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ASTM F Standard Test Method for Tension Testing of Nickel-Titanium Superelastic Materials. standard by ASTM International, 10/01/. ASTM F requires an extensometer of Class C or better to be used for wires with a diameter greater than mm. The test method is designed to pull the. Find the most up-to-date version of ASTM F at Engineering

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Accurate strain f25116 The weight of a clip-on extensometer may cause bending of the wire, and the knife-edges may slip, damage the wire, or lead to premature failure Secure gripping for varying specimen diameters Accurate turnaround points Instron Solution: The clamping mechanism can be activated either automatically or through a foot switch. Bluehill LE for Basic Testing. Discover simpler and smarter testing with features such as pre-loaded test methods, QuickTest in seconds, enhanced data exporting: Software for Series Systems.

A specially designed horn with a smooth finish and a contoured surface with a graduated cam allows for easy loading and a stress reduced clamping area on the specimen. By continuing to use our site, you accept our cookie policy. Next Checking to see if you are a returning visitor…. Bluehill Universal Software is built from the ground-up for touch interaction and an intuitive user experience.

Depending on the exact mix of Nickel-Titanium, a fixture like this may need to be used. The second generation Advanced Video Extensometer AVE 2 utilizes patented measurement technology in the fastest, most accurate non-contacting strain measurement device commercially available. Contact Us View Accessories Catalog. Nitinol Testing requires a thin strip of the material to be pulled in tension at a specified rate. Email addresses can only contain letters, numbers and the following special characters: Both the AVE 2 and Aastm are capable of measuring strain in cyclic loading and to failure without damaging the Nitinol wire.


For wire with a diameter greater than 0. Nitinol, also known as Nickel-Titanium, is a highly elastic metal that also has shape memory.

The AutoX is a high-resolution, long-travel automatic contacting extensometer. Users of previous versions of software such as Bluehill 2 and Bluehill 3 can easily upgrade to the newest version of Bluehill.

ASTM F covers the tension testing of Nitinol which is a material used to make stents in the biomedical industry. Email addresses must contain the symbol. asmt

It is well suited for applications involving plastics, metals, biomedical, composites, elastomers, and more. F256 action wedge grips are the most common fixturehowever other types of grips may be used as well. WaveMatrix 2 for Dynamic Testing. Pneumatic cord and yarn grips provide a convenient method for clamping fiber, cord, yarns and fine wires to reduce the problem associated with testing these materials.

Glossary of Materials Testing Terms.

In the video we demonstrate a special type of tension fixture that is most commonly used for testing wire. We use cookies to improve your browsing experience.

These include the lower plateau strength, upper pleateau strength, and the residual elongation. This article f251 provide a brief overview of the test as well as recommend the perfect grip for a successful tensile test. For thicker diameter wire, we recommend using 5kN pneumatic side action grips with serrated faces.


ASTM F – Nitinol Tension Testing

The accompanying video only shows the final portion of the test. For thinner diameter wire, we recommend using pneumatic cord and yarn grips. After that initial flexion the specimen is then pulled again until failure.

Zstm are several types of grips that may be used to test Nitinol. Subscribe to Instron News! The F procedure involves tensioning the sample initially and then bringing it back down.

They are designed with standard and optional features that increase testing efficiency and improve the testing experience for the operator. Pneumatic cord and yarn grips provide selectable clamping force to accommodate different materials and excellent follow-up action which compensates for decay of the holding force due to f25166 creep. Check this box to receive pertinent commercial email from Instron focusing on products, upcoming events, and more!

These unique properties make it very useful in a host of other applications including kidney stone astj baskets, eye glass frames, and micro antennas. This allows hands-free grip operation enabling the specimen to be held with both hands, for easy loading. Description Literature Contact Us Nitinol is a shape memory, super-elastic alloy that is used extensively in the biomedical industry.

ASTM F2516-14 Tensile Testing Nitinol Wire

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