Nanostructure formation and phase transformation in intermetallic compounds during severe plastic deformation

2000 ◽  
Vol 10 (PR6) ◽  
pp. Pr6-33-Pr6-38 ◽  
Author(s):  
O. Dimitrov ◽  
A. V. Korznikov ◽  
G. F. Korznikova ◽  
G. Tram
Keyword(s):  
Plastic Deformation ◽  
Phase Transformation ◽  
Severe Plastic Deformation ◽  
Intermetallic Compounds ◽  
Nanostructure Formation

Phase Transformations of the Ti-40% Nb Alloy Under External Influence

2016 ◽  
Vol 683 ◽  
pp. 174-180 ◽  
Author(s):  
Yuri P. Sharkeev ◽  
Zhanna G. Kovalevskaya ◽  
Margarita A. Khimich ◽  
Vladimir A. Bataev ◽  
Qi Fang Zhu ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Phase Transformation ◽  
Severe Plastic Deformation ◽  
Phase Transformations ◽  
Optical Metallography ◽  
External Influence ◽  
Β Phase ◽  
Α Phase ◽  
Pressing Operation ◽  
Loading Axis

The phase transformations of the alloy Ti-40 mas % Nb after tempering and severe plastic deformation are studied. The phase transformations of the alloy according to the type and conditions of external influences are analyzed using methods of XRD, SEM and optical metallography. It is determined that inverse phase transformation of the metastable α''-phase to equilibrium β-phase is carried out after severe plastic deformation. Complete phase transformation α'' → β is typical for the mode, which consists of three pressing operation with the change of the loading axis in cramped conditions, followed by a multi-pass rolling in grooved rolls.

Micro-Nanostructure Formation Mechanism of High-Mg Al Alloy

2019 ◽  
Vol 11 (10) ◽  
pp. 1338-1348
Author(s):  
Zeyi Hu ◽  
Wenliang Liu ◽  
Caihe Fan
Keyword(s):  
Mechanical Properties ◽  
Plastic Deformation ◽  
Severe Plastic Deformation ◽  
Formation Mechanism ◽  
Microstructure Evolution ◽  
Coarse Grained ◽  
Al Alloy ◽  
Nanostructure Formation ◽  
Superior Mechanical Properties ◽  
Alloy Strength

Micro-nanostructured materials have superior mechanical properties compared with coarse-grained materials. Severe plastic deformation (SPD) can effectively refine grains, resulting in the formation of typical micro-nanostructures. Fine grains improve alloy strength and toughness. This review summarizes the application of several typical SPD methods for high-Mg Al alloy. The effects of different SPD methods on the microstructure evolution, micro-nanostructure formation mechanism, and mechanical properties of the high-Mg Al alloy are analyzed in sequence. Finally, the development and future of the high-Mg Al alloy micro/nanostructure regulation are described.

Phase transformation in Fe–Mn–C alloys by severe plastic deformation under high pressure

2016 ◽  
Vol 185 ◽  
pp. 109-111 ◽  
Author(s):  
Nozomu Adachi ◽  
Ningning Wu ◽  
Yoshikazu Todaka ◽  
Hideyuki Sato ◽  
Rintaro Ueji
Keyword(s):  
Plastic Deformation ◽  
High Pressure ◽  
Phase Transformation ◽  
Severe Plastic Deformation
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