Correlation between phase transformation and surface morphology under severe plastic deformation of theAl87Ni8La5 amorphous alloy

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.

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Ultra-severe plastic deformation: Evolution of microstructure, phase transformation and hardness in immiscible magnesium-based systems

Materials Science and Engineering A ◽

10.1016/j.msea.2017.06.076 ◽

2017 ◽

Vol 701 ◽

pp. 158-166 ◽

Cited By ~ 30

Author(s):

Kaveh Edalati ◽

Ryoko Uehiro ◽

Keisuke Fujiwara ◽

Yuji Ikeda ◽

Hai-Wen Li ◽

...

Keyword(s):

Plastic Deformation ◽

Phase Transformation ◽

Severe Plastic Deformation ◽

Evolution Of Microstructure

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

Materials Letters ◽

10.1016/j.matlet.2016.08.113 ◽

2016 ◽

Vol 185 ◽

pp. 109-111 ◽

Cited By ~ 3

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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Severe Plastic Deformation of Amorphous Alloys

Materials Science Forum ◽

10.4028/www.scientific.net/msf.584-586.227 ◽

2008 ◽

Vol 584-586 ◽

pp. 227-230 ◽

Cited By ~ 6

Author(s):

Alex M. Glezer ◽

Sergey V. Dobatkin ◽

Margarita R. Plotnikova ◽

Anna V. Shalimova

Keyword(s):

Mechanical Properties ◽

Plastic Deformation ◽

Amorphous Alloy ◽

Severe Plastic Deformation ◽

Physical Properties ◽

Plastic Flow ◽

Low Temperatures ◽

Amorphous Alloys ◽

Thermally Activated ◽

Different Temperatures

The structure and mechanical properties of amorphous alloy Ni44Fe29Co15Si2B10 after severe plastic deformation (SPD) in Bridgman chamber at the different temperatures (77 and 298 K) have been studied. It is shown that the early stages of the SPD of amorphous alloy cause a noticeable decrease in microhardness HV and significant changes in the physical properties. With increasing the value of SPD the transition from inhomogeneous to homogeneous (or to qualitatively different) mode of plastic flow is observed, which is accompanied by the effects of homogeneous nanocrystallization. The nanoparticle size does not exceed 10 nm. It is established that the thermally activated nanocrystallization processes can occur at very low temperatures (77 K).

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