Microhardness - Knoop & Vickers

Microhardness testing reveals the hardness of the material on a microscopic level. Generally used to verify heat treating, microhardness tests may be performed on the surface of the material or on a polished cross-section.

 

Microhardness testing may be used to check the case depth of case hardened steel, or to verify the effectiveness of other heat treating processes. Because the indenters used are much smaller than either Rockwell or Brinell indenters, surface testing may be considered non-destructive. 

 

Microhardness testing may be performed on cross-sectioned specimens. The cross-section is polished and the indenters are pressed into the surface under calibrated forces that range from 100 to 500 grams. The indentations are measured to make the hardness determination. 

 

Weld microhardness testing reveals the thermal effects of the welding process in the parent material(s), the weld material and the HAZ  (Heat Affected Zone) materials. 

 

Both Knoop and Vickers testing methods are available. 

 

Microhardness analysis is done according to ASTM E384 Micro Indentation Hardness of Materials. 

 

Get started today. Contact us for a quote, more information, or answers to your questions. Click here.

 
 

Metaltest Accreditations

NADCAP
Materials Testing

prilogo
AC7006
Scope of Approvals

Aerospace Approvals

Metaltest is OEM approved to perform military and commercial aerospace testing for a wide range of prime contractors including:

  • Boeing
  • Bombardier
  • Cessna
  • Goodrich
  • Gulfstream
  • Hawker Beechcraft
  • Sikorsky

Nuclear Approvals

Metaltest is NQA-1 Compliant for nuclear power testing. Our clients include:

  • ABW Technologies 
  • Alaskan Copper

Industry Associations

Metaltest holds memberships in the following industry associations:

Site Login

Get started today. Contact us for a quote, more information, or answers to your questions. Click here.