- Tytuł:
-
Microstructural Characterization Of Laser Heat Treated AISI 4140 Steel With Improved Fatigue Behavior
Charakterystyka mikrostruktury stali AISI 4140 po laserowej obróbce cieplnej i z poprawioną odpornością na zmęczenie - Autorzy:
-
Oh, M. C.
Yeom, H.
Jeon, Y.
Ahn, B. - Powiązania:
- https://bibliotekanauki.pl/articles/355558.pdf
- Data publikacji:
- 2015
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
laser heat treatment
vibration peening
fatigue properties
ultrasonic fatigue test
alloy steel
laserowa obróbka cieplna
wibracje
własności zmęczeniowe
badanie ultradźwiękowe
stal stopowa - Opis:
- The influence of surface heat treatment using laser radiation on the fatigue strength and corresponding microstructural evolution of AISI 4140 alloy steel was investigated in this research. The AISI 4140 alloy steel was radiated by a diode laser to give surface temperatures in the range between 600 and 800°C, and subsequently underwent vibration peening. The fatigue behavior of surface-treated specimens was examined using a giga-cycle ultrasonic fatigue test, and it was compared with that of non-treated and only-peened specimens. Fatigue fractured surfaces and microstructural evolution with respect to the laser treatment temperatures were investigated using an optical microscope. Hardness distribution was measured using Vickers micro-hardness. Higher laser temperature resulted in higher fatigue strength, attributed to the phase transformation.
- Źródło:
-
Archives of Metallurgy and Materials; 2015, 60, 2B; 1331-1334
1733-3490 - Pojawia się w:
- Archives of Metallurgy and Materials
- Dostawca treści:
- Biblioteka Nauki
Artykuł