Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Mengdi Zhang"'
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
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:
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
Publikováno v:
Materials Science and Engineering: A. 731:124-130
In this study, the microstructure and mechanical properties of CoFeNiMnTixAl1-x (where the molar ratio (x) is 0, 0.1, 0.3, 0.5, 0.8, and 1) high entropy alloys (HEAs) were investigated. The body-centered cubic (BCC) phase, face-centered cubic (FCC) p
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
Publikováno v:
Materials Science and Engineering: A. 725:98-107
The nanostructured bainitic (NB) bearing steel exhibits excellent rolling contact fatigue (RCF) resistance, which is critical to the service of bearing. However, the detailed microstructural evolution of the steel during the RCF process is still uncl
Autor:
Pengfei Yu, G. Li, Lijie Zhang, Z. Zhou, Mengdi Zhang, R.P. Liu, D.J. Liu, Peter K. Liaw, Mingzhen Ma
Publikováno v:
Materials Science and Engineering: A. 707:708-716
A new series of Gd x CoCrCuFeNi (x = 0, 0.05, 0.1, 0.2, and 0.3) high entropy alloys were synthesized to investigate alloying effects of the rare-earth element, Gd, on the microstructure and mechanical behaviors. Microstructures of these alloys were