Metallurgy Lab

GIW Metallurgical/Materials R&D Lab uses advanced testing equipment and instruments to perform materials development, technical support, application evaluation (e.g. wear and corrosion) and failure analysis tasks.

The testing capabilities include:

• Mechanical testing
• Thermal analysis
• Corrosion and wear tests
• Evaluation of alloy microstructure and solids particles

Mechanical testing includes tensile and bend tests, hardness measurement and impact/fracture toughness tests.

Corrosion testing includes exposure/submersion corrosion tests and electrochemical corrosion tests.

Optical and electron microscopes along with an image analysis system are used to study the microstructure of materials and the morphology (shape and size) of solids/particles involved in slurries.

Wear and corrosive wear are major issues in slurry transportation. For materials selection, it is crucial to study slurry/solids characteristics and wear behaviors of materials.

In addition to field tests, wear simulation and testing can be conducted within well-designed lab apparatus/conditions such as the Miller wear tester and Coriolis wear testing machine.

Miller Wear Testing is a standard testing method described in ASTM G75-01. It is used to determine the slurry abrasivity (Miller Number) and slurry abrasion response of materials (SAR Number).

By using standard slurry or reference specimen, the relative material wear resistance and slurry abrasivity can be ranked. Based on Miller and SAR numbers, the best material can be determined and the service life of wear components may be predicted.

GIW offers Coriolis Wear Testing, which is available at only a limited number of places in the world. The GIW Coriolis erosion tester is perhaps the largest in scale and most sophisticated in design, performing both sliding and impact wear tests.

The major hydraulic and testing parameters are measured and monitored by a computerized system.

For more information, contact GIW Industries.