Welding material hardness test and crystal particle test

Stainless steel welding material hardness test and crystalparticle test

1. The material is as follows, which is not evenly cut off, which is more difficult to polish and polish, and which is as slow as possible, or best embedded.

Use of utensils: Fuyun gold-specific sandpaper 240# 600# 1200# three tracks, polishing Fuyun real silk, clean and clean with no tail residue.

3. Sample mirror polishing, using the following picture of the change in the size and effects of the crystal particle at the welding position following the corrosive corrosive of stainless steel:

The size of the crystals varies, from welding position to welding area to integration area, and the size of the mother crystals varies. The other is observed by the golden phase, and the welding is normal and the above pictures are available for reference.

The hardness of the different welding areas varies, with one of the positions as the result, and the results of the welding hard measure are shown below the chart: