Menu
Search
Filters
Close
Menu

Celebrate World Corrosion Awareness Day with 20% off eCourses and eBooks with code WCAD2024 at checkout!

07094 Understanding and Avoiding Intergranular Stress Corrosion Cracking of Welded Supermartensitic Stainless Steel

Picture for 07094 Understanding and Avoiding Intergranular Stress Corrosion Cracking of Welded Supermartensitic
Available for download

This paper describes a Joint Industry Project designed to test existing understanding of the mechanism of sensitisation to intergranular corrosion or stress corrosion cracking (IGSCC) of welded supermartensitic stainless steels.  Existing data were reviewed and two series of welding trials and corrosion tests were undertaken.

Product Number: 51300-07094-SG
ISBN: 07094 2007 CP
Author: Paul Woollin
Publication Date: 2007
$0.00
$20.00
$20.00

Supermartensitic stainless steels (SMSS), including both lean grades (without molybdenum) and high grades (with 2% molybdenum), have shown sensitivity to intergranular corrosion or stress corrosion cracking (IGSCC) in weld HAZs during laboratory testing in chloride solutions acidified with CO2 at above about 100°C(1-9). Also, lean SMSS grades have cracked in service when exposed to hot acidic brines(4,6). This paper describes a Joint Industry Project designed to test existing understanding of the mechanism of sensitisation to IGSCC of welded SMSS. The project also sought to determine whether IGSCC could be reliably avoided via control of the welding process or by brief PWHT. Existing data were reviewed and two series of welding trials and corrosion tests were undertaken. The review and first series of tests allowed a hypothesis of the mechanism of sensitisation in SMSS to be developed, which was then tested via the second series of tests.

Keywords: Supermartensitic stainless steel, intergranular stress corrosion cracking, post weld heat treatment

 

Supermartensitic stainless steels (SMSS), including both lean grades (without molybdenum) and high grades (with 2% molybdenum), have shown sensitivity to intergranular corrosion or stress corrosion cracking (IGSCC) in weld HAZs during laboratory testing in chloride solutions acidified with CO2 at above about 100°C(1-9). Also, lean SMSS grades have cracked in service when exposed to hot acidic brines(4,6). This paper describes a Joint Industry Project designed to test existing understanding of the mechanism of sensitisation to IGSCC of welded SMSS. The project also sought to determine whether IGSCC could be reliably avoided via control of the welding process or by brief PWHT. Existing data were reviewed and two series of welding trials and corrosion tests were undertaken. The review and first series of tests allowed a hypothesis of the mechanism of sensitisation in SMSS to be developed, which was then tested via the second series of tests.

Keywords: Supermartensitic stainless steel, intergranular stress corrosion cracking, post weld heat treatment

 

Product tags
Also Purchased
Picture for 07091 Effect of Alloying Element on Intergranular Stress Corrosion Cracking Susceptibility of Super
Available for download

07091 Effect of Alloying Element on Intergranular Stress Corrosion Cracking Susceptibility of Super Martensitic Stainless Steel Welded Joints in Sweet Environment

Product Number: 51300-07091-SG
ISBN: 07091 2007 CP
Author: Hisashi Amaya, Kazuhiro Ogawa, Akira Taniyama, and Masakatsu Ueda
Publication Date: 2007
$20.00
Picture for Assessing Stress Corrosion Cracking Risks on Stainless Steel Piping and Equipment
Available for download

Assessing Stress Corrosion Cracking Risks on Stainless Steel Piping and Equipment

Product Number: 51317--8899-SG
ISBN: 8899 2017 CP
Author: Tina Tajalli
Publication Date: 2017
$20.00

This paper focuses on the risks of polythionic acid and chloride stress corrosion cracking, and reviews the risks from both internal process services and from external atmospheric and/or wet insulation conditions.
Picture for 07092 Effects of Chemical Components on Resistance to Intergranular Stress Corrosion Cracking in Sup
Available for download

07092 Effects of Chemical Components on Resistance to Intergranular Stress Corrosion Cracking in Supermartensitic Stainless Steel

Product Number: 51300-07092-SG
ISBN: 07092 2007 CP
Author: Yukio Miyata, Mitsuo Kimura, and Katsumi Masamura
Publication Date: 2007
$20.00
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