The role of plastic deformation on the competitive microstructural evolution and mechanical properties of a novel Al–Li–Cu–X alloy

2001 ◽  
Vol 1 (1) ◽  
pp. 1-14 ◽  
Author(s):  
B.M Gable ◽  
A.W Zhu ◽  
A.A Csontos ◽  
E.A Starke
Keyword(s):  
Mechanical Properties ◽  
Plastic Deformation ◽  
Microstructural Evolution

Role of second-phase particles in the microstructural evolution and mechanical properties of extruded Mg-Gd-Y-Ag-Zr alloys

2020 ◽  
Vol 24 ◽  
pp. 100956
Author(s):  
Fan Zhang ◽  
Yafei Wang ◽  
Yunbiao Duan ◽  
Kaijun Wang ◽  
Yutian Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Microstructural Evolution ◽  
Second Phase ◽  
Second Phase Particles ◽  
Zr Alloys

The Role of Texture, Temperature and Strain Rate in the Activity of Deformation Twinning

2005 ◽  
Vol 495-497 ◽  
pp. 1037-1042 ◽  
Author(s):  
Donald W. Brown ◽  
Sean R. Agnew ◽  
S.P. Abeln ◽  
W.R. Blumenthal ◽  
Mark A.M. Bourke ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Plastic Deformation ◽  
Deformation Mode ◽  
Relative Activity ◽  
Deformation Twinning ◽  
Underlying Structure ◽  
Cubic Metals ◽  
Pyramidal Slip ◽  
Crystallographic Symmetry

Plastic deformation in cubic metals is relatively simple due to the high crystallographic symmetry of the underlying structure. Typically, one unique slip mode can provide arbitrary deformation. This is not true in lower symmetry hexagonal metals, where prismatic and basal slip (the usual favored modes) are insufficient to provide arbitrary deformation. Often, either pyramidal slip and/or deformation twinning must be activated to accommodate imposed plastic deformation. The varied difficulty of activating each of these deformation mechanisms results in a highly anisotropic yield surface and subsequent mechanical properties. Further, the relative activity of each deformation mode may be manipulated through control of the initial crystallographic texture, opening new opportunities for the optimization of mechanical properties for a given application.

An Investigation of Mechanical Properties and Microstructural Evolution in an Aluminum Alloy Processed by Severe Plastic Deformation

2014 ◽  
Vol 922 ◽  
pp. 610-615 ◽  
Author(s):  
Shima Sabbaghianrad ◽  
Terence G. Langdon
Keyword(s):  
Mechanical Properties ◽  
Plastic Deformation ◽  
Aluminum Alloy ◽  
Severe Plastic Deformation ◽  
Microstructural Evolution ◽  
Vickers Microhardness ◽  
Microstructural Analysis ◽  
Angular Pressing ◽  
Al 7075 ◽  
7075 Alloy

Processing by a combination of equal-channel angular pressing (ECAP) and high-pressuretorsion (HPT) was performed on disks of an Al-7075 alloy. The alloy was annealed at 753 K, processedby ECAP for totals of 4 passes and then processed by HPT under a pressure of 6.0 GPa up to amaximum of 20 turns. Measurements of Vickers microhardness showed reasonable hardnesshomogeneity after processing through 20 turns. It is demonstrated that the results from mechanicaltesting and microstructural analysis are consistent with the hardness measurements.

Role of graphite on microstructural evolution and mechanical properties of ternary TiAl alloy prepared by arc melting method

2018 ◽  
Vol 156 ◽  
pp. 300-310 ◽  
Author(s):  
Hongze Fang ◽  
Ruirun Chen ◽  
Yong Yang ◽  
Yanqing Su ◽  
Hongsheng Ding ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Microstructural Evolution ◽  
Tial Alloy ◽  
Melting Method ◽  
Arc Melting
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