MR Reference Test Block 2

MR Reference Test Block 2

Category: Equipment And Test Line Available
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Description

MR Reference Test Block 2

Structure of the test block

The reference test block type 2 is rectangular in shape with dimensions of 155 x 50 x 2,5 mm. The base material is stainless steel plated with a layer of nickel of 60 μm thickness. The nickel layer is plated with a thin layer of hard chromium of 0,5 μm to 1,5 μm thickness. Five starshaped defects of 3,0 to 5,5 mm diameter have been artificially produced in this layer. The five defects are uniformly placed according to their sizes. In order to check washability (visual assessment of excess penetrant removal) the test panel got on the artificial defected side four adjacent areas of 25 x 35 mm dimension with a roughness of Ra = 2,5 μm, Ra = 5 μm, Ra = 10 μm, Ra = 15 μm. The smallest defect is located next to the area showing the smallest roughness.

Field of application

 
 
 

 

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