Server maintenance is scheduled for Saturday, December 21st between 6am-10am CST.

During that time, parts of our website will be affected until maintenance is completed. Thank you for your patience.

Menu
Search
Filters
Close
Menu

Use GIVING24 at checkout to save 20% on eCourses and books (some exclusions apply)!

The Susceptibility Of Spheroidal Graphite Cast Iron To Hydrogen Induced Stress Cracking

Picture for The Susceptibility Of Spheroidal Graphite Cast Iron To Hydrogen Induced Stress Cracking
Available for download

Cast Iron with its ancient history, traced back to 6th century BCE1, has been used for centuries to anything from manhole covers & fire hydrants to bridges. However, the development of Spheroidal Graphite Cast Iron (SGCI) or Nodular Cast Iron, in the 1940’s, with resulting improvement in mechanical properties such as ductility and fracture toughness, paved the way for further growth in industrial usage of cast iron.2 The material has been adopted by several industries such as automotive-, nuclear-, and wind turbine industry. During the last decade, SCGI has gained increased attention as construction material for subsea equipment in offshore oil & gas production, mainly competing with welded and bolted steel assemblies.

Product Number: 51322-17796-SG
Author: Veronika Djupvik, Cathrine Hartung, Atle H. Qvale, Roy Johnsen, Ida Westermann
Publication Date: 2022
Industries: Corrosion Monitoring and Control , Coatings and Linings , Coatings
$0.00
$20.00
$20.00

Due to its attractive combination of cost, mechanical properties and castability, use of Spheroidal Graphite Cast Iron (SGCI) has lately, to some extent, replaced steel for use in structural and mechanical components in subsea applications.

Subsea structures are typically protected by use of sacrificial anodes attached to the host structure. Under such conditions nascent hydrogen is generated on the surface of the protected material due to the cathode reaction, hence Hydrogen Induced Stress cracking (HISC) is a constant concern for subsea components subjected to tensile stress. In this work, the SGCI’s resistance to Hydrogen Embrittlement (HE) has been examined by use of Slow Strain Rate Test (SSRT) and Stepwise Constant Load (SCL) test. Since structural steel is the main competing candidate material for such subsea applications, two grades of SGCI have been compared to two structural steel grades with similar mechanical strength.

The HISC tests have been supported by fractography characterization and microstructural examination by use of Optical Light Microscope (OLM) and Scanning Electron Microscope (SEM) in combination with use of Electron Back Scattering Diffraction (EBSD) for grain size distribution measurements.

Due to its attractive combination of cost, mechanical properties and castability, use of Spheroidal Graphite Cast Iron (SGCI) has lately, to some extent, replaced steel for use in structural and mechanical components in subsea applications.

Subsea structures are typically protected by use of sacrificial anodes attached to the host structure. Under such conditions nascent hydrogen is generated on the surface of the protected material due to the cathode reaction, hence Hydrogen Induced Stress cracking (HISC) is a constant concern for subsea components subjected to tensile stress. In this work, the SGCI’s resistance to Hydrogen Embrittlement (HE) has been examined by use of Slow Strain Rate Test (SSRT) and Stepwise Constant Load (SCL) test. Since structural steel is the main competing candidate material for such subsea applications, two grades of SGCI have been compared to two structural steel grades with similar mechanical strength.

The HISC tests have been supported by fractography characterization and microstructural examination by use of Optical Light Microscope (OLM) and Scanning Electron Microscope (SEM) in combination with use of Electron Back Scattering Diffraction (EBSD) for grain size distribution measurements.

Product tags
Also Purchased
Picture for The Performance Of HPHT Corrosion Inhibitor At Offshore Downhole Sour Conditions
Available for download

The Performance Of HPHT Corrosion Inhibitor At Offshore Downhole Sour Conditions

Product Number: 51322-17752-SG
Author: Youngil Choi, Youngsun Yim, Bang Cha Rang Song, George Economopoulos
Publication Date: 2022
$20.00

As traditional reserves deplete onshore and offshore, the oil industry is moving into increasingly deeper waters and harsh environments in the pursuit of hydrocarbons. As the industry drills deeper, the challenges that face infrastructure increase markedly with the longstanding issues of corrosion. One of the major challenges to corrosion management is the extreme pressure and temperature.
Picture for The NH-ME Metallized Memorial Bridge
Available for download

The NH-ME Metallized Memorial Bridge

Product Number: 51322-17837-SG
Author: Jerry S. Zoller
Publication Date: 2022
$20.00

Metallizing in NH was a coating used only sparingly in the past at critical locations on two major bridges. Its greater use was severely limited by the lack of qualified applicators, absence from bridge fabricator operations, and overall excessive cost. This picture changed dramatically with the impetus of the new metallized Memorial Bridge project and the massive investment in metallizing equipment at a large local bridge fabricator that made metallizing possible for this bridge. The successful use and ten-year performance of the thermal spray coating (TSC), i.e. metallizing, on this bridge has had a significant impact on metallized New England bridges to
follow.
Picture for Toward Objective Evaluation Of FRP Corrosion Barrier Condition
Available for download

Toward Objective Evaluation Of FRP Corrosion Barrier Condition

Product Number: 51322-17669-SG
Author: Geoff Clarkson
Publication Date: 2022
$20.00

Fiber reinforced polymer (FRP) and other polymeric materials are used in many ways to reduce and manage corrosion damage for industrial, infrastructure and municipal applications. It is common practice to use the term “resin” for polymers in these materials. This paper uses polymer interchangeably with resin. This paper will also only consider glass fiber reinforcements.
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support