Additive Manufacturing of Advanced Multi-Component Alloys: Bulk Metallic Glasses and High Entropy Alloys

2017 ◽  
Vol 20 (5) ◽  
pp. 1700874 ◽  
Author(s):  
Xiaopeng Li
Keyword(s):  
Additive Manufacturing ◽  
Metallic Glasses ◽  
Bulk Metallic Glasses ◽  
High Entropy Alloys ◽  
High Entropy

scholarly journals Deformation Behavior of Bulk Metallic Glasses and High Entropy Alloys under Complex Stress Fields: A Review

Entropy ◽  
2019 ◽  
Vol 21 (1) ◽  
pp. 54 ◽  
Author(s):  
Shunhua Chen ◽  
Jingyuan Wang ◽  
Lei Xia ◽  
Yucheng Wu
Keyword(s):  
Plastic Deformation ◽  
Metallic Glasses ◽  
Deformation Behavior ◽  
Bulk Metallic Glasses ◽  
Complex Stress ◽  
Deformation Mechanisms ◽  
Stress Fields ◽  
High Entropy Alloys ◽  
High Entropy ◽  
Stress States

The plastic deformation of bulk metallic glasses (BMGs) depends significantly on applied stress states, and more importantly, in practical applications of BMGs as structural materials, they always deform under complex stress fields. The understanding of deformation behavior of BMGs under complex stress fields is important not only for uncovering the plastic deformation mechanisms of BMGs, but also for developing BMG components with excellent mechanical performance. In this article, we briefly summarize the recent research progress on the deformation behavior of BMGs under complex stress fields, including the formation and propagation of shear bands, tunable macroscopic plasticity, and serrated plastic flows. The effect of complex stress fields on the plastic deformation mechanisms of BMGs is discussed from simple stress gradient to tailored complex stress fields. The deformation behavior of high entropy alloys (HEAs) under complex stress states has also been discussed. Challenges, potential implications and some unresolved issues are proposed.

Minor alloying behavior in bulk metallic glasses and high-entropy alloys

2008 ◽  
Vol 51 (4) ◽  
pp. 427-437 ◽  
Author(s):  
Yong Zhang ◽  
YunJun Zhou ◽  
XiDong Hui ◽  
MeiLing Wang ◽  
GuoLiang Chen
Keyword(s):  
Metallic Glasses ◽  
Bulk Metallic Glasses ◽  
High Entropy Alloys ◽  
High Entropy

Mechanical Properties and Structures of High Entropy Alloys and Bulk Metallic Glasses Composites

2010 ◽  
Vol 654-656 ◽  
pp. 1058-1061 ◽  
Author(s):  
Yong Zhang
Keyword(s):  
Mechanical Properties ◽  
Metallic Glasses ◽  
Tensile Ductility ◽  
Bulk Metallic Glasses ◽  
Phase Changes ◽  
High Entropy Alloys ◽  
High Entropy ◽  
Structural Applications ◽  
Bridgman Solidification ◽  
Packing Efficiency

Bulk metallic glasses (BMGs) and high entropy alloys (HEAs) have unique structures at the length scales of micro- and nano-metre, and exhibit unique properties, which make them potential materials for structural applications. The tensile ductility of dendrite/BMG composites can be greatly improved by Bridgman solidification. The BCC structured HEA with a composition of Ti0.5AlCoCrFeNi exhibits ultrahigh fracture strength which is competitive to most of the BMGs, moreover, the strength can be sustained at high temperatures. The phase changes of HEAs are closely related to the atomic packing efficiency (APE).

Sign in / Sign up

Export Citation Format

Share Document