Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Mengdi ZHANG"'
Publikováno v:
Carbon. 174:693-709
The preparation of high-efficiency, stable, and low-cost graphene coating on the stainless steel substrate was highly anticipated but remained a challenge. Here, the graphene-CrC nanocomposite coatings were prepared on the 304 stainless steel ball (S
Autor:
G. Li, Yimo Ma, Kai Guo, Jiantao Fan, Lijie Zhang, Peng Cui, Pengfei Yu, Hu Tang, Mengdi Zhang
Publikováno v:
Materials Science and Engineering: A. 757:160-171
A series of novel Co-free AlxCrFeMnNi (x = 0.5–0.8) high-entropy alloys (HEAs) with trimodal distributions of coherent B2 precipitates was fabricated. A fundamental investigation on the microstructural evolution and mechanical properties of these t
Publikováno v:
Materials Science and Engineering: A. 752:63-74
The (CoCrFeNi)6-x-yCrxAly (x = 0.5, y = 0; x = 1, y = 0; and x = 1, y = 1) high-entropy alloys were prepared, and the microstructure and mechanical behaviors were investigated. The crystal structure changed from a sole face-centered-cubic (FCC) struc
Publikováno v:
Scripta Materialia. 159:18-23
In the present study, a novel dendrite-composite high-entropy alloy consisting of nano-structured interdendritic regions and coarse dendrites was successfully designed and prepared by arc-melting. Interestingly, the as-cast Al18Fe33.3Co23Ni23C2.7 (at
Autor:
Pengfei Yu, G. Li, Yimo Ma, Mengdi Zhang, Lijun Zhang, Peng Cui, Riping Liu, Jiantao Fan, Wanqing Dong
Publikováno v:
Materials Science and Engineering: A. 737:198-204
In this study, the microstructures and mechanical properties of CoFeMnNiTix (where the molar ratio (x) is 0, 0.25, 0.5, and 0.75) high entropy alloys were examined. Both the CoFeMnNi and CoFeMnNiTi0.25 alloys exhibit a simple face-centered cubic (FCC
Publikováno v:
Journal of Alloys and Compounds. 769:27-36
The surface modification of the equiatomic CoCrFeNi high-entropy alloy has been studied via solid carburization at 920 °C for 10 h. Microstructure, hardness and wear resistance were investigated by X-ray diffraction (XRD), scanning electron microsco
Publikováno v:
Materials Science and Engineering: A. 733:299-306
The single-phase face-centered-cubic Al7Co24Cr21Fe24Ni24 (in atomic percent, at%) high entropy alloy lacks sufficient hardness and strength at room temperature, which restricts its structural application in the future. To strengthen this material, th
Autor:
R.P. Liu, Jing Qin, Peng Cui, Guoliang Li, Ze-an Zhou, Jiantao Fan, Pengfei Yu, Long Zhang, D.J. Liu, Mingzhen Ma, Mengdi Zhang
Publikováno v:
Materials Science and Engineering: A. 728:30-39
A new set of AlFeCoNiCx (x = 0, 0.02, 0.04, 0.08, 0.17) high-entropy alloys (HEAs) were designed and fabricated. The microstructure, phase evolution and mechanical behaviors of the alloys were systematically investigated. Results show that the matrix
Publikováno v:
Journal of Materials Research. 33:3276-3286
A hypoeutectic CoCrFeNiNbχ system was synthesized to investigate the effect of Nb content on the thermal stability, mechanical properties, and corrosion behaviors. The hypoeutectic CoCrFeNiNbχ alloy, which contained the Laves phase, possessed two-p
Autor:
Ze-an Zhou, Peter K. Liaw, Mingzhen Ma, Guoliang Li, R.P. Liu, Mengdi Zhang, Jing Qin, Long Zhang, Jiantao Fan, Pengfei Yu, Peng Cui
Publikováno v:
Materials Science and Engineering: A. 725:437-446
The effects of rare-earth element, Y, additions on the microstructures and mechanical properties of CoCrFeNi alloy have been investigated. The new series of CoCrFeNiYx (x = 0, 0.05, 0.1, 0.2, and 0.3) high entropy alloys were synthesized by vacuum ar