Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 846, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2022.143309
Keywords
Cu-Fe alloy; Grain refinement; In-situ self-refinement mechanism; Mechanical properties
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Funding
- National Natural Science Foundation of China [U1860202, U1732276, 50134010, 51904184, 52004156]
- Independent Research and Development Project of State Key Laboratory of Advanced Special Steel, Shanghai Key Lab-oratory of Advanced Ferrometallurgy, Shanghai University [15520711000]
- Science and Technology Commission of Shanghai Municipality [19DZ2270200, 20511107700]
- [SKLASS 2021-Z11]
- [13JC14025000]
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The study found that the addition of Zr can refine the grain structure and improve mechanical properties in Cu-Fe alloys. This is because Zr forms ZrFe2 compound as nucleation substrate during solidification and additional precipitation of Cu4Zr and ZrFe2 occurs during aging process.
The effects of Zr addition on the solidification structure and mechanical properties of a Cu-10 wt%Fe alloy were investigated. Grain refinement results from the in-situ synthesis of the ZrFe2 nucleation substrate during solid-ification. The enhanced mechanical properties can be attributed to the additional precipitation of Cu4Zr and ZrFe2 during ageing.
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