AMPP Store - Individual Conference Papers

Available for download

Effect Of Nb Addition And Processing Path On The KISSC Of A Low Alloyed OCTG Steel

Product Number: 51321-16696-SG

Author: Marc-Antoine Thual; Koen Bracke; Nuria Sanchez; Steven G. Jansto

Publication Date: 2021

$20.00

Available for download

Effect Of N-Furfuryil-Aniline And N-Furyl-C-Phenyl-Nitrone On Corrosion Inhibition Of Low Carbon Steel In 3% Nacl

Product Number: 51322-18167-SG

Author: A. Fonseca, E. Almanza, W. Rozo, E. Vera

Publication Date: 2022

$20.00

In the hydrocarbon industry, internal corrosion is one of the most worrisome threats because it can cause catastrophic failures in the pipelines and cause harm to people and the environment. Some authors mention that internal corrosion damage is due to components such as H2S, CO2, mercaptans, sulfate-reducing bacteria, and suspended solids. These variables lead to thickness losses in the ducts, which contributes to the increase in the rate of deterioration.^{1 2 3} study reported by Askari et al, shows that the internal corrosion rate can be so high that it can consume the 3-6mm allowed for the pipeline in a year, which leads to irreparable economic losses.⁴

Available for download

Effect of Ni on Sulfide Stress Cracking and Stress Grooving in Carbon Steel - Part 1: Constant-load (Dead-weight) Test

Product Number: 51324-20715-SG

Author: Taishi Fujishiro; Taro Muraki; Nobuyuki Ishikawa; Daichi Izumi; Takuya Hara

Publication Date: 2024

$40.00

Sulfide stress cracking (SSC) occurs in steel exposed to sour environments. Ni promotes the formation of a crack-like corrosion morphology (so-called stress groove or fissure), which accelerates the SSC; however, the mechanisms underlying fissure formation and growth are not fully understood. In this study, the effects of Ni on SSC and fissures were investigated. Constant-load tests were conducted at various potentials using TS 800 MPa grade steel with and without 1 % Ni addition. The fissures were formed near the corrosion potential on adding Ni. Anodic or cathodic polarization promoted SSC, suggesting that SSC was affected by both active path corrosion (APC) and hydrogen embrittlement (HE) mechanisms. In addition, the fissure shapes and crystal orientations of the microstructure were analyzed to classify the fissures as dissolution (corrosion) or mechanical cracking. Further, characteristic grooves promoted by Ni were confirmed to be APC.

Available for download

Effect of Ni on Sulfide Stress Cracking and Stress Grooving in Carbon Steel - Part 2: Four Point Bend Test

Product Number: 51324-20709-SG

Author: Nobuyuki Ishikawa; Taishi Fujishiro; Eiji Tada; Daichi Izumi; Junji Shimamura

Publication Date: 2024

$40.00

Four point bend sulfide stress cracking (SSC) tests were carried out under various conditions of H2S partial pressure, pH, soaking time, and applied stress to investigate the formation of stress groove (or fissure) and SSC behavior in TS 800 MPa (116 ksi) grade steel plates with 1%Ni added and 0% Ni steels. Under low hydrogen sulfide (H2S) partial pressure conditions, a fissure was formed only in the 1%Ni steel, although no SSC occurred. Morphology of the fissure in 1% Ni steel indicates that fissure extends by a corrosion, which is also called the anodic dissolution or the active path corrosion (APC). The fissure in 1%Ni steel grew almost linearly with soaking time in the test solution with stabilized pH condition. Formation and growth of fissure was enhanced by higher applied stress and there was a limiting stress for the formation of fissure. SSC occurred in both steels under high H2S partial pressure and low pH conditions. Detailed metallographic investigation for SSC cracks revealed that a corrosion pit initially formed then turned into a crack possibly by hydrogen embrittlement (HE), then finally caused unstable crack extension to rapture the specimen. Based on the experimental results for the fissure formation and SSC, the effect of both APC and HE are discussed.

Available for download

Effect of Nitrogen Blanketing on Soil-Side Corrosion Mitigation of the Double Shell Tanks at Hanford

Product Number: 51323-19354-SG

Author: Pavan K. Shukla, Roderick E. Fuentes, Bruce J. Wiersma, Crystal Girardot, Jason Page, Shawn Campbell

Publication Date: 2023

$20.00

High-level radioactive waste generated during reprocessing of spent nuclear fuel at Hanford has been stored in 149 single- and 27 double shell tanks (DSTs). Each DST consists of a primary shell (inner) surrounded by secondary (outer) shell. The secondary shell’s bottom rests on a concrete foundation.

Available for download

Effect of Operating Parameters on the Corrosion of Candidate Heat Exchanger Alloys in Advanced Thermal Power Plants

Product Number: 51324-21229-SG

Author: Minkang Liu; Yimin Zeng

Publication Date: 2024

$40.00

This study investigates the corrosion behavior of candidate steels with different Cr content in high-temperature s-CO2 environments and the influence of operating pressure. The results underscore the significant role of chromium, with content above 16 wt.% in the base metal proving effective in terms of conferring corrosion resistance. Moreover, the study reveals the substantial impact of operating pressure on weight gain, resulting in much thicker oxide layers. Further microscopic examinations may be required to gain deeper insights into oxide layer structure and composition. These findings advance our understanding of corrosion modes and extent within s-CO2 Brayton cycles.

