Achieving ultra-high strength of Al-Cu-Li alloys by the combination of high pressure torsion and age-hardening

Author(s):  
Jiahui Dong ◽  
Nong Gao ◽  
Ying Chen ◽  
Lingfei Cao ◽  
Hui Song ◽  
...  
2021 ◽  
Author(s):  
Jiahui Dong ◽  
Nong Gao ◽  
Ying Chen ◽  
Lingfei Cao ◽  
Hui Song ◽  
...  

2012 ◽  
Vol 546 ◽  
pp. 82-89 ◽  
Author(s):  
Seungwon Lee ◽  
Zenji Horita ◽  
Shoichi Hirosawa ◽  
Kenji Matsuda

2014 ◽  
Vol 49 (19) ◽  
pp. 6550-6557 ◽  
Author(s):  
Jorge M. Cubero-Sesin ◽  
Hiroyuki In ◽  
Makoto Arita ◽  
Hideaki Iwaoka ◽  
Zenji Horita

2006 ◽  
Vol 519-521 ◽  
pp. 45-54 ◽  
Author(s):  
Terence G. Langdon

Processing through the application of severe plastic deformation (SPD) has become important over the last decade because it is now recognized that it provides a simple procedure for producing fully-dense bulk metals with grain sizes lying typically in the submicrometer range. There are two major procedures for SPD processing. First, equal-channel angular pressing (ECAP) refers to the repetitive pressing of a metal bar or rod through a die where the sample is constrained within a channel bent through an abrupt angle at, or close to, 90 degrees. Second, high-pressure torsion (HPT) refers to the procedure in which the sample, generally in the form of a thin disk, is subjected to a very high pressure and concurrent torsional straining. Both of these processes are capable of producing metallic alloys with ultrafine grain sizes and with a reasonable degree of homogeneity. Furthermore, the samples produced in this way may exhibit exceptional mechanical properties including high strength at ambient temperature through the Hall-Petch relationship and a potential superplastic forming capability at elevated temperatures. This paper reviews these two procedures and gives examples of the properties of aluminum alloys after SPD processing.


2016 ◽  
Vol 57 (9) ◽  
pp. 1471-1475 ◽  
Author(s):  
Chihiro Watanabe ◽  
Masakazu Hibino ◽  
Ryoichi Monzen ◽  
Seiichiro Ii ◽  
Koichi Tsuchiya

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