The Effect of High‐Pressure Torsion on Microstructure, Hardness and Corrosion Behavior for Pure Magnesium and Different Magnesium Alloys

2019 ◽  
Vol 21 (3) ◽  
pp. 1801081 ◽  
Author(s):  
Claudio L. P. Silva ◽  
Renata B. Soares ◽  
Pedro Henrique R. Pereira ◽  
Roberto B. Figueiredo ◽  
Vanessa F. C. Lins ◽  
...  
Keyword(s):  
High Pressure ◽  
Magnesium Alloys ◽  
Corrosion Behavior ◽  
High Pressure Torsion ◽  
Pure Magnesium

scholarly journals Cytotoxicity and Corrosion Behavior of Magnesium and Magnesium Alloys in Hank's Solution after Processing by High‐Pressure Torsion

2019 ◽  
Vol 21 (8) ◽  
pp. 1900391 ◽  
Author(s):  
Debora R. Lopes ◽  
Claudio L.P. Silva ◽  
Renata B. Soares ◽  
Pedro Henrique R. Pereira ◽  
Ana Celeste Oliveira ◽  
...  
Keyword(s):  
High Pressure ◽  
Magnesium Alloys ◽  
Corrosion Behavior ◽  
High Pressure Torsion ◽  
Hank’S Solution

scholarly journals Influence of high-pressure torsion deformation on the corrosion behaviour of a bioresorbable Mg-based alloy studied by positron annihilation

2021 ◽  
Author(s):  
Philipp Brunner ◽  
Florian Brumbauer ◽  
Eva-Maria Steyskal ◽  
Oliver Renk ◽  
Annelie-Martina Weinberg ◽  
...  
Keyword(s):  
High Pressure ◽  
Positron Annihilation ◽  
Corrosion Behavior ◽  
High Pressure Torsion ◽  
Corrosion Behaviour ◽  
Torsion Deformation

The effect of high-pressure torsion (HPT) on the corrosion behavior of a bioresorbable MgCaZn alloy (ZX00) is studied by positron annihilation.

Processing Different Magnesium Alloys through HPT

2014 ◽  
Vol 783-786 ◽  
pp. 2617-2622 ◽  
Author(s):  
Livia Raquel C. Malheiros ◽  
Roberto B. Figueiredo ◽  
Terence G. Langdon
Keyword(s):  
Plastic Deformation ◽  
High Pressure ◽  
Magnesium Alloys ◽  
Room Temperature ◽  
High Pressure Torsion ◽  
Structure Refinement ◽  
Hardness Distribution ◽  
Metallic Materials ◽  
Processing Conditions ◽  
Significant Structure

High-Pressure Torsion (HPT) is widely used to refine the structure of metallic materials through the use of severe plastic deformation. This technique is used in this report to process different magnesium alloys using various processing conditions. The high hydrostatic pressure allows processing of these materials at room temperature without cracking. The structure was characterized and hardness distribution was determined at different areas of the processed samples. The results show significant structure refinement and increased hardness. The evolution of the structure and hardness depends on the alloying and HPT processing conditions.

scholarly journals Corrosion Behavior in Hank's Solution of a Magnesium–Hydroxyapatite Composite Processed by High‐Pressure Torsion

2020 ◽  
Vol 22 (12) ◽  
pp. 2000765 ◽  
Author(s):  
Debora Lopes ◽  
Renata B. Soares ◽  
Moara M. Castro ◽  
Roberto B. Figueiredo ◽  
Terence G. Langdon ◽  
...  
Keyword(s):  
High Pressure ◽  
Corrosion Behavior ◽  
High Pressure Torsion ◽  
Hydroxyapatite Composite ◽  
Hank’S Solution

scholarly journals Effect of Numbers of Turns of High‐Pressure Torsion on the Development of Exceptional Ductility in Pure Magnesium

2019 ◽  
Vol 22 (1) ◽  
pp. 1900565 ◽  
Author(s):  
Roberto B. Figueiredo ◽  
Pedro Henrique R. Pereira ◽  
Terence G. Langdon
Keyword(s):  
High Pressure ◽  
High Pressure Torsion ◽  
Pure Magnesium

scholarly journals Effect of High-pressure Torsion on Corrosion Behavior of a Solution-treated Al-Mg-Sc Alloy in a Saline Solution

2019 ◽  
Vol 22 (5) ◽  
Author(s):  
Michelle Dias Alves Lage ◽  
Renata Braga Soares ◽  
Pedro Henrique R. Pereira ◽  
Roberto B. Figueiredo ◽  
Vanessa Freitas C. Lins ◽  
...  
Keyword(s):  
High Pressure ◽  
Corrosion Behavior ◽  
Saline Solution ◽  
High Pressure Torsion ◽  
Solution Treated

Consolidation of Magnesium and Magnesium Alloy Machine Chips Using High-Pressure Torsion

2018 ◽  
Vol 941 ◽  
pp. 851-856 ◽  
Author(s):  
Moara M. de Castro ◽  
Amanda P. Carvalho ◽  
Pedro Henrique R. Pereira ◽  
Augusta C. Isaac Neta ◽  
Roberto Braga Figueiredo ◽  
...  
Keyword(s):  
High Pressure ◽  
Magnesium Alloy ◽  
Optical Microscopy ◽  
High Pressure Torsion ◽  
Processing Technique ◽  
Pure Magnesium ◽  
Alloy Az91 ◽  
Commercially Pure ◽  
Magnesium Alloy Az91

The high-pressure torsion processing technique was used to consolidate and process magnesium-based chips. Chips were prepared by machining commercially pure magnesium and a magnesium alloy AZ91 separately. Optical microscopy and microhardness measurements showed good consolidation of pure magnesium. The magnesium alloy continued to exhibit the boundaries between the chips even after 5 turns of HPT suggesting poor bonding. The results show that soft chips are easier to consolidate through HPT than harder alloys.

Sign in / Sign up

Export Citation Format

Share Document