Available for download

Effect Of Organic Acids In Pyrolysis Oils On The Corrosion Of Constructional Materials For Oil Storage And Transportation

Product Number: 51322-18054-SG

Author: Xue Han, Kaiyang Li, Yimin Zeng

Publication Date: 2022

$20.00

Due to the increase in world’s population and technologies, and the limited fossil fuel reserves, efforts have been taken to seek alternative energy resources, such as bioenergy that is produced from renewable biomass, to meet the increasing need for energy. The feedstocks for bioenergy production can include the waste biomass from forestry and agricultural sectors and various industries such as food processing industry and pulp and paper industry, making a profit while saving costs from waste management.

Available for download

Effect Of Organic Solvent On Corrosion Inhibition of Mild Steel in CO2 environment

Product Number: 51322-17942-SG

Author: Xi Wang, Shuai Ren, Yi He, David Young, Marc Singer, Maalek Mohamed-Said, and Sheyla Camperos

Publication Date: 2022

$20.00

Corrosion inhibitors is commonly used to combat internal corrosion of mild steel pipelines in oil and gas production and transmission systems. Since the corrosive environment and flow conditions could vary in different fields, small scale laboratory testing is essential to determine the effectiveness of inhibitors in specific corrosive environments. To ensure the accuracy of inhibitor dosage in a small-scale lab setup, the inhibitor often needs to be pre-diluted before addition to the test electrolyte. This pre-dilution has the potential to lead to experimental errors. However, little information can be found about pre-dilution steps, and their influence on inhibition phenomena, in the open literature.

Available for download

Effect Of Oxygen Concentrations on Localized Corrosion of Martensitic And Super Martensitic Stainless Steels

Product Number: 51323-18891-SG

Author: Suresh Divi, Bruce Craig

Publication Date: 2023

$20.00

It has become somewhat common in the oil and gas industry to convert producing wells containing 13Cr stainless steels to water injection wells. This practice has led to numerous tubing failures due to pitting of the 13Cr from oxygen dissolved in the injection water. The water source for these wells is often from produced water and seawater but other waters may also be injected.

Available for download

Effect of Oxygen Excursion On SCC Resistance of Tubing Materials

Product Number: 51323-18779-SG

Author: Luciana Intiso, Yvi Le Guen, Federica Sammartino, Roberto Morana, Lee Smith

Publication Date: 2023

$20.00

Oil and gas production from highly saline reservoirs can present challenges to the completion materials. The most saline fields often require downhole injection of (low chloride) wash water to dilute the produced water and mitigate the threat of halite precipitation on the production tubulars. The present paper investigates the threats associated with the co-mingled wash water and production fluids with respect to common completion materials.

Available for download

Effect of Oxygen in Back Purging Gas on Corrosion Resistance of Super Duplex Welded Joints

Product Number: 51324-21111-SG

Author: Tatiana C. Almeida; Rogaciano M. Moreira; Merlin C. E. Bandeira; Oscar R. Mattos; Flávia M. F. Guedes

Publication Date: 2024

$40.00

Several offshore pipelines in Pre-salt fields, Brazil, are made of Super Duplex stainless steel. When welded, in general, these materials present a decrease in its corrosion resistance. Welding procedures, materials properties, surface conditions and post-weld treatment have influence on the resistance to local corrosion Although there is a strict control regarding the contamination of back purging gas with oxygen, sometimes, this control may fail and the oxygen content may exceed this limit. Understanding if the pitting corrosion resistance is affected by a higher oxygen level and how a post-weld surface treatment by pickling and passivation can improve the corrosion resistance is important in situations where the control of oxygen content is limited. In the present study, specimens welded with back purging gas containing 100 ppm and 200 ppm of oxygen and without back purging gas were investigated through ASTM (1) G48- A, and through ASTM G48 method E6. The pitting resistance was improved after post-weld surface treatment for super duplex stainless steel.

Available for download

Effect of oxygen in back purging gas on localized corrosion resistance of duplex welded joints with and without post-weld surface treatment

Product Number: 51323-19445-SG

Author: Tatiana C. Almeida, Rogaciano M. Moreira, Merlin C. E. Bandeira, Susana L. Díaz, Drielly L. Souza, Brenda C. S. Cardozo, Rafaela A. Posse, Oscar R. Mattos, Flávia M. F. Guedes, Ilson P. Baptista, Petronio Zumpano Junior, Ricardo R. Marinho, Aline L.S. Gomes, Marcelo F. Motta, Hélio C. Miranda

Publication Date: 2023

$20.00

Duplex stainless steel is widely used in Brazilian offshore pipelines since the pre-salt environment is under high corrosion scenario. Welding processes are often used in applications involving this steel. However, in general, welding imposes a reduction in the corrosion resistance of stainless steels.

Individual Conference Papers

Association for Materials Protection and Performance