloy　(HEA)　TiZrNbMoTa　was　investigated.　The　alloyed　powders　with　face-centered　cubic　(FCC)　structured　solid　solution　phase　were　prepared　by　mechanical　alloying　(MA)　and　then　sintered　by　spark　plasma　sintering　(SPS)　at　1300,　1400,　1500,　and　1600　°C.　The　microstructure　and　mechanical　properties　of　the　bulk　alloy　were　investigated.　The　body-centered　cubic　(BCC)　structured　solid　solution　phase　and　the　ZrO2　phase　precipitated　from　the　FCC　structured　solid　solution　phase　during　cool-down　from　sintering.　The　highest　compression　fracture　strength　(3759　MPa)　and　fracture　strain　(12.1%)　were　obtained　in　the　refractory　HEA　sintered　at　1400　°C.　The　grain　boundary　strengthening,　precipitation　strengthening,　solid　solution　strengthening,　transformation-induced　plastic　(TRIP)　effect,　and　toughening　effect　of　the　ZrO2　phase　are　the　important　factors　for　the　high　strength　and　ducitily　of　the　refractory　HEA　prepared　in　this　study.　©　2020　Elsevier　Ltd

Keyword：

Entropy Fracture toughness Grain boundaries High-entropy alloys Mechanical alloying Microstructure Niobium alloys Solid solutions Spark plasma sintering Tantalum alloys Titanium alloys Zirconia

Community：

  • [ 1 ] [Zhu, Chenglong]School of Materials Science and Engineering, Fuzhou University, Fuzhou; 350116, China
  • [ 2 ] [Li, Zhanjiang]College of Materials Science and Engineering, Fujian University of Technology, Fuzhou; 350118, China
  • [ 3 ] [Li, Zhanjiang]Fujian Provincial Key Laboratory of New Material Preparation and Forming Technology, Fuzhou; 350108, China
  • [ 4 ] [Hong, Chunfu]College of Materials Science and Engineering, Fujian University of Technology, Fuzhou; 350118, China
  • [ 5 ] [Hong, Chunfu]Fujian Provincial Key Laboratory of New Material Preparation and Forming Technology, Fuzhou; 350108, China
  • [ 6 ] [Dai, Pinqiang]School of Materials Science and Engineering, Fuzhou University, Fuzhou; 350116, China
  • [ 7 ] [Dai, Pinqiang]College of Materials Science and Engineering, Fujian University of Technology, Fuzhou; 350118, China
  • [ 8 ] [Dai, Pinqiang]Fujian Provincial Key Laboratory of New Material Preparation and Forming Technology, Fuzhou; 350108, China
  • [ 9 ] [Chen, Junfeng]School of Materials Science and Engineering, Fuzhou University, Fuzhou; 350116, China

Reprint 's Address：

  • [dai, pinqiang]school of materials science and engineering, fuzhou university, fuzhou; 350116, china;;[dai, pinqiang]college of materials science and engineering, fujian university of technology, fuzhou; 350118, china;;[dai, pinqiang]fujian provincial key laboratory of new material preparation and forming technology, fuzhou; 350108, china

Email：


pqdai@126.com
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Source ：

International Journal of Refractory Metals and Hard Materials

ISSN： 0263-4368

Year： 2020

Volume： 93

3 . 8 7 1

JCR@2020

4 . 2 0 0

JCR@2023

ESI HC Threshold：196

JCR Journal Grade：1

CAS Journal Grade：2

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 43

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 1

Affiliated Colleges：

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