The IncoTest laboratories have test equipment which provides a comprehensive determiation of the mechanical properties of engineering materials. Tests are performed to national, international and clients' specifications on a range of products including bar, sheet, wire, tube and fasteners.
Ambient Tensile Testing
The mechanical properties of materials are evaluated using computer controlled tensile testing machines incorporating the very latest software, capable of testing a wide range of forms, from very fine wire and strip to precision machined test pieces. Tests can also be performed on fastener components to full section bar and tube.
Non-Ambient Charpy Testing
Elevated Tensile Testing to 1,200˚C
The mechanical properties of materials are evaluated using computer controlled tensile testing machines incorporating the very latest software, capable of testing a wide range of forms, from very fine wire and strip to precision machined test pieces. Tests can also be performed on fastener components to full section bar and tube. Tensile tests are performed up to 1,200˚C.
Charpy - standardized high-strain rate test which determines the amount of enery absorbed by a material during fracture. This absorbed energy is a measure of a given material's toughness and acts as a tool to study temperature-dependent ductile-brittle transition.
Izod is an ASTM standard method of determining impact strength. A notched sample is generally used to determing impact strength.
The mechanical properties of materials may be determined by indentation hardness tests. Vickers, Brinell, low load Brinell, Rockwell and superficial Rockwell tests can be performed.
Sheet or tube tested up to 20mm thickness through a variety of form.
In support of the fracture mechanics data, the crack propagation properties of engineering materials are determined using the following techniques:
Low Cycle Fatigue Testing
Carried out on servo hydraulic machines under load or stroke control conditions at up to 1,000°C.
High Cycle Fatigue Testing
Carried out under rotating bend using Wohler/Rolls-Royce designed machines or an Instron 1603 magnetic resonance machine.
Fracture Toughness Test
Assessing a material's resistance to crack propagation is performed using compact tension specimens from sub-zero to elevated temperatures.
Our laboratories experience is founded on the initial development of nickel alloys for jet engine applications. This work has continued through subsequent generations of these types of alloys and more recently in alloy approvals for ultra critical power plant applications.
Stress Rupture Testing
IncoTest has one of the largest and best equipped laboratories in Europe with 400 high-sensitivity creep and stress rupture machines operating at up to 1,200˚C in an air conditioned laboratory controlled at ±2°C. The stress machines range from direct load to lever types with a load range from
Creep Strain Testing
Creep strain tests are performed using high temperature extensometry and high-precision transducers automatically logged and processed by the supervisory computer. A range of specimen types can be tested including smooth, smooth and notched, miniature, and flat designs.
Test pieces are produced by low stress plunge grinding, a technique being ideal for producing test pieces from hard alloys to finished size with minimal harmful residual surfaces stresses. Test pieces can be produced unthreaded or with threads to unified, metric, BS, or client specifications. Conventional machine tools are also used for drilling, grinding, milling, shaping and turning. IncoTest also specialises in the manufacture of miniature test specimens.
IncoTest Laboratories are equipped for the preparation and evaluation of a wide range of alloys and materials. Techniques available include:
- Automatic cutting, mounting, grinding, and polishing equipment
- Digital image capture and evaluation using optical microscopy
- Grain Size
- Structural Evaluation
- Inclusion/Cleanness Assessment
- Micro-Indentation Hardness Testing
- Case Depth/Coating Depth Assessment
In addition, the laboratory offers a range of physical testing including measurement of the Coefficient of Thermal Expansion.
Using automatic cutting, mounting, grinding and polishing equipment, a wide variety of materials can be prepared for examination. This is carried out using a wide range of optical microscopes.