scholarly journals Grain size effect on yield strength of titanium alloy implanted with aluminum ions

2016 ◽  
Author(s):  
Natalya Popova ◽  
Elena Nikonenko ◽  
Ivan Yurev ◽  
Mark Kalashnikov ◽  
Irina Kurzina
Keyword(s):  
Grain Size ◽  
Titanium Alloy ◽  
Yield Strength ◽  
Size Effect ◽  
Grain Size Effect ◽  
Aluminum Ions ◽  
Effect On Yield

Grain Size Effect on the Type VT1-0 Alloy Modified by Aluminum Ion Implantation

2015 ◽  
Vol 670 ◽  
pp. 144-151
Author(s):  
Irina Kurzina ◽  
Alisa Nikonenko ◽  
Natalja Popova ◽  
Elena L. Nikonenko ◽  
Mark Kalashnikov
Keyword(s):  
Mechanical Properties ◽  
Grain Size ◽  
Ion Implantation ◽  
Size Effect ◽  
Phase State ◽  
Grain Size Effect ◽  
Significant Modification ◽  
Aluminum Ion ◽  
Grain Sizes ◽  
Aluminum Ions

The paper presents results of investigations of α-Ti microhardness modified by aluminum ions having diverse grain sizes, namely: 0.3 μm, 1.5 μm, and 17 μm. These investigations show that the decrease of the grain size and the additional ion implantation result in the significant modification of the structural and phase state of the alloy and its mechanical properties.

Grain Size Effect on Mechanical Properties of Titanium Alloy

2014 ◽  
Vol 626 ◽  
pp. 548-552 ◽  
Author(s):  
Cho-Pei Jiang ◽  
Zong Han Huang
Keyword(s):  
Mechanical Properties ◽  
Grain Size ◽  
Titanium Alloy ◽  
Size Effect ◽  
Annealing Temperature ◽  
Grain Size Effect ◽  
Β Phase ◽  
Commercially Pure ◽  
Α Phase ◽  
Pure Grade

The aim of this study is to investigate the effect of grain size on mechanical properties of commercially pure grade 2 (CP2) titanium bar with a diameter of 5 mm. The results reveal that the microstructure of β-phase forms when the annealing temperature exceeds 800oC. The formation of β-phase leads to reduce the ductility but increase hardness. The strength coefficient, yielding stress and hardness decrease with increasing of grain size when the microstructure of specimen is the α-phase.

scholarly journals Grain Size Effect on the Mechanical Behavior of Metastable Fe-23Cr-8.5Ni Alloy

Metals ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 734 ◽  
Author(s):  
Lin Xie ◽  
Chunpeng Wang ◽  
Yuhui Wang ◽  
Guilin Wu ◽  
Xiaoxu Huang
Keyword(s):  
Grain Size ◽  
Yield Strength ◽  
Size Effect ◽  
Mechanical Behavior ◽  
Tensile Elongation ◽  
Model Material ◽  
Coarse Grained ◽  
High Yield ◽  
Grain Size Effect ◽  
Structural Refinement

An Fe-23Cr-8.5Ni alloy was used as a model material to study the grain size effect on the mechanical behavior of metastable duplex metal. Alloy samples with different grain sizes ranging from 0.1 to 2 μm were prepared by cold-rolling and annealing. A structural refinement to about 0.1 μm results in a high yield strength but very limited ductility. A significant improvement of ductility occurred at the grain size of about 0.4 μm. A further increase in grain size results in a decreased strength and a slightly improved ductility. The alloy with a grain size of about 0.4 μm exhibits an excellent combination of strength and ductility, where the yield strength and tensile elongation are increased up to 738 MPa and 29% as compared to 320 MPa and 33% of a coarse-grained (about 2 μm) sample, respectively. The origin of the excellent mechanical properties was attributed to the unique deformation characteristics associated with the transformation induced plasticity and the development of back stress.

Landau-Ginzburg-Devonshire Theory of the Grain Size Effect on the Ferroelectricity in BaTiO 3 Nanoceramics

2020 ◽  
Author(s):  
Kum-Ok Jang ◽  
Il-Hwan Kim ◽  
Il-Hun Kim ◽  
Kye-Ryong Sin ◽  
Chol-Jin Kim
Keyword(s):  
Grain Size ◽  
Size Effect ◽  
Grain Size Effect

scholarly journals Finite element analysis of the grain size effect on diffusion in polycrystalline materials

2014 ◽  
Vol 95 ◽  
pp. 187-191 ◽  
Author(s):  
V. Lacaille ◽  
C. Morel ◽  
E. Feulvarch ◽  
G. Kermouche ◽  
J.-M. Bergheau
Keyword(s):  
Finite Element Analysis ◽  
Grain Size ◽  
Finite Element ◽  
Size Effect ◽  
Polycrystalline Materials ◽  
Grain Size Effect ◽  
Element Analysis

scholarly journals Grain size effect on radiation tolerance of nanocrystalline Mo

2016 ◽  
Vol 123 ◽  
pp. 90-94 ◽  
Author(s):  
G.M. Cheng ◽  
W.Z. Xu ◽  
Y.Q. Wang ◽  
A. Misra ◽  
Y.T. Zhu
Keyword(s):  
Grain Size ◽  
Size Effect ◽  
Radiation Tolerance ◽  
Grain Size Effect
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