Effects of Nb and V on the Microstructure and Properties of Rolled Non-Quenched and Tempered Steels
| Periodical | Advanced Materials Research (Volume 509) |
|---|---|
| Main Theme | Latest Development of Applied Materials Technology |
| Edited by | S.T. Tu, G.Z. Wang and J.M. Gong |
| Pages | 75-81 |
| DOI | 10.4028/www.scientific.net/AMR.509.75 |
| Citation | Ming Tu Ma et al., 2012, Advanced Materials Research, 509, 75 |
| Online since | April, 2012 |
| Authors | Ming Tu Ma, Hong Ya Yang, Hua Sheng Mei, Hong Zhou Lu |
| Keywords | Digital Impact, Mechanical Property, Micro-Alloyed Steel, Nb-V Comprehensive Alloying |
| Price | US$ 28,- |
The property and microstructure of rolled non-quenched and tempered steels of Nb-V comprehensive micro alloying have been investigated .The mechanical properties and the load –displacement curves were measured respectively by using electron tension test machine and digital-impact test machine . The microstructure and fracture surface of impact samples were observed with SEM .The results show that micro-alloying Nb and V non-quenched and tempered steel behaves higher tension strength and toughness than that of only V micro-alloying one under the condition of about same plasticity. Improvement of the properties is related with that Nb can effectively make fine pearlite group and inter-lamella spacing at the impact fracture pearlite flakes. Corresponding relationship between various domain of fracture morphology and characteristics points at the curve of digital impact has been discussed.