The Effect of Prior Cold Work on the Degree of Sensitization in Type 304 Stainless Steel

Pednekar, S. P.; Smialowska, S.

doi:10.5006/0010-9312-36.10.565

Cited by 60 publications

(24 citation statements)

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“…Welding can introduce strain as high as 20% in the heat-affected zone (HAZ) of stainless steel (Shah et al, 1990). The deformation prior to sensitization reported to decrease temperature for carbide nucleation and accelerate kinetic of carbide precipitation at normal sensitization temperature as compared to undeformed stainless steels (Parvathavarthini et al, 1989(Parvathavarthini et al, , 1994Shah et al, 1990;Kain et al, 2004Kain et al, , 2005Advani et al, 1991;Singh et al, 2003;Beltran et al, 1997;Fullman, 1980;Pednekar and Smialowska, 1980;Bruemmer et al, 1988). The deformation-induced martensite (DIM) and dislocations/defects in the stainless steels were responsible for accelerated sensitization (Parvathavarthini et al, 1989(Parvathavarthini et al, , 1994Shah et al, 1990;Kain et al, 2004Kain et al, , 2005Advani et al, 1991;Singh et al, 2003).…”

Section: Introductionmentioning

confidence: 97%

Influence of cold rolling on sensitization and intergranular stress corrosion cracking of AISI 304 aged at 500°C

Singh

2008

Journal of Materials Processing Technology

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Section: Introductionmentioning

confidence: 97%

Influence of cold rolling on sensitization and intergranular stress corrosion cracking of AISI 304 aged at 500°C

Singh

2008

Journal of Materials Processing Technology

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“…Though it is well observed that the increase in prior deformation accelerates the sensitization process [7,20,[22][23][24][25][26], there are also reports [12,27] in support of the non monotonous behaviour between cold work and sensitization. In fact, besides the increase in the rate of sensitization, higher deformation also enhances the diffusion of chromium which in turn increases the desensitization process.…”

Section: Discussionmentioning

confidence: 99%

Understanding the effect of uniaxial tensile strain on the early stages of sensitization in AISI 304 austenitic stainless steel

Chowdhury

Guchhait

Mitra

et al. 2015

Materials Chemistry and Physics

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Abstract:In the present study, an attempt has been made to understand the effect of different competing mechanisms controlling the overall degree of sensitization (DOS) of deformed austenitic stainless steel at the early stage of sensitization. The Double Loop Electrochemical Potentiokinetic Reactivation (DL-EPR) studies were performed to characterize the Degree of Sensitization (DOS) as functions of pre-defined strain and sensitization temperature. X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) were used to explain the phenomena qualitatively. A non monotonous behaviour in the variation of DOS has been observed with deformation and sensitization temperature. The presence of Deformation Induced Martensites (DIM) and their transformation into tempered martensites ( + Fe 3 C) at higher temperatures was found to play major roles in controlling the overall sensitization and desensitization processes.

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“…[7] In spite of several studies performed on the prior-deformation effect on sensitization and IGC, a universally accepted conclusion is yet to be made. The reasons of such conflicting results could be due to the consideration of limited strains (either tensile or compressive), [4,6,8,9] temperatures, [8,10,11] or times [7,10,12] as variables in such studies. In this study, we use a wide range of the aforementioned variables.…”

Section: Introductionmentioning

confidence: 86%

The effects of cold working on sensitization and intergranular corrosion behavior of AISI 304 stainless steel

Singh

Chattoraj

Kumar

et al. 2003

Metall Mater Trans A

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The effects of prior cold rolling of up to an 80 pct reduction in thickness on the sensitizationdesensitization behavior of Type AISI 304 stainless steel and its susceptibility to intergranular corrosion have been studied by electrochemical potentiokinetic reactivation (EPR) and Strauss-test methods.The results indicate that the prior deformation accelerated the sensitization as compared to the undeformed stainless steel. The deformed Type 304 stainless steel experienced desensitization at higher temperatures and times, and it was found to be enhanced by increased cold deformation. This could be attributed to the increased long-range chromium diffusion, possibly brought on by increasing pipe diffusion and vacancies. The role of the deformation-induced martensite (DIM) and texture, introduced by uniaxial cold rolling, on the sensitization-desensitization kinetics has also been discussed. This study could not reveal any systematic relationship between texture and the degree of sensitization (DOS) obtained. The effect of DIM on DOS seems to be pronounced at 500°C when the steel retained significant amounts of DIM; however, the retained DIM is insignificant at higher sensitization times and temperatures.

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The Effect of Prior Cold Work on the Degree of Sensitization in Type 304 Stainless Steel

Cited by 60 publications

References 0 publications

Influence of cold rolling on sensitization and intergranular stress corrosion cracking of AISI 304 aged at 500°C

Influence of cold rolling on sensitization and intergranular stress corrosion cracking of AISI 304 aged at 500°C

Understanding the effect of uniaxial tensile strain on the early stages of sensitization in AISI 304 austenitic stainless steel

The effects of cold working on sensitization and intergranular corrosion behavior of AISI 304 stainless steel

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