Next Article in Journal
Vacuum Brazing Ti–15–3 with a TiNiNb Braze Alloy
Previous Article in Journal
Initial Transfer Behavior and Solidification Structure Evolution in a Large Continuously Cast Bloom with a Combination of Nozzle Injection Mode and M-EMS
Open AccessArticle

Effects of Zr, Y on the Microstructure and Properties of As-Cast Cu-0.5Y-xZr (wt.%) Alloys

1
State Key laboratory of Nonferrous Metals and Processes, GRINM Group Co., Ltd, Beijing 100088, China
2
GRIMAT Engineering Institute Co., Ltd., Beijing 101407, China
3
School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China
4
College of Engineering, Bohai University, Jinzhou 121000, China
*
Author to whom correspondence should be addressed.
Metals 2019, 9(10), 1084; https://doi.org/10.3390/met9101084
Received: 21 September 2019 / Revised: 5 October 2019 / Accepted: 7 October 2019 / Published: 9 October 2019
In this paper, the microstructure and properties of as-cast Cu-Y-Zr alloys with different Zr content were studied in order to investigate whether the precipitates in copper alloys would interact with each other by adding Y and Zr simultaneously. As-cast Cu-0.5Y-xZr (wt.%, x = 0.05 and 0.1, nominal composition) alloys were prepared by vacuum melting in this study. Scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), and transmission electron microscopy (TEM) were used to observe the microstructure of the alloys. The mechanical properties of the alloys were tested by universal material testing machine at room temperature. The effects of Zr content on the microstructure and mechanical properties of the alloys were explored. As shown by the research results, in the as-cast Cu-0.5Y-xZr (wt.%) alloys, the precipitated phase was the Cu5Y/Cu5Zr phase and ranged from 10 nm to 70 nm in size; when the Zr content increased from 0.05 wt.% to 0.1 wt.%, both the tensile strength and elongation rate of the alloys increased; when the Zr content was 0.1 wt.%, the tensile strength was 225 MPa and the elongation rate was 22.5%. View Full-Text
Keywords: Cu-Y-Zr alloys; precipitated phase; mechanical properties; microstructure Cu-Y-Zr alloys; precipitated phase; mechanical properties; microstructure
Show Figures

Figure 1

MDPI and ACS Style

Liang, D.; Wang, N.; Wang, Y.; Liu, Z.; Fu, Y. Effects of Zr, Y on the Microstructure and Properties of As-Cast Cu-0.5Y-xZr (wt.%) Alloys. Metals 2019, 9, 1084.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop