The corrosion behavior of selected stainless steels in soil environments

Gerhold, W F; Escalante, E; Sanderson, B T

doi:10.6028/nbs.ir.81-2228

Cited by 19 publications

(12 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results of underground corrosion tests performed by Gerhold, et al (1981) for the National Bureau of Standards (NBS), now the National Institute for Standards Testing (NIST), are shown in Table 5-6. The Gerhold measurements were from exposure to Sagemoor Sandy Loam soil located at the Yakama Indian Reservation, Toppenish, Washington.…”

Section: Comparison With Other Sitesmentioning

confidence: 99%

Long Term Corrosion/Degradation Test Six Year Results

Flitton¹,

Bishop²,

Delwiche³

et al. 2004

View full text Add to dashboard Cite

The Subsurface Disposal Area (SDA) of the Radioactive Waste Management Complex (RWMC) located at the Idaho National Engineering and Environmental Laboratory (INEEL) contains neutronactivated metals from non-fuel, nuclear reactor core components. The Long-Term Corrosion/Degradation (LTCD) Test is designed to obtain site-specific corrosion rates to support efforts to more accurately estimate the transfer of activated elements to the environment. The test is using two proven, industry-standard methods-direct corrosion testing using metal coupons, and monitored corrosion testing using electrical/resistance probes-to determine corrosion rates for various metal alloys generally representing the metals of interest buried at the SDA, including Type 304L stainless steel, Type 316L stainless steel, Inconel 718, Beryllium S200F, Aluminum 6061, Zircaloy-4, low-carbon steel, and Ferralium 255. In the direct testing, metal coupons are retrieved for corrosion evaluation after having been buried in SDA backfill soil and exposed to natural SDA environmental conditions for times ranging from one year to as many as 32 years, depending on research needs and funding availability. In the monitored testing, electrical/resistance probes buried in SDA backfill soil will provide corrosion data for the duration of the test or until the probes fail.This report provides an update describing the current status of the test and documents results to date. Data from the one-year and threeyear results are also included, for comparison and evaluation of trends.In the 6-year results, most metals being tested showed extremely low measurable rates of general corrosion. For Type 304L stainless steel, Type 316L stainless steel, Inconel 718, and Ferralium 255, corrosion rates fell in the range of "no reportable" to 0.0002 mils per year (MPY). Corrosion rates for Zircaloy-4 ranged from no measurable corrosion to 0.0001 MPY. These rates are two orders of magnitude lower than those specified in the performance assessment for the SDA.The corrosion on the carbon steel, beryllium, and aluminum were more evident with a clear difference in corrosion performance between the 4-ft and 10-ft levels. Notable surface corrosion products were evident as well as numerous pit initiation sites. Since the corrosion of the beryllium and aluminum is characterized by pitting, the geometrical character of the corrosion becomes more significant than the general corrosion rate. Both pitting factor and weight loss data should be used together. For 6-year exposure, the maximum carbon steel corrosion rate was 0.3643 MPY while the maximum beryllium corrosion rate was 0.3282 MPY and the maximum aluminum corrosion rate was 0.0030 MPY.ii (This page is intentionally left blank.)iii ACKNOWLEDGMENTS

show abstract

Section: Comparison With Other Sitesmentioning

confidence: 99%

Long Term Corrosion/Degradation Test Six Year Results

Flitton¹,

Bishop²,

Delwiche³

et al. 2004

View full text Add to dashboard Cite

show abstract

“…Another other study was conducted over a period of 14 years in 15 soils for 304 and 316 stainless steels. The erosion rates for 304 stainless steel ranged from 4.7 × 10 -8 to 3.0 × 10 -10 cm/d, with a mean value of 1.4 × 10 -8 cm/d; for 316 stainless steel, the range was from 1.6 × 10 -8 to 7.7 × 10 -11 cm/d, with a mean value of 3.6 × 10 -9 cm/d (Gerhold et al 1981). It was also observed that the corrosion rates typically decreased over time.…”

Section: J412 Radionuclide Concentration/activitymentioning

confidence: 97%

User's manual for RESRAD-BUILD version 3.

Yu¹,

LePoire²,

Cheng³

et al. 2003

View full text Add to dashboard Cite

“…[15] In general, the corrosion on the annealed materials was nil or superficial for the annealed coupons buried for up to 8 years at the sites of interest. Corrosion on the sensitized coupons was nil or negligible for those exposed to Site 'B', while small pits appeared on those exposed to Site 'D'.…”

Section: Good Goodmentioning

confidence: 99%

“…The database of stainless steel corrosion compiled by the National Bureau of Standards was used to determine the general corrosion rate to be used for the calculation. [15] A survey of the data revealed that the Hagerstown Loam at the Loch Raven (Maryland) 'Site B' is the most appropriate for comparison to the SRS soils. However, an additional site, the Lakewood Sand at the Wildwood (New Jersey) "Site D", was chosen for representative and bounding pitting corrosion data relevant to the SRS soils.…”

Section: Corrosion Of Stainless Steelmentioning

confidence: 99%

Life Estimation of Transfer Lines for Tank Farm Closure Performance Assessment

Subramanian¹

2007

View full text Add to dashboard Cite

The corrosion behavior of selected stainless steels in soil environments

Cited by 19 publications

References 0 publications

Long Term Corrosion/Degradation Test Six Year Results

Long Term Corrosion/Degradation Test Six Year Results

User's manual for RESRAD-BUILD version 3.

Life Estimation of Transfer Lines for Tank Farm Closure Performance Assessment

Contact Info

Product

Resources

About