HomeMagazine2021August 2021, Vol. 248, No. 8Live Mapping of HAZ Softening in Pipeline Seam, Girth Welds

August 2021, Vol. 248, No. 8

Features

Live Mapping of HAZ Softening in Pipeline Seam, Girth Welds

By Mahyar Asadi, Advanced Welding Engineer, Applus Engineering Canada    Modern pipeline grades, such as X70 and X80, improve many properties but come with undesirable features such as heat-affected zone (HAZ) softening in seam and girth welds.    Figure 1 These pipeline steels with microalloying elements are manufactured using thermomechanical controlled processing (TMCP) with controlled rolling and cooling for improving mechanical properties. When pipelines are welded together, the HAZ material adjacent to the weld pool experiences an irregular thermal profile resulting in adverse microstructural evolution.    This relatively small

Log in to view this article.

Not Yet A Subscriber? Here are Your Options.

1) Start a FREE TRIAL SUBSCRIPTION and gain access to all articles in the current issue of Pipeline & Gas Journal magazine.

2) Start your full access subscription to Pipeline & Gas Journal and gain UNLIMITED access to this article, the current issue, all past issues in the technical archive, access to all special reports, special focus supplements and more. Pricing start at $395/year.   

*Access will be granted the next business day.

 

Related Articles

Comments

{{ error }}
{{ comment.comment.Name }} • {{ comment.timeAgo }}
{{ comment.comment.Text }}