Sökning: onr:"swepub:oai:DiVA.org:kth-279366" >
Unveiling segregati...
Unveiling segregation-induced evolution in phase constitution of Cu-containing high-entropy alloys
-
- Yu, Qiang (författare)
- Xiamen Univ, Sch Aerosp Engn, Xiamen 361005, Peoples R China.
-
- Xu, Wei-Wei (författare)
- Xiamen Univ, Sch Aerosp Engn, Xiamen 361005, Peoples R China.
-
- Cui, Can (författare)
- Xiamen Univ, Sch Aerosp Engn, Xiamen 361005, Peoples R China.
-
visa fler...
-
- Gong, Xiaoguo (författare)
- Xiamen Univ, Sch Aerosp Engn, Xiamen 361005, Peoples R China.
-
- Li, Wei (författare)
- KTH,Egenskaper
-
- Chen, Lijie (författare)
- Xiamen Univ, Sch Aerosp Engn, Xiamen 361005, Peoples R China.
-
- Li, Xiaoqing (författare)
- KTH,Egenskaper
-
- Vitos, Levente (författare)
- KTH,Egenskaper
-
visa färre...
-
Xiamen Univ, Sch Aerosp Engn, Xiamen 361005, Peoples R China Egenskaper (creator_code:org_t)
- Elsevier BV, 2020
- 2020
- Engelska.
-
Ingår i: Journal of Alloys and Compounds. - : Elsevier BV. - 0925-8388 .- 1873-4669. ; 843
- Relaterad länk:
-
https://urn.kb.se/re...
-
visa fler...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- A theoretical investigation of Cu segregation effect on phase constitution, magnetic, and mechanical properties of FeCoNi(CumAl)(x) high-entropy alloys is presented. Results show that the homogenous FeCoNi(Cu1.0Al)(x) only exists as a single face-centered cubic phase at arbitrary temperatures. The level of Cu-segregation determines the phase evolution amongst inhomogeneous single phase (0.75 <= m < 1.0), duplex phase (m << 0.75), and triple phase (m approximate to 0.75). Our results reproduce the observation. Only face-centered cubic phase can be formed for FeCoNi(CumAl)(x) with either rather low or extreme high content of (CumAl) even though the segregation occurred. The Cu addition lifts the total magnetic moments by enhancing the local magnetic moment of Fe, Co and Ni. The serious Cu segregation in the duplex-phase HEAs induces the decrease of ductility of fcc and bcc phases. The increasing Cu enhances the strength of Cu-rich fcc phase and the decreasing Cu weakens that of Cu-poor bcc phase.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Nyckelord
- High-entropy alloys
- Cu segregation effect
- Phase constitution
- First-principles calculations
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas