scholarly journals Effect of High-Pressure Torsion on Structure and Properties of Ti-15Mo/TiB Metal-Matrix Composite

Materials ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2426 ◽  
Author(s):  
Sergey Zherebtsov ◽  
Maxim Ozerov ◽  
Margarita Klimova ◽  
Nikita Stepanov ◽  
Tatyana Vershinina ◽  
...  
Keyword(s):  
Grain Size ◽  
High Pressure ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
High Pressure Torsion ◽  
Initial State ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Hardening Mechanisms

The microstructure and microhardness evolution of a Ti-15(wt.%)Mo/TiB metal-matrix composite (MMC) during high-pressure torsion (HPT) at 400 °C was studied. The composite was fabricated by spark plasma sintering of a Ti, Mo and TiB2 powders mixture at 1200 °C. In the initial condition, the structure of the composite consisted mainly of body-centered cubic (bcc) Ti solid solution and TiB whiskers. An increase in dislocation density, a considerable decrease in a grain size in the bcc Ti matrix, and breaking/rearrangement of the TiB whiskers were observed during HPT. The (sub)grain size in the bcc Ti matrix attained after 1 revolution was ~75 nm and then gradually decreased to ~55 nm after 5 revolutions. The TiB particle sizes after 5 revolutions was found to be 130–210 nm. The microhardness increased with strain from 575 HV in the initial state to 730 HV after 5 revolutions. Various hardening mechanisms’ contributions in the Ti-15Mo/TiB were evaluated.

scholarly journals Effect of High-Pressure Torsion on Structure and Microhardness of Ti/TiB Metal–Matrix Composite

Metals ◽  
2017 ◽  
Vol 7 (11) ◽  
pp. 507 ◽  
Author(s):  
Sergey Zherebtsov ◽  
Maxim Ozerov ◽  
Nikita Stepanov ◽  
Margarita Klimova ◽  
Yulia Ivanisenko
Keyword(s):  
High Pressure ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
High Pressure Torsion

Influence of Constrained High-Pressure Torsion on Microstructure and Mechanical Properties of an Aluminum-Based Metal Matrix Composite

JOM ◽  
2020 ◽  
Vol 72 (8) ◽  
pp. 2898-2911
Author(s):  
Galiia Korznikova ◽  
Rinat Kabirov ◽  
Konstantin Nazarov ◽  
Rinat Khisamov ◽  
Ruslan Shayakhmetov ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Pressure ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
High Pressure Torsion ◽  
Microstructure And Mechanical Properties

scholarly journals Low Temperature Sintering of Aluminum-Zircon Metal Matrix Composite Prepared by Spark Plasma Sintering

2016 ◽  
Vol 19 (5) ◽  
pp. 1189-1192 ◽  
Author(s):  
Ehsan Ghasali ◽  
Hossein Nouranian ◽  
Ali Rahbari ◽  
Houdsa Majidian ◽  
Masoud Alizadeh ◽  
...  
Keyword(s):  
Low Temperature ◽  
Metal Matrix Composite ◽  
Spark Plasma Sintering ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Low Temperature Sintering ◽  
Plasma Sintering ◽  
Spark Plasma

scholarly journals Microstructure and microhardness of an Al-6061 metal matrix composite processed by high-pressure torsion

2016 ◽  
Vol 118 ◽  
pp. 270-278 ◽  
Author(s):  
Saleh N. Alhajeri ◽  
Khaled J. Al-Fadhalah ◽  
Abdulla I. Almazrouee ◽  
Terence G. Langdon
Keyword(s):  
High Pressure ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
High Pressure Torsion ◽  
Al 6061
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