scholarly journals Suppression of Macroscopic Defects through the Control of Friction between Workpiece and Dies in a Forged Magnesium Alloy Part with Ribs

2008 ◽  
Vol 49 (5) ◽  
pp. 898-902 ◽  
Author(s):  
Akira Takara ◽  
Li-Fu Chian ◽  
Sung Wook Chung ◽  
Hidetoshi Somekawa ◽  
Hiroyuki Watanabe ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Alloy Part

Study of Residual Stresses Distribution Generated from Milling of Magnesium Alloy Parts

2014 ◽  
Vol 657 ◽  
pp. 18-22 ◽  
Author(s):  
Bogdan Chirita ◽  
Nicolae Catalin Tampu
Keyword(s):  
Mechanical Properties ◽  
Magnesium Alloy ◽  
Residual Stresses ◽  
Surface Quality ◽  
Specific Weight ◽  
Superficial Layer ◽  
Medical Industry ◽  
Alloy Part

Magnesium alloys exhibit a very good ratio of mechanical properties versus specific weight, thus making it an important choice for parts used in automotive, aeronautic and medical industry. The distribution of residual stress in the superficial layer of the material is regarded as one of the factors defining the surface quality of a machined part. It is therefore important to know this distribution as it is closely related to fatigue and corrosion resistance, especially for the parts working in aggressive environments (i.e. biomedical devices). The present paper focuses on the determination of the residual stresses induced in a magnesium alloy part processed by milling, and their effects on surface quality.

scholarly journals Individual effect of recrystallisation nucleation sites on texture weakening in a magnesium alloy: Part 2- shear bands

2018 ◽  
Vol 145 ◽  
pp. 399-412 ◽  
Author(s):  
Dikai Guan ◽  
W. Mark Rainforth ◽  
Junheng Gao ◽  
Le Ma ◽  
Brad Wynne
Keyword(s):  
Magnesium Alloy ◽  
Shear Bands ◽  
Individual Effect ◽  
Nucleation Sites ◽  
Alloy Part

scholarly journals Suppression of Macroscopic Defects through the Control of Friction between Workpiece and Dies in a Forged Magnesium Alloy Part with Ribs

2009 ◽  
Vol 50 (8) ◽  
pp. 2128-2128
Author(s):  
Akira Takara ◽  
Li-Fu Chian ◽  
Sung Wook Chung ◽  
Hidetoshi Somekawa ◽  
Hiroyuki Watanabe ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Alloy Part

Numerical Simulation of Superplastic Forming of a Magnesium Alloy Part

2007 ◽  
Vol 551-552 ◽  
pp. 263-268
Author(s):  
Quan Lin Jin ◽  
Zhi Peng Zeng ◽  
Yan Shu Zhang
Keyword(s):  
Numerical Simulation ◽  
Magnesium Alloy ◽  
Dynamic Recrystallization ◽  
Grain Refinement ◽  
Superplastic Forming ◽  
Grain Boundary Sliding ◽  
Experimental Results ◽  
Forming Process ◽  
Boundary Sliding ◽  
Alloy Part

A numerical simulation of superplastic backward extrusion of a magnesium alloy part is presented in this paper. In fact, the simulated superplastic forming is not a pure superplastic forming because of the billet with coarse cylindrical grains. The forming may become a pure superplastic forming only after dynamic recrystallization and grain refinement appear and the grain boundary sliding has been the main deformation mechanism. In order to simulate the special forming process, a constitutive relation considering dynamic recrystallization and the multiform deform mechanism and the parameter identification of the constitutive relattion are studied. The program for simulation is able to predict the grain refinement and the transform between different deformation mechanisms. Finally the calculated results on the grain size and dynamic rerystallization are presented. A comparison between the calculated and the experimental results shows there is a good agreement between calculated results and experimental results.

scholarly journals Individual effect of recrystallisation nucleation sites on texture weakening in a magnesium alloy: Part 1- double twins

2017 ◽  
Vol 135 ◽  
pp. 14-24 ◽  
Author(s):  
Dikai Guan ◽  
W. Mark Rainforth ◽  
Junheng Gao ◽  
Joanne Sharp ◽  
Brad Wynne ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Individual Effect ◽  
Nucleation Sites ◽  
Alloy Part
Sign in / Sign up

Export Citation Format

Share Document