The Mg-Al-Zn-Mn-Ca-Sr alloy system: Backbone of understanding phase formation in AXJ alloys and modifications of AZ and AM alloys with Ca or Sr

2016 ◽  
pp. 437-439
Author(s):  
Andreas Janz ◽  
Joachim Groebner ◽  
Rainer Schmid-Fetzer
Keyword(s):  
Phase Formation ◽  
Alloy System

scholarly journals Phase Formation during Solidification of Mg-Nd-Zn Alloys: An In Situ Synchrotron Radiation Diffraction Study

Materials ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 1637 ◽  
Author(s):  
Domonkos Tolnai ◽  
Tungky Subroto ◽  
Serge Gavras ◽  
Ricardo Buzolin ◽  
Andreas Stark ◽  
...  
Keyword(s):  
Rare Earth ◽  
Synchrotron Radiation ◽  
Diffraction Study ◽  
Phase Formation ◽  
Theoretical Calculations ◽  
Alloy System ◽  
Zn Addition ◽  
Synchrotron Radiation Diffraction ◽  
Zn Alloys

Mg-4Nd base alloys with Zn additions of 3, 5 and 8 wt % were investigated with in situ synchrotron radiation diffraction during solidification. This method enabled the investigation of phase formation and transformation in the alloys. The diffraction results were supported with TEM observations on the as-solidified samples. The results show the effect of increased Zn addition on stabilizing the Mg3RE phase (RE—rare earth). The experimental results agree only partially with the theoretical calculations indicating the need to improve the existing thermodynamic database on the alloy system.

Mechanically induced valence fluctuation and new f.c.c. phase formation in the immiscible CeYb alloy system

1993 ◽  
Vol 198 (1-2) ◽  
pp. 105-109 ◽  
Author(s):  
E. Ivanov ◽  
K. Sumiyama ◽  
H. Yamauchi ◽  
K. Yanai ◽  
K. Suzuki
Keyword(s):  
Phase Formation ◽  
Alloy System ◽  
Valence Fluctuation

Study of decagonal quasicrystalline phase formation in the AI-Ni-Fe alloy system

1994 ◽  
Vol 69 (3) ◽  
pp. 141-146 ◽  
Author(s):  
U. Lemmerz ◽  
B. Grushko ◽  
C. Freiburg ◽  
M. Jansen
Keyword(s):  
Phase Formation ◽  
Alloy System ◽  
Quasicrystalline Phase

The effect of Ti, Nb, and Ta additions to ZrAlCu metallic glass on the crystallization and formation of the icosahedral phase

2007 ◽  
Vol 22 (4) ◽  
pp. 1093-1097 ◽  
Author(s):  
J.B. Qiang ◽  
W. Zhang ◽  
G.Q. Xie ◽  
A. Inoue
Keyword(s):  
Transition Metals ◽  
Metallic Glass ◽  
Phase Formation ◽  
Crystallization Behavior ◽  
Alloy System ◽  
Primary Crystallization ◽  
Icosahedral Phase ◽  
Necessary Condition ◽  
Present Alloy ◽  
Heats Of Mixing

The addition of Ti, Nb, or Ta altered the crystallization behavior of the Zr65Al7.5Cu27.5 glass, and a metastable nanoscaled I-phase was obtained on primary crystallization of these quaternary glasses. The complete substitution of Al by Nb also led to the precipitation of I-phase upon crystallization. Negative heats of mixing between the addition metals and the transition metals of the mother alloy were demonstrated to be not a necessary condition for I-phase formation in the present alloy system.

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