Effect of post-GBE strain-sensitisation on corrosion resistance of grain boundary engineered 304 austenitic stainless steel

2013 ◽  
Vol 93 (10-12) ◽  
pp. 1443-1453 ◽  
Author(s):  
Gouki Yamada ◽  
Hiroyuki Kokawa ◽  
Yu Yasuda ◽  
Shun Tokita ◽  
Takashi Yokoyama ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Austenitic Stainless Steel ◽  
Grain Boundary ◽  
304 Austenitic Stainless Steel

Grain Boundary Nature and Localized Corrosion in 304 Austenitic Stainless Steel

2005 ◽  
Vol 495-497 ◽  
pp. 453-458 ◽  
Author(s):  
I. Samajdar ◽  
P. Ahmedavadi ◽  
D.N. Wasnik ◽  
Vivekanand Kain ◽  
Bert Verlinden ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Austenitic Stainless Steel ◽  
Grain Boundary ◽  
Effective Means ◽  
High Energy ◽  
Localized Corrosion ◽  
304 Austenitic Stainless Steel ◽  
Degree Of Sensitization ◽  
Broad Objective

The present study had one broad objective – to systematically characterize effects of overall grain boundary nature on localized corrosion, intergranular corrosion (IGC) and stress corrosion cracking (IGSCC), of type 304 (UNS S 30400) austenitic stainless steel. Various combinations of cold rolling and solution annealing, were applied to alter relative the relative concentrations of ‘special’ or low CSL boundaries and to relate them with the local corrosion resistance, IGC and IGSCC, after respective sensitization treatments. It has been shown that both extreme high and low concentration of random (or high energy) boundaries can provide an effective means of control for localized corrosion, degree of sensitization (DOS), IGC and IGSCC, - the improvement in localized corrosion resistance at extreme grain boundary randomization being more effective.

Arrest of weld-decay in 304 austenitic stainless steel by twin-induced grain boundary engineering

2007 ◽  
Vol 55 (16) ◽  
pp. 5401-5407 ◽  
Author(s):  
H. Kokawa ◽  
M. Shimada ◽  
M. Michiuchi ◽  
Z.J. Wang ◽  
Y.S. Sato
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Grain Boundary ◽  
Grain Boundary Engineering ◽  
304 Austenitic Stainless Steel

scholarly journals Effect of the roughness produced by plasma nitrocarburizing on corrosion resistance of AISI 304 austenitic stainless steel

2019 ◽  
Vol 8 (2) ◽  
pp. 1897-1906 ◽  
Author(s):  
Paula Cisquini ◽  
Simão Vervloet Ramos ◽  
Pedro Rupf Pereira Viana ◽  
Vanessa de Freitas Cunha Lins ◽  
Adonias Ribeiro Franco ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Austenitic Stainless Steel ◽  
Aisi 304 ◽  
304 Austenitic Stainless Steel ◽  
Plasma Nitrocarburizing

The Effect of Wear and Corrosion Resistance of Austenitic Stainless Steel on Plasma Carburizing

2014 ◽  
Vol 941-944 ◽  
pp. 1357-1361 ◽  
Author(s):  
Ting Zhang ◽  
Xing Sheng Tong
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Austenitic Stainless Steel ◽  
Low Temperature ◽  
White Layer ◽  
Temperature Plasma ◽  
Hardening Treatment ◽  
304 Austenitic Stainless Steel ◽  
Wear And Corrosion Resistance ◽  
Plasma Carburizing

In this study, low temperature plasma carburizing technology as one of the surface hardening techniques has been applied to improve the mechanical properties of 304 austenitic stainless steel. Several low temperature process parameters were studied to focus on the structure and properties of the carburized layer. The results shows that carburizing at 450°C, C3H8: H2 = 1: 40, carburizing time 10h could get a better white layer, a better wear resistance and a reasonable corrosion resistance, which proved to be the optimal hardening treatment.

Grain Boundary Engineering for Intergranular Corrosion Resistant Austenitic Stainless Steel

2004 ◽  
Vol 261-263 ◽  
pp. 1005-1010 ◽  
Author(s):  
Hiroyuki Kokawa ◽  
Masahiko Shimada ◽  
Zhan Jie Wang ◽  
Yutaka S. Sato ◽  
M. Michiuchi
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Sulfuric Acid ◽  
Austenitic Stainless Steel ◽  
Grain Boundary ◽  
Thermomechanical Treatment ◽  
Intergranular Corrosion ◽  
Ferric Sulfate ◽  
Grain Boundary Engineering ◽  
Intergranular Corrosion Resistance

Optimum parameters in the thermomechanical treatment during grain boundary engineering (GBE) were investigated for improvement of intergranular corrosion resistance of type 304 austenitic stainless steel. The grain boundary character distribution (GBCD) was examined by orientation imaging microscopy (OIM). The intergranular corrosion resistance was evaluated by electrochemical potentiokinetic reactivation (EPR) and ferric sulfate-sulfuric acid tests. The sensitivity to intergranular corrosion was reduced by the thermomechanical treatment and indicated a minimum at a small roll-reduction. The frequency of coincidence-site-lattice (CSL) boundaries indicated a maximum at the small pre-strain. The ferric sulfate-sulfuric acid test showed much smaller corrosion rate in the thermomechanical-treated specimen than in the base material for long time sensitization. The optimum thermomechanical treatment introduced a high frequency of CSL boundaries and the clear discontinuity of corrosive random boundary network in the material, and resulted in the high intergranular corrosion resistance arresting the propagation of intergranular corrosion from the surface.

Sign in / Sign up

Export Citation Format

Share Document