Skoči na glavni sadržaj

Prethodno priopćenje

Influence of the Cycling Loading Method on the Fatigue Life of Surface-Hardened Steel Sheets

K. Kovalová
I. Mamuzić
M. Buršák


Puni tekst: engleski pdf 161 Kb

str. 335-338

preuzimanja: 346

citiraj


Sažetak

The paper analyses the influence of blasting under the following conditions: the size of blasting particles of 0,9 mm, the impact angle of 75° and the pressure of 0,5 MPa on the fatigue properties of blasted sheets made of RSt 37-2 grade. Blasting, as one of the ways of the surface hardening and the surface preparation before surface finish, results in the hardening and the increase in roughness of sheet. The above-mentioned facts influence the fatigue process in the dependence on the cycling loading method. During tension fatigue tests with the tension-zero cycle, the fatigue limit of as-blasted sheet decreased and during symmetrical bending fatigue tests its fatigue limit increased. The paper analyses the causes of the measured results.

Ključne riječi

Hrčak ID:

128118

URI

https://hrcak.srce.hr/128118

Datum izdavanja:

1.10.2004.

Podaci na drugim jezicima: hrvatski

Posjeta: 869 *