| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Advances in Ferrous Metallurgy
|
| Presentation Title |
Development of Fine Grained Steel for Cold Heading Application |
| Author(s) |
Deepan N, Manjini Sambandam |
| On-Site Speaker (Planned) |
Deepan N |
| Abstract Scope |
Niobium has been a crucial element in the recent progress of the world of steels. This project covers the aspects of increment in strength along with the upsetability in cold heading boron steels. Niobium added as micro alloying element at various levels between 0.01 and 0.02% in 0.20-0.30% carbon steel and studied for the grain refinement at cast stage, intermediate rolling stage and rolled wire rod of sizes between 5.5mm and 20mm diameter. The grain refinement in the rolled product also achieved by using higher input section billets up to 250 mm2 which lowers the input austenitic grain size before rolling. Addition of Niobium to the higher input billet section results in refining the grains of the rolled product from 25-35μm to 10μm and even lesser, with the increase in upsetability up to 80% compression and increase in the ratio of yield to tensile strength significantly |