Mechanical Testing

Hardness Testing

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Tensile Testing

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Impact Testing

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Scratch Testing

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Mechanical Testing- Tensile Testing

Tensile testing is the most fundamental of mechanical testing methods. Tensile testing is most commonly used to determine the yield and tensile strength of a material. The tensile testing machine can also be used for flexural- and compression testing.

Typical applications:

  • Determination of yield and tensile strength
  • Maximum deflection
  • Comparison of stress-strain curves
Mechanical testing- tensile testing
Test plate mounted for tensile testing.

Mechanical Testing – Hardness Testing

Hardness testing is a useful tool for evaluation of materials and quality control of manufacturing processes. The hardness can be used to estimate other mechanical properties such as tensile strength. Hardness testing methods we provide are Vickers, micro-Vickers, Brinell, Rockwell and Leeb rebound (portable).

Typical applications:

  • Hardness profile over welds
  • Measuring of hardening depth
  • Verification of heat treatment
  • Quality controls in conjunction with failure investigations
Vickers Hardness Testing
Hardness testing using Micro Vickers.

Mechanical Testing- Impact Testing

Impact testing is a commonly used method for identifying how much energy a material can absorb during collision. The absorbed energy can be used to determine material properties such as toughness and fracture resistance. An impact test can also be useful to determine materials behaviour at different temperatures and does often play a significant role when it comes to identifying critical temperature ranges for a certain material, such as ductile-brittle transition.

Typical applications:

  • Determination of ductile-brittle transition
  • Identifying critical operating temperatures for a certain material
  • Estimate material properties such as toughness and fracture resistance
Tensile testing, fracture surface
SEM- image of fracture surface after impact testing, showing a typical brittle cleavage mode of fracture.

Mechanical Testing- Scratch Testing

Scratch testing is often performed to determine the cohesive and adhesive properties of a material. The method involves a hard tip (often diamond) being drawn across the surface of a material with an applied variable load, forming a scratch. The method is commonly used as quality control of coatings but may also be used to estimate bulk materials resistance to abrasion/wear.

Typical applications:

  • Quality control of coatings or bulk materials
  • Determination of abrasive and adhesive properties
Mechanical testing- scratch testing
Steel sample mounted for scratch testing.

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