scholarly journals Threshold stresses for dislocation climb over hard particles: The effect of an attractive interaction

1986 ◽  
Vol 34 (10) ◽  
pp. 1893-1898 ◽  
Author(s):  
E. Arzt ◽  
D.S. Wilkinson
Keyword(s):  
Dislocation Climb ◽  
Attractive Interaction ◽  
Hard Particles

scholarly journals Glassy dynamics of sticky hard spheres beyond the mode-coupling regime

Soft Matter ◽  
2021 ◽  
Author(s):  
Chengjie Luo ◽  
Liesbeth Janssen
Keyword(s):  
Glass Transition ◽  
Simple Model ◽  
Interaction Potential ◽  
Mode Coupling ◽  
Hard Spheres ◽  
Attractive Interaction ◽  
Coupling Theory ◽  
Mode Coupling Theory ◽  
Glassy Dynamics ◽  
Hard Particles

Sticky hard spheres, i.e., hard particles decorated with a short-ranged attractive interaction potential, constitute a relatively simple model with highly non-trivial glassy dynamics. The mode-coupling theory of the glass transition...

scholarly journals Relative relevance of mobility and driving force on edge dislocation climb by the vacancy mechanism

2021 ◽  
Vol 193 ◽  
pp. 110378
Author(s):  
Enrique Martínez ◽  
Alankar Alankar ◽  
Alfredo Caro ◽  
Thomas Jourdan
Keyword(s):  
Edge Dislocation ◽  
Driving Force ◽  
Dislocation Climb ◽  
Vacancy Mechanism

scholarly journals Improving the microstructure and mechanical properties of laser cladded Ni-based alloy coatings by changing their composition: A review

2020 ◽  
Vol 59 (1) ◽  
pp. 340-351
Author(s):  
Lin Yinghua ◽  
Ping Xuelong ◽  
Kuang Jiacai ◽  
Deng Yingjun
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Corrosion Resistance ◽  
Rare Earth ◽  
Composite Coatings ◽  
Single Element ◽  
Properties Of Coatings ◽  
Hard Particles ◽  
Microstructure And Mechanical Properties ◽  
Nickel Based Alloy

AbstractNi-based alloy coatings prepared by laser cladding has high bonding strength, excellent wear resistance and corrosion resistance. The mechanical properties of coatings can be further improved by changing the composition of alloy powders. This paper reviewed the improved microstructure and mechanical properties of Ni-based composite coatings by hard particles, single element and rare earth elements. The problems that need to be solved for the particle-reinforced nickel-based alloy coatings are pointed out. The prospects of the research are also discussed.

Improved constitutive description of single crystal viscoplastic deformation by dislocation climb

2012 ◽  
Vol 340 (4-5) ◽  
pp. 289-295 ◽  
Author(s):  
Ricardo A. Lebensohn ◽  
R.A. Holt ◽  
A. Caro ◽  
A. Alankar ◽  
C.N. Tomé
Keyword(s):  
Single Crystal ◽  
Dislocation Climb ◽  
Viscoplastic Deformation

Tribology and Superhydrophobicity of Laser-Controlled-Melted Alumina Surfaces with Hard Particles

JOM ◽  
2014 ◽  
Vol 66 (6) ◽  
pp. 1068-1079 ◽  
Author(s):  
Bekir Sami Yilbas ◽  
Bharat Bhushan ◽  
B. J. Abdul Aleem ◽  
Zuhair Gaseem
Keyword(s):  
Hard Particles

Void Morphology In NiAl

2000 ◽  
Vol 646 ◽  
Author(s):  
M. Zakaria ◽  
P.R. Munroe
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Surface Energy ◽  
Annealing Temperature ◽  
Void Formation ◽  
Dislocation Climb ◽  
Annealing Temperatures ◽  
Relative Incidence ◽  
Transmission Electron ◽  
Void Shape

ABSTRACTVoid formation in stoichiometric NiAl was studied through controlled heat treatments and transmission electron microscopy. Voids formed at temperatures as low as 400°C, but dissolved during annealing at 900°C. Both cuboidal and rhombic dodecahedral voids were observed, often at the same annealing temperature. At higher annealing temperatures (>800°C) extensive dislocation climb was noted. The relative incidence of void formation and dislocation climb can be related to the mobility of vacancies at each annealing temperature. Further, differences in void shape can be described in terms of their relative surface energy and mode of nucleation.

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