Results 41 to 50 of about 669,450 (300)

Glassy steel optimized for glass-forming ability and toughness [PDF]

, 2009
An alloy development strategy coupled with toughness assessments and ultrasonic measurements is implemented to design a series of iron-based glass-forming alloys that demonstrate improved glass-forming ability and toughness. The combination of good glass-
Crewdson, Chase, Demetriou, Marios D., Floyd, Michael, Garrett, Glenn, Hofmann, Douglas C., Johnson, William L., Kaltenboeck, Georg, Kozachkov, Henry, Schramm, Joseph P., Suh, Jin-Yoo, Wiest, Aaron   +10 more
core   +1 more source

Excessively High Vapor Pressure of Al-based Amorphous Alloys

Metals, 2015
Aluminum-based amorphous alloys exhibited an abnormally high vapor pressure at their approximate glass transition temperatures. The vapor pressure was confirmed by the formation of Al nanocrystallites from condensation, which was attributed to weight ...
Jae Im Jeong, Sung Hyuk Lee, Je-Beom Jeon, Suk Jun Kim   +3 more
doaj   +1 more source

Reduced Glass-Transition Temperature versus Glass-Forming Ability in FeCoB-Based Amorphous Alloys

Archives of Metallurgy and Materials, 2016
This work presents studies concerning the relationship between reduction of glass transition temperature Trg and the glass-forming ability of FeCoB-based alloys.
Nabiałek M.
doaj   +1 more source

Calculating glass-forming ability in absence of key kinetic and thermodynamic parameters [PDF]

, 2010
Glass-forming ability (GFA) as defined by a critical cooling rate R_c to vitrify a liquid upon solidification is a complex function of many parameters.
Johnson, William L., Schroers, Jan, Wirth, Brian D., Xu, Donghua   +3 more
core   +1 more source

Strain Rate Induced Crystallization in Bulk Metallic Glass-Forming Liquid [PDF]

, 2006
We report on the solidification of Au49Ag5.5Pd2.3Cu26.9Si16.3 bulk metallic glass under various strain rates. Using a copper mold casting technique with a low strain rate during solidification, this alloy is capable of forming glassy rods of at least 5 ...
Johnson, William L., Lohwongwatana, Boonrat, Schroers, Jan   +2 more
core   +1 more source

Thermodynamics of Cu47Ti34Zr11Ni8, Zr52.5Cu17.9Ni14.6Al10Ti5 and Zr57Cu15.4Ni12.6Al10Nb5 bulk metallic glass forming alloys [PDF]

, 2000
The differences in the thermodynamic functions between the liquid and the crystalline states of three bulk metallic glass forming alloys, Cu47Ti34Zr11Ni8, Zr52.5Cu17.9Ni14.6Al10Ti5, and Zr57Cu15.4Ni12.6Al10Nb5, were calculated.
Busch, R., Fecht, H. J., Glade, S. C., Johnson, W. L., Lee, D. S., Wunderlich, R. K.   +5 more
core   +2 more sources

Effects of Si solute on the glass formation and atomic structure of Pd liquid

, 2018
Molecular dynamics simulations were performed to study the effects of Si solute on the glass formation and crystallization of Pd liquid. Pure Pd sample prepared by quenching process with cooling rate of $10^{13}$ K/s can be in an amorphous state but the ...
Ho, K. M., Tang, L., Wang, C. Z., Wen, T. Q., Yang, Z. J.   +4 more
core   +1 more source

Effect of microalloying on the toughness of metallic glasses [PDF]

, 2012
The effect of microalloying on the toughness of Cu-Ti-based metallic glasses is explored. Minor additions of Si and Sn in glass former Cu_(47)Ti_(34)Zr_(11)Ni_8 known to improve glass-forming ability are found here to sharply decrease toughness. The drop
Chen, Jason, Demetriou, Marios D., Garrett, Glenn R., Johnson, William L.   +3 more
core   +1 more source

Effect of Minor Ce Substitution for Pr on the Glass Formability and Magnetocaloric Effect of a Fe₈₈Zr₄Pr₄B₄ Metallic Glass

Metals, 2023
In the present work, Fe88Zr4Pr3B4Ce1 metallic glass (MG) was successfully prepared by minor Ce substitution for Pr, and compared with Fe88Zr4Pr4B4 MG in terms of glass forming ability (GFA), magnetic and magnetocaloric properties.
Li-Ze Zhu, Qiang Wang, Shu-Hui Zheng, Peng-Jie Wang, Ding Ding, Ben-Zhen Tang, Peng Yu, Jin-Lei Yao, Lei Xia   +8 more
doaj   +1 more source

Models and algorithms for the next generation of glass transition studies [PDF]

, 2017
Successful computer studies of glass-forming materials need to overcome both the natural tendency to structural ordering and the dramatic increase of relaxation times at low temperatures. We present a comprehensive analysis of eleven glass-forming models
Berthier, Ludovic, Coslovich, Daniele, Ninarello, Andrea   +2 more
core   +5 more sources