Spherical nanoindentation creep behavior of nanocrystalline and coarse-grained CoCrFeMnNi high-entropy alloys

DH Lee, MY Seok, Y Zhao, IC Choi, J He, Z Lu, JY Suh… - Acta Materialia, 2016 - Elsevier
Time-dependent plastic deformation behavior of nanocrystalline (nc) and coarse-grained
(cg) CoCrFeMnNi high-entropy alloys (HEAs) was systematically explored through a series …

Evidence for exceptional low temperature ductility in polycrystalline magnesium processed by severe plastic deformation

RB Figueiredo, S Sabbaghianrad, A Giwa, JR Greer… - Acta Materialia, 2017 - Elsevier
An investigation was conducted to examine the mechanical behavior and microstructure
evolution during deformation of ultrafine-grained pure magnesium at low temperatures …

[HTML][HTML] Overcoming the paradox of strength and ductility in ultrafine-grained materials at low temperatures

P Kumar, M Kawasaki, TG Langdon - Journal of materials science, 2016 - Springer
Ultrafine-grained (UFG) materials with grain sizes in the submicrometer or nanometer range
may be prepared through the application of severe plastic deformation (SPD) to bulk coarse …

Ultrastrong nanocrystalline stainless steel and its Hall-Petch relationship in the nanoscale

F Yin, GJ Cheng, R Xu, K Zhao, Q Li, J Jian, S Hu… - Scripta Materialia, 2018 - Elsevier
An ultrastrong nanocrystalline stainless steel with a yield strength of~ 2.0 GPa was reported
and the Hall-Petch equation of the stainless steel in the nanoscale was determined. The …

Strain rate sensitivity of the ultrastrong gradient nanocrystalline 316L stainless steel and its rate-dependent modeling at nanoscale

F Yin, S Hu, R Xu, X Han, D Qian, W Wei, L Hua… - International Journal of …, 2020 - Elsevier
We fabricate ultrastrong gradient nanocrystalline (NC) 316L stainless steel with an
extremely fined grain size of 5 nm using the Ultrasonic Strain Engineering Technology …

Grain Boundary Phenomena in an Ultrafine‐Grained Al–Zn Alloy with Improved Mechanical Behavior for Micro‐Devices

NQ Chinh, RZ Valiev, X Sauvage… - Advanced …, 2014 - Wiley Online Library
Abstracts The microstructural and mechanical properties of an ultrafine‐grained (UFG) Al–
Zn alloy processed by high‐pressure torsion (HPT) are investigated using depth‐sensing …

[HTML][HTML] The strength–grain size relationship in ultrafine-grained metals

N Balasubramanian, TG Langdon - Metallurgical and Materials …, 2016 - Springer
Metals processed by severe plastic deformation (SPD) techniques, such as equal-channel
angular pressing (ECAP) and high-pressure torsion (HPT), generally have submicrometer …

Effect of Zn content on microstructure evolution in Al–Zn alloys processed by high-pressure torsion

AQ Ahmed, D Ugi, J Lendvai, MY Murashkin… - Journal of Materials …, 2023 - Springer
Al–Zn alloys having different Zn contents of 2, 5, 10 and 30 wt% were processed by high-
pressure torsion (HPT) to produce ultrafine-grained (UFG) materials. Microstructural features …

Deformation characteristics of WC micropillars

T Csanádi, M Bľanda, A Duszová, NQ Chinh… - Journal of the European …, 2014 - Elsevier
The mechanical response under nano-compression test of single crystal tungsten-carbide
(WC) micropillars prepared by focused ion beam from oriented facets of WC grains in WC …

Characterizing Microstructural and Mechanical Properties of Al–Zn Alloys Processed by High‐Pressure Torsion

NQ Chinh, P Szommer, J Gubicza… - Advanced …, 2020 - Wiley Online Library
Herein, the characterization of microstructures and mechanical properties of Al–Zn alloys
ultrafine‐grained (UFG) by using high pressure torsion (HPT) is surveyed. Emphasis is …