Surface Hardness of HAZ of martensite stainless weld

[Tasutasu]

Dear sir

Does anyone know the literature on hardness distribution from the surface to the inside of the haz part of martensitic welds? I'm in trouble because the surface is abnormally hard and I don't understand the reason.

 

[weldstan]

The surface will be harder because there is no tempering effect from susequent beads. One can add a tempering bead and then grind it off after welding to lowere the hardness of the original capping bead.

 

Not enough information.
Give us more details like the material grade and welding procedure, and maybe a picture of what you have done. Please explain what you mean by 'martensitic weld'.



"Everyone is entitled to their own opinions, but they are not entitled to their own facts."

 

[Nashanas]

The surface hardness value can be set by any relevant customer specification or construction code. What was the hardness value of base metal before welding? And what is the hardness value that you have foundin the HAZ? Which instrument did you use to find the hardness value?