Paper Title:
New Corrosion-Resistant Bactericidal Nitrogen-Containing Steels with Increased Strength
  Abstract

The new high-strength stainless steels alloyed by copper and nitrogen and possessing high resistance to corrosion by active micro-organisms in carbon-oxidizing, heterotrophic and sulfate-regenerating bacteria mediums are developed. The introducing of small addition of nitrogen (about 0.22 %) to the corrosion resistant steel С0.5Cr15Ni5Cu2NMoNbTi results in a decrease of adhesive micro-organisms quantity on a sample surface by 8 times, while increasing of nickel content to 9 % results in their decrease only by 2 times. It is supposed that the effect of nitrogen can be related to formation of biocide substances. High copper (Cu = 2.5-5 %) nitrogen-containing cast steels are in austenitic (non-magnetic) condition. Due to a dendritic segregation, the structure of steel corresponds to a natural composite structure, and it is preserved on heating to high temperatures. After cold deformation with up to 85 % reduction, the steels preserve austenitic structure, and its hardness attains a level close to the hardness level of the martensitic structure. The developed corrosion-resistant antimicrobial steels with the increased hardness can be used as a material for the surgical instrument.

  Info
Periodical
Edited by
Pietro VINCENZINI, John A. JANSEN, Kazuhiko ISHIHARA and Thomas J. WEBSTER
Pages
72-77
DOI
10.4028/www.scientific.net/AST.76.72
Citation
L. M. Kaputkina, V. Prokoshkina, A.G. Svyazhin, "New Corrosion-Resistant Bactericidal Nitrogen-Containing Steels with Increased Strength", Advances in Science and Technology, Vol. 76, pp. 72-77, 2010
Online since
October 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Hyoung Wook Lee, Geun An Lee, Duk Jae Yoon, Seo Gou Choi, Nak Kyu Lee, Hye Jin Lee, Sung Min Bae
Abstract:A micro-alloyed non-heat-treated material does not need post heat treatment processes such as quenching and tempering after the forming...
254
Authors: Kaoru Kawasaki, Katsuya Ujita, Jun Takahashi, Masaaki Sugiyama, Kazuto Kawakami
Abstract:From the point of view of nitriding treatment(570°C), Cu precipitation is also occurred in the steel containing 1.3mass%Cu at this...
852
Authors: Wei Cai, Zao Qi Hu, Hong Fang Liu
Abstract:Studying effects of Ni content (0.6%, 0.8% and 1.0%) on structure and properties of aluminum brass (Cu-22.7Zn-3.0Al) as-cast ingot,...
1347
Authors: Xiao Ting Huang, Gang Yi Cai, Wen Biao Qiu
Chapter 1: Non-Ferrous Metal Material
Abstract:AZ80 magnesium alloys were deformed at different temperature (270°C, 300°Cand 330°C)with different deformation ratio from 10% to 50%. The...
46
Authors: L.H. Paijan, M.N. Berhan, M.S. Adenan, N.F.M. Yusof, E. Haruman
Chapter 4: Materials
Abstract:This paper describes the results of gaseous thermochemical treatment of nitriding duplex stainless steel using tube furnace. The nitriding...
260