Profiles of persistent slip markings and internal structure of underlying persistent slip bands

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F17%3A00480348" target="_blank" >RIV/68081723:_____/17:00480348 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1111/ffe.12567" target="_blank" >http://dx.doi.org/10.1111/ffe.12567</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/ffe.12567" target="_blank" >10.1111/ffe.12567</a>

Result language

angličtina

Original language name

Profiles of persistent slip markings and internal structure of underlying persistent slip bands

Original language description

Focused ion beam sections and lamellae for transmission electron microscopy were prepared from fatigued specimens of polycrystalline copper and austenitic Sanicro 25 steel. The profiles of persistent slip markings developed on the surface were observed and documented simultaneously with the underlying dislocation structure. In copper fatigued at room temperature and close to liquid nitrogen temperature, persistent slip markings consisting of pronounced extrusions and parallel intrusions appeared at locations where persistent slip bands having the ladder-like dislocation structure egress on the surface. Stage I cracks initiated from the tip of the intrusions. In Sanicro 25 steel, more planar character of the dislocation structure led to thin extrusions and intrusions and several stage I cracks running parallel to the primary slip plane. Exceptionally, ladder-like structure and generally alternating dislocation-rich and dislocation-poor volumes were observed in the PSBs. Dislocations bands of secondary slip systems in the matrix disappeared on intersections with PSBs. Experimental findings were compared with predictions of recent physically based models of fatigue crack initiation.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20306 - Audio engineering, reliability analysis

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Fatigue and Fracture of Engineering Materials and Structures

ISSN

8756-758X

e-ISSN

—

Volume of the periodical

40

Issue of the periodical within the volume

7

Country of publishing house

US - UNITED STATES

Number of pages

16

Pages from-to

1101-1116

UT code for WoS article

000402791200007

EID of the result in the Scopus database

2-s2.0-85010607480