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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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. Check this box to receive pertinent commercial email from Instron focusing on products, upcoming events, and more! WaveMatrix 2 for Dynamic Testing. It is well suited for applications involving plastics, metals, biomedical, composites, elastomers, and more.
This article will provide a brief overview of the test as well as recommend the perfect grip for a successful tensile test. Bluehill LE for Basic Testing.
Nitinol is a shape memory, super-elastic alloy that is used extensively in the biomedical industry. 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 specimen creep.
For wire with a diameter greater than 0. Nitinol Testing requires a thin strip of the material to be pulled in tension at a specified t2516.
Bluehill Universal Software is built from the ground-up for touch interaction and an intuitive user experience. Nitinol, also known as Nickel-Titanium, is a highly elastic metal that also has shape memory. Glossary of Materials Testing Terms. Both the AVE 2 and AutoX are capable of measuring strain in cyclic loading and to failure without damaging the Nitinol wire. Description Literature Contact Us Nitinol is a shape memory, super-elastic alloy that is used extensively in the biomedical industry.
The challenges of testing Nitinol wire to this standard are: For example, Nitinol is used in stents, dental wires, catheter guidewires, internal fracture fixation devices, and biopsy forceps.
This allows hands-free grip operation enabling the specimen to be held with both hands, for easy loading. For thinner diameter wire, we recommend using pneumatic cord and yarn grips. Accurate strain measurement 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: Users of previous versions of software such as Bluehill 2 and Bluehill 3 can easily upgrade to the newest version of Bluehill.
asym The F procedure involves tensioning the sample initially and then bringing it back down. The accompanying video only shows the final portion of the test.
ASTM F2516-14 Tensile Testing Nitinol Wire
Mechanical action wedge grips are the most common fixturehowever other types of grips may be used awtm well. Contact Us View Accessories Catalog. The AutoX is a high-resolution, long-travel automatic contacting extensometer. Onsite Training At Your Facility. Bluehill Universal Brochure Bluehill Universal Software is built from the ground-up for touch interaction and an intuitive user experience.
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ASTM F Tensile Testing of Nitinol Wire – Instron
These include the lower plateau strength, upper pleateau strength, and the residual elongation. After that initial flexion the specimen is then pulled again until failure. There are v2516 types of grips that may be used to test Nitinol. Email addresses can only contain letters, numbers and the following special characters: 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.
ASTM F – 07 Standard Test Method for Tension Testing of Nickel-Titanium Superelastic Materials
They are designed with standard and optional features that increase testing efficiency and improve the testing experience for the operator. How can we help you? Discover simpler and smarter testing with features such as pre-loaded test methods, QuickTest in seconds, enhanced data exporting: The clamping mechanism can be activated either automatically or through a foot switch.
Depending on the exact mix of Nickel-Titanium, a fixture like this may need to be used. Subscribe to Instron News!
Software for Series Systems. Email addresses must contain the symbol. ASTM Ast, covers the tension testing of Nitinol which is a material used to make stents in the biomedical industry.