Paper Title:
Microstructure and Mechanical Properties of High Strength Brass Alloy with Some Elements
  Abstract

The purpose of this research is the development of a high strength α-β brass (Cu-40Zn) with additions of elements of small solid solubility in brass. Cu-40Zn with 0.6 wt.% Tin (Sn), 0.73 wt.% Chromium (Cr) and 0.51 wt.% Iron (Fe) were prepared by casting (Cu-40Zn-CrFeSn). The yield stress (YS) and ultimate tensile stress (UTS) of extruded Cu-40Zn-CrFeSn was 291 MPa and 601 MPa, 23 % and 36 % higher than that of extruded binary Cu-40Zn alloy. Vickers micro hardness of 158 Hv was higher than that of extruded Cu-40Zn alloy (131 Hv). In addition, the elongation of extruded Cu-40Zn-CrFeSn was 35 %. The strengthening mechanisms of these alloys were considered as follows; one was a solid solution strengthening of Cr, Fe and Sn additives which were identified by SEM-EDS. The other was increasing of the area ratio of β-phase in Cu-40Zn-CrFeSn, compared to that of Cu-40Zn.

  Info
Periodical
Materials Science Forum (Volumes 654-656)
Main Theme
Edited by
Jian-Feng Nie and Allan Morton
Pages
2552-2555
DOI
10.4028/www.scientific.net/MSF.654-656.2552
Citation
H. Atsumi, H. Imai, S. F. Li, Y. Kousaka, A. Kojima, K. Kondoh, "Microstructure and Mechanical Properties of High Strength Brass Alloy with Some Elements", Materials Science Forum, Vols. 654-656, pp. 2552-2555, 2010
Online since
June 2010
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