scholarly journals Extended ductility due to kink band formation and growth under tensile loading in single crystals of Mg-Zn-Y alloy with 18R-LPSO structure

2019 ◽  
Vol 806 ◽  
pp. 1384-1393 ◽  
Author(s):  
Kosuke Takagi ◽  
Tsuyoshi Mayama ◽  
Yoji Mine ◽  
Yu Lung Chiu ◽  
Kazuki Takashima
Keyword(s):  
Single Crystals ◽  
Tensile Loading ◽  
Kink Band ◽  
Band Formation ◽  
Lpso Structure

scholarly journals Kink Band Formation and Its Effect on Recrystallization in Ordered and Disordered Ni3Fe Single Crystals

2007 ◽  
Vol 48 (4) ◽  
pp. 759-763 ◽  
Author(s):  
Tatsuya Okada ◽  
Hiroyuki Y. Yasuda ◽  
Tetsuya Watanabe ◽  
Fukuji Inoko ◽  
Yukichi Umakoshi
Keyword(s):  
Single Crystals ◽  
Kink Band ◽  
Band Formation

Mechanism of kink band formation in zinc single crystals

2021 ◽  
Vol 112 (1) ◽  
pp. 63-67
Author(s):  
Krzysztof Pieła ◽  
Andrzej Korbel
Keyword(s):  
Single Crystals ◽  
Basal Plane ◽  
Kink Band ◽  
Lattice Rotation ◽  
Lattice Instability ◽  
Band Formation

Abstract This paper is focused on the mechanism of kink band formation. In the general case, lattice rotation in a kink band may be realized by two sequentially activated simple elastic shears in nearly perpendicular planes. In the case of zinc crystals, compressed along (0001) plane at the temperature 523 K, the first shear may result from stress-induced temporary lattice instability (movement of atoms towards metastable positions in tetrahedric holes), while the second shear occurring along a temporary ‘new-positioned’ basal plane immediately ‘rebuilds’ the stable lattice.

Micromechanics of kink band formation in open-hole fibre composites under compressive loading

2018 ◽  
Vol 149 ◽  
pp. 66-73 ◽  
Author(s):  
Vedad Tojaga ◽  
Simon P.H. Skovsgaard ◽  
Henrik Myhre Jensen
Keyword(s):  
Compressive Loading ◽  
Kink Band ◽  
Band Formation ◽  
Fibre Composites ◽  
Open Hole

Dynamic Behavior of Fiber Reinforced Composites Under Multiaxial Compression

1999 ◽  
Author(s):  
Kenji Oguni ◽  
G. Ravichandran
Keyword(s):  
Failure Mode ◽  
Kink Band ◽  
Fiber Reinforced Composites ◽  
Fiber Direction ◽  
Strain Rates ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Band Formation ◽  
Multiaxial Compression ◽  
Axial Splitting

Abstract Results from an experimental investigation on the mechanical behavior of a unidirectional reinforced polymer composite with 50% volume fraction E-glass/vinylester under uniaxial and proportional multiaxial compression are presented. Specimens are loaded in the fiber direction using a servo-hydraulic material testing system for low strain rates and a Kolsky (split Hopkinson) pressure bar for high strain rates, up to 3000 s−1. The results indicate that the compressive strength of the composite increases with increasing levels of confinement and increasing strain rates. Post-test optical and scanning electron microscopy is used to identify the failure modes. The failure mode that is observed in unconfined specimen is axial splitting followed by fiber kink band formation. At high levels of confinement, the failure mode transitions from axial splitting to kink band formation and fiber failure. Also, a new energy based analytic model for studying axial splitting phenomenon in unidirectional fiber-reinforced composites is presented.

The mechanism of work-hardening and slip-band formation

1957 ◽  
Vol 242 (1229) ◽  
pp. 147-159 ◽  
Keyword(s):  
Single Crystals ◽  
Slip Band ◽  
Work Hardening ◽  
Stage I ◽  
Polycrystalline Materials ◽  
Temperature Dependent ◽  
Band Formation ◽  
Slip Bands ◽  
Three Stages ◽  
The Difference

A summary is given of some present ideas on the mechanism of work-hardening of single crystals and polycrystalline materials. In particular, the difference is stressed between the three stages of hardening: stage I, or easy glide; stage II, the region of rapid hardening accompanied by short slip lines; and stage III, the region of slow or parabolic hardening which is temperature-dependent and in which long slip bands are formed.

Sign in / Sign up

Export Citation Format

Share Document