Indentation creep behaviors of Mg61Cu28Gd11 and (Mg61Cu28Gd11)99.5Sb0.5 bulk metallic glasses at room temperature

2011 ◽  
Vol 29 (3) ◽  
pp. 253-258 ◽  
Author(s):  
Yingdi SUN ◽  
Ziquan LI ◽  
Jinsong LIU ◽  
Mengqi CONG ◽  
Jingya QIN
Keyword(s):  
Metallic Glasses ◽  
Room Temperature ◽  
Bulk Metallic Glasses ◽  
Indentation Creep

scholarly journals Indentation Creep Behavior in Ce-Based Bulk Metallic Glasses at Room Temperature

2005 ◽  
Vol 46 (12) ◽  
pp. 2959-2962 ◽  
Author(s):  
Bingchen Wei ◽  
Taihua Zhang ◽  
Weihuo Li ◽  
Dongmei Xing ◽  
Lingchen Zhang ◽  
...  
Keyword(s):  
Creep Behavior ◽  
Metallic Glasses ◽  
Room Temperature ◽  
Bulk Metallic Glasses ◽  
Indentation Creep

Room Temperature Plasticity of Zr65Al7.5Ni10Cu17.5-xPdx Bulk Metallic Glasses

2007 ◽  
pp. 2054-2058
Author(s):  
Kyosuke Yoshimi ◽  
Hidemi Kato ◽  
Junji Saida ◽  
Akihisa Inoue
Keyword(s):  
Metallic Glasses ◽  
Room Temperature ◽  
Bulk Metallic Glasses

Investigation of thermally activated deformation in amorphous PMMA and Zr-Cu-Al bulk metallic glasses with broadband nanoindentation creep

2009 ◽  
Vol 24 (3) ◽  
pp. 1279-1290 ◽  
Author(s):  
J.B. Puthoff ◽  
J.E. Jakes ◽  
H. Cao ◽  
D.S. Stone
Keyword(s):  
Metallic Glasses ◽  
Bulk Metallic Glasses ◽  
Activation Parameters ◽  
Constant Load ◽  
Nanoindentation Test ◽  
Indentation Creep ◽  
High Data ◽  
Thermally Activated ◽  
Data Points ◽  
Indentation Experiment

The development of nanoindentation test systems with high data collection speeds has made possible a novel type of indentation creep test: broadband nanoindentation creep (BNC). Using the high density of data points generated and analysis techniques that can model the instantaneous projected indent area at all times during a constant-load indentation experiment, BNC can reveal materials properties across a range of strain rates spanning up to five decades (10−4–10 s−1). BNC experiments aimed at measuring activation parameters for plasticity were conducted on three systems: two Zr-based bulk metallic glasses and poly-(methyl methacrylate) (PMMA). The results give insight into the operation of the deformation mechanisms present in the test materials, including the dependence of the deformation rate on the hydrostatic component of the stress for PMMA and the form of the activation energy function for the metallic glasses.

Ductile Fe-based bulk metallic glasses at room temperature

2017 ◽  
Vol 34 (6) ◽  
pp. 751-756 ◽  
Author(s):  
Chao Wan ◽  
Weiming Yang ◽  
Haishun Liu ◽  
Mingqing Zuo ◽  
Qiang Li ◽  
...  
Keyword(s):  
Metallic Glasses ◽  
Room Temperature ◽  
Bulk Metallic Glasses

scholarly journals A Series of Zr-Based Bulk Metallic Glasses with Room Temperature Plasticity

Materials ◽  
2016 ◽  
Vol 9 (6) ◽  
pp. 408 ◽  
Author(s):  
Anhui Cai ◽  
Dawei Ding ◽  
Yong Liu ◽  
Hong Wu ◽  
Weike An ◽  
...  
Keyword(s):  
Metallic Glasses ◽  
Room Temperature ◽  
Bulk Metallic Glasses

Improving Ductility in Nanostructured Materials and Metallic Glasses: “Three Laws”

2009 ◽  
Vol 633-634 ◽  
pp. 657-663 ◽  
Author(s):  
Douglas C. Hofmann ◽  
William L. Johnson
Keyword(s):  
Nanostructured Materials ◽  
Metallic Glasses ◽  
Room Temperature ◽  
Bulk Metallic Glasses ◽  
Brittle Materials ◽  
Nanostructured Composites ◽  
Room Temperature Ductility ◽  
Engineering Materials

Nanostructured materials and bulk metallic glasses are relatively new classes of engineering materials that have promise for unique metals applications. However, both these materials suffer from limited room temperature ductility in unconfined loading geometries. In this work, we present three experimental rules that we have observed to be necessary to toughen bulk metallic glasses. We reason that adaptations to these rules may provide the solution for toughening nanostructured composites and other brittle materials.

Formation, properties, thermal characteristics, and crystallization of hard magnetic Pr–Al–Fe–Cu bulk metallic glasses

2003 ◽  
Vol 18 (9) ◽  
pp. 2208-2213 ◽  
Author(s):  
Zheng Li ◽  
Hai Yang ◽  
Ming Xiang Pan ◽  
De Qian Zhao ◽  
Wan Lu Wang ◽  
...  
Keyword(s):  
Metallic Glasses ◽  
Room Temperature ◽  
Bulk Metallic Glasses ◽  
Thermal Characteristics ◽  
Hysteresis Loops ◽  
Supercooled Liquid ◽  
Supercooled Liquid Region ◽  
Liquid Region ◽  
Crystallization Activation Energy ◽  
Scanning Calorimetry

The Pr55–xAl12+xFe33–yCuy (0 ≤ x ≤ 5, 0 ≤ y ≤ 8) bulk metallic glasses (BMGs) 5 mm in diameter and 100 mm in length were prepared by copper mold suction casting. Hysteresis loops of the Pr55–xAl12+xFe33–yCuy BMGs and the corresponding Pr55Al12Fe30Cu3 crystallized alloy were measured, and the results showed that the Pr55–xAl12+xFe33–yCuy BMGs are hard magnetic, while the completely crystallized Pr55Al12Fe30Cu3 alloy is paramagnetic at room temperature. The thermal behavior and crystallization of the Pr55Al12Fe30Cu3 BMG were studied by differential scanning calorimetry, and the results indicated that the Pr-based BMG has obvious glass transition and a wide supercooled liquid region up to 75 K. The crystallization activation energy for the Pr55Al12Fe30Cu3 BMG is much smaller than that of Zr–Ti–Cu–Ni–Be BMG.

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