Indian Welding Journal

Open Access Open Access  Restricted Access Subscription Access
Open Access Open Access Open Access  Restricted Access Restricted Access Subscription Access

Measurement of Diffusible Hydrogen in Steel Weldments-A Status Report


Affiliations
1 Materials Development Division Indira Gandhi Centre for Atomic Research, Kalpakkam, India
     

   Subscribe/Renew Journal


Hydrogen Assisted Cracking (HAC) is the most widely encountered cracking problem in the welding of ferritic steels. One of the methods to mitigate this type of cracking is to control and minimize the amount of diffusible hydrogen content in the welds. This, in turn, calls for standard test methods to measure diffusible hydrogen present in weldments made with different welding consumables, processes etc. This report describes test methods to measure diffusible hydrogen in the welds as per different International Standards. It also highlights the deficiencies in the present Indian Standard lor measurement of diffusible hydrogen and suggests revision of the standard to cover Submerged Arc Welding, Gas Metal Arc Welding and Flux Cored Arc Welding Processes in addition to Manual Meta! Arc Welding Process. It also recommends inclusion of Gas Chromatography Method and removal of glycerin method in the Bureau of Indian Standard (BIS) specifications.
User
Subscription Login to verify subscription
Notifications
Font Size

Abstract Views: 333

PDF Views: 5




  • Measurement of Diffusible Hydrogen in Steel Weldments-A Status Report

Abstract Views: 333  |  PDF Views: 5

Authors

S. K. Albert
Materials Development Division Indira Gandhi Centre for Atomic Research, Kalpakkam, India
T. P. S. Gill
Materials Development Division Indira Gandhi Centre for Atomic Research, Kalpakkam, India

Abstract


Hydrogen Assisted Cracking (HAC) is the most widely encountered cracking problem in the welding of ferritic steels. One of the methods to mitigate this type of cracking is to control and minimize the amount of diffusible hydrogen content in the welds. This, in turn, calls for standard test methods to measure diffusible hydrogen present in weldments made with different welding consumables, processes etc. This report describes test methods to measure diffusible hydrogen in the welds as per different International Standards. It also highlights the deficiencies in the present Indian Standard lor measurement of diffusible hydrogen and suggests revision of the standard to cover Submerged Arc Welding, Gas Metal Arc Welding and Flux Cored Arc Welding Processes in addition to Manual Meta! Arc Welding Process. It also recommends inclusion of Gas Chromatography Method and removal of glycerin method in the Bureau of Indian Standard (BIS) specifications.