Microstructure and Properties of Ag-1.33%Mg-0.54%Ni Alloy after Severe Plastic Deformation and Internal Oxidation

2013 ◽  
Vol 42 (1) ◽  
pp. 32-36
Author(s):  
Kong Jianwen ◽  
Shi Qingnan ◽  
Wang Jianhua ◽  
Yi Jianhong ◽  
Xie Hongchao ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Severe Plastic Deformation ◽  
Internal Oxidation ◽  
Microstructure And Properties ◽  
Ni Alloy

Effect of Severe Plastic Deformation on Microstructure and Properties of Polycrystalline Aluminium Al99.5

2014 ◽  
Vol 59 (1) ◽  
pp. 313-316 ◽  
Author(s):  
B. Leszczyńska-Madej ◽  
P. Pałka ◽  
M. Richert
Keyword(s):  
Plastic Deformation ◽  
Tensile Strength ◽  
Severe Plastic Deformation ◽  
Equal Channel Angular Pressing ◽  
Shear Bands ◽  
Extrusion Direction ◽  
Hydrostatic Extrusion ◽  
Microstructure And Properties ◽  
Angular Pressing ◽  
Aluminium Level

Abstract Polycrystalline aluminium Al99.5 was deformed through the combination of equal-channel angular pressing (ECAP) by B route (4, 8 and 16 passes) and then by the hydrostatic extrusion (HE) using the cumulative way of deformation, just to the achieving the final wire diameter d = 3 mm. The microstructure of samples was investigated by means light microscopy (LM). Additionally the microhardness measurement and the tensile test were performed to determine the level of aluminium hardening. The texture was determined by using the Brucker Advance D8 equipment. The aim of the research was to determine the influence of severe plastic deformation exerted in the process of equal-channel angular pressing (ECAP) and hydrostatic extrusion (HE) on the microstructure and properties of polycrystalline aluminium Al99.5. The microstructure observations both after the HE process and the combination of ECAP + HE revealed the elongated to the extrusion direction grains and numerous bands and shear bands. The bands and shear bands most clearly revealed at the perpendicular section. The performed investigations showed that with the increase of the deformation the aluminium level hardening increase. The highest properties of tensile strength - UTS = 218 MPa and microhardness level HV0.1 = 46 were obtained after 8 ECAP + HE.

scholarly journals X-ray Investigation of Microstructure and Properties Evolution on Superalloy Inconel-718 derivative during Rapid Joule Heating and Severe Plastic Deformation Concurrently

2018 ◽  
Vol 6 (9) ◽  
pp. 12-22 ◽  
Author(s):  
Lembit Kommel
Keyword(s):  
Plastic Deformation ◽  
Severe Plastic Deformation ◽  
Joule Heating ◽  
Inconel 718 ◽  
Energy Dispersive Spectrometry ◽  
Profile Analysis ◽  
Line Profile Analysis ◽  
X Ray Diffraction ◽  
X Ray ◽  
Microstructure And Properties

The purpose of this study is to X-ray line-profile analysis of the effect of rapid Joule heating and severe plastic deformation concurrently on microstructure and properties evolution in polycrystalline austenitic Fe-balanced superalloy EP718E, which is Inconel 718 derivative. The microstructure of superalloy at different stages of processing was examined by X-ray diffraction, by scanning electron microscopy, and by energy dispersive spectrometry techniques. The mechanical properties of evolution were studied by means of tension and high cycle fatigue testings. The results of X-ray study show that the intensity, raw areas, and net areas were a step–by–step changed according to processing routines. Is shown that under shear stress the fcc-crystallites were deformed and the peaks parameters by 2-Theta scale changed partly.

scholarly journals X-ray Investigation of Microstructure and Properties Evolution on Superalloy Inconel-718 derivative during Rapid Joule Heating and Severe Plastic Deformation Concurrently

2018 ◽  
Vol 6 (9) ◽  
pp. 12-22
Author(s):  
Lembit Kommel ◽  
R. Traksmaa ◽  
V. Mikli
Keyword(s):  
Plastic Deformation ◽  
Severe Plastic Deformation ◽  
Joule Heating ◽  
Inconel 718 ◽  
Energy Dispersive Spectrometry ◽  
Profile Analysis ◽  
Line Profile Analysis ◽  
X Ray Diffraction ◽  
X Ray ◽  
Microstructure And Properties

The purpose of this study is to X-ray line-profile analysis of the effect of rapid Joule heating and severe plastic deformation concurrently on microstructure and properties evolution in polycrystalline austenitic Fe-balanced superalloy EP718E, which is Inconel 718 derivative. The microstructure of superalloy at different stages of processing was examined by X-ray diffraction, by scanning electron microscopy, and by energy dispersive spectrometry techniques. The mechanical properties of evolution were studied by means of tension and high cycle fatigue testings. The results of X-ray study show that the intensity, raw areas, and net areas were a step–by–step changed according to processing routines. Is shown that under shear stress the fcc-crystallites were deformed and the peaks parameters by 2-Theta scale changed partly.

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