Use GIVING24 at checkout to save 20% on eCourses and books (some exclusions apply)!
Stress corrosion cracking (SCC) of carbon steel in fuel ethanol service has been observed in an increasing number of failures in the last few years. In the presence of oxygen, all of the samples evaluated in this study produced varying degrees of SCC, except for one of the producer ethanol samples. The reason for the high corrosion potential in this sample is still unknown and more detailed analysis of the sample chemical make-up is needed.
Stress corrosion cracking (SCC) of carbon steel in fuel ethanol service has been observed in an increasing number of failures in the last few years. This increase in failures is also due to the increasing use of ethanol for fuel applications. However, these failures have reportedly occurred only in terminal storage tanks and other associated equipment but not at the ethanol producer locations. The work being presented herein is an extension of an American Petroleum Institute (API) sponsored project that seeks to elucidate the specific factors that play a role in this SCC phenomenon. The effect of corrosion potential and ethanol processing source was investigated to determine the differences in SCC between laboratory grade ethanol, samples from ethanol producers and E-85 fuel ethanol. In the previous study, corrosion potential as influenced primarily by dissolved oxygen was identified as the most important SCC factor. In the presence of oxygen, all of the samples evaluated in this study produced varying degrees of SCC, except for one of the producer ethanol samples. This sample was found to have a corrosion potential which appeared to be well outside of the cracking potential range. The reason for the high corrosion potential in this sample is still unknown and more detailed analysis of the sample chemical make-up is needed. Slow strain rate testing (SSRT) and electrochemical testing methodologies were employed in this particular study along with some chemical characterization techniques.
Keywords: Carbon steel, stress corrosion cracking, ethanol, fuel ethanol, slow strain rate testing, corrosion potential
We are unable to complete this action. Please try again at a later time.
If this error continues to occur, please contact AMPP Customer Support for assistance.
Error Message:
Please login to use Standards Credits*
* AMPP Members receive Standards Credits in order to redeem eligible Standards and Reports in the Store
You are not a Member.
AMPP Members enjoy many benefits, including Standards Credits which can be used to redeem eligible Standards and Reports in the Store.
You can visit the Membership Page to learn about the benefits of membership.
You have previously purchased this item.
Go to Downloadable Products in your AMPP Store profile to find this item.
You do not have sufficient Standards Credits to claim this item.
Click on 'ADD TO CART' to purchase this item.
Your Standards Credit(s)
1
Remaining Credits
0
Please review your transaction.
Click on 'REDEEM' to use your Standards Credits to claim this item.
You have successfully redeemed:
Go to Downloadable Products in your AMPP Store Profile to find and download this item.