High Load Head
The 30 N high load head greatly expands the capability of the NanoTest Vantage to cover both the nano and micro ranges. Both loading mechanisms are permanently mounted side-by-side, allowing easy transfer of the sample between both.
Materials commonly tested including cemented carbides, metals, shape memory alloys and hard coatings.
The high load head can be used for:
- Micro-indentation, micro-hardness
- Micro-impact and fatigue
- Micro scratch and wear
- These tests can be done at high temperature (max 500°C) or in inert environments.
- The optical microscope can be used for precise positioning of indentations.
Micro-indentation example: Cemented carbides
A knowledge of both hardness and toughness is required to assess performance under severe mechanical loading. Even subtle changes to the % binder and carbide grain size in cemented carbides can have a dramatic influence on tool life. It is the sub-surface mechanical properties that control the fatigue performance in applications such as high performance stamping. Micro-Indentation is used to determine the mechanical properties of different cemented carbides.