Effect of Final Annealing Temperature on Antibacterial Precipitate of Copper-Bearing Ferritic Stainless Steel
| Periodical | Materials Science Forum (Volumes 620 - 622) |
|---|---|
| Main Theme | Eco-Materials Processing and Design X |
| Edited by | Hyungsun Kim, JienFeng Yang, Tohru Sekino and Soo Wohn Lee |
| Pages | 213-216 |
| DOI | 10.4028/www.scientific.net/MSF.620-622.213 |
| Citation | De Ning Zou et al., 2009, Materials Science Forum, 620-622, 213 |
| Online since | April, 2009 |
| Authors | De Ning Zou, Yan Zhang, Ying Han, Wei Zhang |
| Keywords | Antibacterial Precipitate Phase, Ferritic Stainless Steel (FSS), Final Annealing Temperature |
| Price | US$ 28,- |
In order to keep the steel with outstanding antibacterial characteristics, the relationship between the anneal temperatures and the amounts of the precipitated Cu-rich phase was investigated in this work. The SEM analysis of annealing specimens indicated that the microstructure changed with the increase of annealing temperature. At 900C, the martensite phase appeared along the crystal boundary, but the amount of Cu-rich phase was almost no change. At 920C, the sizes of the Cu-rich precipitates minished and the amounts of the precipitates reduced gradually. At 940C, there was only martensite phase existing in the ferrite matrix. Therefore, the optimal final annealing temperature range was chosen from 880C to 900C to ensure attaining excellent antibacterial properties and favorable mechanical characteristic of copper-bearing stainless steel.