Microstructure Changes in Sn- or Gd-Modified Cu-11%Al-10%Mn Alloy

被引:2
|
作者
Souza, J. S. [1 ]
Silva, R. A. G. [1 ]
机构
[1] Univ Fed Sao Paulo, Inst Ciencias Ambientais Quim & Farmaceut ICAQF, Diadema, SP, Brazil
基金
巴西圣保罗研究基金会;
关键词
Gd addition; Sn addition; Phase transitions; Cu-Al-Mn alloys; Ferromagnetic behavior; beta Phase decomposition; AL; PHASE; STABILIZATION; TRANSITIONS; BEHAVIOR;
D O I
10.1007/s13632-021-00710-4
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
The effects of the addition of Sn or Gd on the phase transitions of the Cu-11%Al-10%Mn alloy were studied to identify and characterize the phases formed at each transition observed in the differential scanning calorimetry curves. The characterization was carried out by X-ray diffraction, microhardness tests, and magnetization measurements as a function of the applied field. The microstructure was investigated by optical microscopy and scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy. The results showed that the addition of Sn stabilizes the beta phases, and changes the phases present in the Cu-11%Al-10%Mn alloy, whereas the addition of Gd does not interfere with the phase transitions. In addition, Sn improves the alloy saturation magnetization, while addition of Gd deteriorates it.
引用
收藏
页码:116 / 126
页数:11
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