Detail publikace

Cyclic plastic behavior and fatigue life of AZ91 alloy in as-cast and ultrafine-grained state

FINTOVÁ, S. KUNZ, L.

Originální název

Cyclic plastic behavior and fatigue life of AZ91 alloy in as-cast and ultrafine-grained state

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

Fatigue properties of magnesium alloy AZ91 in as-cast and in ultrafine-grained state prepared by equal channel angular pressing were investigated. The fatigue strength in the low-cycle fatigue region was found to be substantially improved by the severe plastic deformation, whereas the improvement in the high-cycle fatigue region is negligible. The cyclic plastic response in both states is qualitatively similar; short initial softening is followed by a long cyclic hardening. The observed fatigue behavior was discussed in terms of specific microstructural features of both states and on the basis of cyclic slip localization and fatigue crack initiation.

Klíčová slova

AZ91; ECAP; Bimodal structure; Fatigue; Plastic deformation; Crack initiation.

Autoři

FINTOVÁ, S.; KUNZ, L.

Rok RIV

2014

Vydáno

15. 9. 2014

ISSN

1335-0803

Periodikum

Materiálové inžinierstvo

Ročník

21

Číslo

3

Stát

Slovenská republika

Strany od

109

Strany do

115

Strany počet

7

URL

http://ojs.mateng.sk/index.php/Mateng/article/view/143/196

BibTex

@article{BUT109823,
  author="Stanislava {Fintová} and Ludvík {Kunz}",
  title="Cyclic plastic behavior and fatigue life of AZ91 alloy in as-cast and ultrafine-grained state",
  journal="Materiálové inžinierstvo",
  year="2014",
  volume="21",
  number="3",
  pages="109--115",
  issn="1335-0803",
  url="http://ojs.mateng.sk/index.php/Mateng/article/view/143/196"
}