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Glassy steel optimized for glass-forming ability and toughness Appl. Phys. Lett. 95, 041907 (2009); doi:10.1063/1.3184792 Marios D. Demetriou, Georg Kaltenboeck, Jin-Yoo Suh, Glenn Garrett, Michael Floyd, Chase Crewdson, Douglas C. Hofmann, Henry Kozachkov, Aaron Wiest, Joseph P. Schramm, and William L. Johnson Keck Engineering Laboratories, California Institute of Technology, Pasadena, California 91125, USA Abstract 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-forming ability and high toughness demonstrated by the present alloys is uncommon in Fe-based systems, and is attributed to the ability of these compositions to form stable glass configurations associated with low activation barriers for shear flow, which tend to promote plastic flow and give rise to a toughness higher than other known Fe-based bulk-glass-forming systems. [ Last edited by hslining on 2009-9-10 at 13:48 ] |
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Glassy steel optimized for glass-forming ability and toughness Appl. Phys. Lett. 95, 041907 (2009); doi:10.1063/1.3184792 Marios D. Demetriou, Georg Kaltenboeck, Jin-Yoo Suh, Glenn Garrett, Michael Floyd, Chase Crewdson, Douglas C. Hofmann, Henry Kozachkov, Aaron Wiest, Joseph P. Schramm, and William L. Johnson Keck Engineering Laboratories, California Institute of Technology, Pasadena, California 91125, USA Abstract 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-forming ability and high toughness demonstrated by the present alloys is uncommon in Fe-based systems, and is attributed to the ability of these compositions to form stable glass configurations associated with low activation barriers for shear flow, which tend to promote plastic flow and give rise to a toughness higher than other known Fe-based bulk-glass-forming systems. |
2Â¥2009-08-02 09:43:48
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3Â¥2009-08-20 15:15:08
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