WFRF:(Chen Lijie)
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- Yu, QiangXiamen Univ, Sch Aerosp Engn, Xiamen 361005, Peoples R China. (author)
Unveiling segregation-induced evolution in phase constitution of Cu-containing high-entropy alloys
- Article/chapterEnglish2020
Publisher, publication year, extent ...
- Elsevier BV,2020
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:kth-279366
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279366URI
- https://doi.org/10.1016/j.jallcom.2020.156109DOI
Supplementary language notes
- Language:English
- Summary in:English
Part of subdatabase
- SwePubSwePub
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Notes
- QC 20200903
- 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.
Subject headings and genre
- TEKNIK OCH TEKNOLOGIER Materialteknik Metallurgi och metalliska material hsv//swe
- ENGINEERING AND TECHNOLOGY Materials Engineering Metallurgy and Metallic Materials hsv//eng
- High-entropy alloys
- Cu segregation effect
- Phase constitution
- First-principles calculations
Added entries (persons, corporate bodies, meetings, titles ...)
- Xu, Wei-WeiXiamen Univ, Sch Aerosp Engn, Xiamen 361005, Peoples R China. (author)
- Cui, CanXiamen Univ, Sch Aerosp Engn, Xiamen 361005, Peoples R China. (author)
- Gong, XiaoguoXiamen Univ, Sch Aerosp Engn, Xiamen 361005, Peoples R China. (author)
- Li, WeiKTH,Egenskaper(Swepub:kth)u1q7p6e9 (author)
- Chen, LijieXiamen Univ, Sch Aerosp Engn, Xiamen 361005, Peoples R China. (author)
- Li, XiaoqingKTH,Egenskaper(Swepub:kth)u1ycjcd5 (author)
- Vitos, LeventeKTH,Egenskaper(Swepub:kth)u17bp5wm (author)
- Xiamen Univ, Sch Aerosp Engn, Xiamen 361005, Peoples R China.Egenskaper (creator_code:org_t)
Related titles
- In:Journal of Alloys and Compounds: Elsevier BV8430925-83881873-4669
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