scholarly journals Exploration of phase structure evolution induced by alloying elements in Ti alloys via a chemical-short-range-order cluster model

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Beibei Jiang ◽  
Qing Wang ◽  
Chuang Dong ◽  
Peter K. Liaw
Keyword(s):  
Phase Structure ◽  
Cluster Model ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Alloying Elements ◽  
Structure Evolution ◽  
Ti Alloys

scholarly journals Short-range-order (SRO) in quenched Ni-rich Ni-Ti alloys

2016 ◽  
pp. 635-636
Author(s):  
Saeid Pourbabak ◽  
Xiebing Wang ◽  
Bert Verlinden ◽  
Jan Van Humbeeck ◽  
Dominique Schryvers
Keyword(s):  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Ti Alloys

Short-range order to long-range order transition in a Cu-Ti alloy

1993 ◽  
Vol 51 ◽  
pp. 1180-1181
Author(s):  
J.S. Lee ◽  
R.W. Carpenter ◽  
H. Lim ◽  
W.K. Choo
Keyword(s):  
Electron Diffraction ◽  
Diffraction Pattern ◽  
Long Range ◽  
Electron Diffraction Pattern ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Ti Alloy ◽  
Long Range Order ◽  
Ti Alloys

Cu-Ti alloys have received attention due to their excellent age-hardenability. The age hardening phenomenon of Cu-Ti alloys is closely related to the early stage transformation involving short-range order (SRO), spinodal decomposition, and long-range order (LRO). Despite many researches, the transition from SRO to LRO state in this alloy system is still not understood. Woychik et al. have found {1 1/2 0} SRO reflections in an electron diffraction pattern of an as-rapidly solidified (RS) Cu-15at.%Ti alloy (All indices are referred with respect to the fcc structure in this paper.). with aging, the SRO reflections were replaced by the 4/5{l 1/2 0} LRO (Dla) reflections. Recently, Yoo found the {1/2 1/2 0} spots as well as the {1 1/2 0} spots in an electron diffraction pattern of an as-RS Cu-15at.%Ti alloy. This result may show that some other metastable phases can be present before the formation of the LRO phase. In the present paper, the initial stages of ordering process will be described.

ORDERING BEHAVIOR OF FCC AND HCP ALLOYS IN Ni-Hf AND Re-Ti SYSTEMS

2006 ◽  
Vol 20 (17) ◽  
pp. 2425-2435
Author(s):  
TAHIR ABBAS ◽  
RANA M. ARIF KHALIL ◽  
ANWAR MANZOOR RANA ◽  
MAHTAB-ULLAH
Keyword(s):  
Transition Metal ◽  
Concentration Dependence ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Correct Sign ◽  
Ti Alloys ◽  
Model Pseudopotential

The concentration dependence of atomic short range order (SRO) has been studied in Ni 100-x Hf x and Re 100-x Ti x alloys (where x = 2, 5, 10, 15, 20 at.%) using the framework of transition metal model pseudopotential (TMMP). The ordering energies and Warren–Cowley SRO parameters were calculated for the Ni-Hf and Re-Ti alloys. It was found that this model predicted the correct sign of SRO for Ni 100-x Hf x system but failed in the case of Re 100-x Ti x alloys.

Evidence of short-range order in the disordered Cu-Ti alloys

1993 ◽  
Vol 28 (18) ◽  
pp. 5010-5013 ◽  
Author(s):  
T. Abbas ◽  
A. B. Ziya
Keyword(s):  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Ti Alloys

scholarly journals Anisotropic cluster model for the short-range order inCu1−xPdx-type alloys

1998 ◽  
Vol 57 (18) ◽  
pp. 11132-11140
Author(s):  
P. De Meulenaere ◽  
M. Rodewald ◽  
G. Van Tendeloo
Keyword(s):  
Cluster Model ◽  
Short Range ◽  
Short Range Order ◽  
Range Order
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