Abstract
The use of the double vacuum melting route (conventional second refining
+ vacuum arc refining, CSR+VAR) and the electroslag remelting route
(vacuum induction melting + electroslag remelting, VIM+ESR)) has been
investigated for the SAE52100 (100Cr6) bearing steel. The tensile
properties, impact toughness, hardness and RCF life of the CSR+VAR steel
and the steel prepared using the VIM+ESR route are similar. The number
and size of TiN inclusions in the VIM+ESR steel are higher and larger
than those in the CSR+VAR steel, providing an explanation for the
observation of better fatigue properties for the CSR+VAR steel. Two
major types of inclusions, magnesium aluminates/Al2O3-CaO-CaS and TiN,
are located in different areas in a map of stress intensity factor
versus rotatory bending fatigue cycles (NRBF). The
negative impact of TiN inclusions on fatigue properties are greater than
those of magnesium aluminates/Al2O3-CaO-CaS inclusions.
| Original language | English |
|---|---|
| Article number | 012032 |
| Journal | IOP Conference Series: Materials Science and Engineering |
| Volume | 1249 |
| Issue number | 1 |
| Number of pages | 7 |
| ISSN | 1757-8981 |
| DOIs | |
| Publication status | Published - 2022 |
| Event | 42nd Risø International Symposium on Materials Science - Risø, Denmark Duration: 5 Sept 2022 → 9 Sept 2022 https://www.conferencemanager.dk/42ndsymposium/program |
Conference
| Conference | 42nd Risø International Symposium on Materials Science |
|---|---|
| Country/Territory | Denmark |
| City | Risø |
| Period | 05/09/2022 → 09/09/2022 |
| Internet address |