In:
Materials Science Forum, Trans Tech Publications, Ltd., Vol. 913 ( 2018-2), p. 862-869
Abstract:
The effects of rare earth Y addition on microstructure and properties of pure copper were investigated. Mechanical test, electrical test, oxidation resistance test, metalloscope, scanning electronic microscope (SEM) and X-ray difffraction (XRD) were performed to study the properties, microstructure and constitution. The results showed that both the hardness and antioxidant properties obviously increased with the increase of Y, confirmed the successful refinement role of Y. A small amount of Y (less than 0.5 wt.%) could improve the electrical conductivity of pure copper. When the Y content reached 0.2 wt.%, pure coppers obtained optimum electrical conductivity which is 96.8% IACS. However, over-added Y ( 〉 0.5 wt.%) resulted in second phase of Cu 7 Y coarsening and non-homogeneous microstructures forming, which reduces the conductivity of copper. In addition, Y can effectively purify the organization of molten copper.
Type of Medium:
Online Resource
ISSN:
1662-9752
DOI:
10.4028/www.scientific.net/MSF.913
DOI:
10.4028/www.scientific.net/MSF.913.862
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2018
detail.hit.zdb_id:
2047372-2
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