A review on cold cracking phenomenon in high strength steel welded joints: causes and cures

الملخص EN

Welding engineering becomes essentially important in all fabricating branches, such as; oil pipelines, ship industry, oil platforms, vehicle industry, oil tanks, and more applications.

Hydrogen-induced cracking related to welding could be a source of genuine harm to welded structures.

In this manner, it may be a common topic in such areas and its avoidance is an imperative issue.

Steel weldability, with respect to cold cracking, is relative to steel hardenability, which indicates the forming of hard and fragile martensitic microstructure.

The most perfect way to dodge martensite is by abating the cooling rate of the parent metal and warming the heat-affected zone.

There are numerous arrangements to avoid the over issue, two of them are : preheating and the utilization of fewer hydrogen consumables.

The current paper surveys a few of past and later inquiries that are coordinated towards getting a more coherent understanding of the impact of welding parameters on cold breaking shirking, centering especially on the impact of preheating technique and diffusible hydrogen levels on cold cracks of different steel types.

However, one of the foremost vital discoveries of this ponder is that resistance to hydrogen-induced cracks has for the most part progressed in numerous steel types, and the required ways to dodge cold cracks by control of the welding conditions are well set up.