What is Nitinol alloy? Nitinol alloy is one of many shape memory alloys (SMA) which can restore its original shape after deformation. SMA is used in various applications, from consumer electronics to automotive, aerospace, and medical industries. Because they provide designers with incredible flexibility to replace traditional materials, they have gained a strong foothold. Nitinol alloy is popular in medical devices because of its biocompatibility and superelasticity. Nitinol alloy is used to manufacture brackets, guide wires, stone baskets, filters, needles, dental files, and other surgical instruments.
Development history of Nitinol alloy In 1958, William J. Buehler and Frederick Wang of the United States Naval Laboratory [2] invented a group of engineering alloys with a unique shape memory effect (also known as mechanical memory), namely Ni-Ti shape memory alloy, and named Nitinol alloy. Nitinol alloy refers to the general term of NiTi alloys with nearly equal atomic weight. The n-o-l after the word is the United States Naval Weapons Laboratory code. Because this laboratory is the inventor of this kind of alloy, it is named Nitinol alloy. The most commonly used representative alloy in the Nitinol series is the 55-Ntinol alloy. This kind of alloy usually has a composition range of 53~57 (weight)% Ni; the remainder is Ti, a TiNi intermetallic compound.
Characteristics of Nitinol alloy Superelasticity refers to the phenomenon that the strain produced by the specimen under the action of external force is far greater than the elastic limit strain, and the strain can recover automatically when unloading. In the parent phase state, due to the effect of external stress, the stress-induced martensitic transformation occurs, so the alloy shows different mechanical behavior from ordinary materials, its elastic limit is far greater than ordinary materials, and it no longer complies with Hooke's law. Compared with shape memory properties, hyperelasticity has no thermal involvement. Hyperelasticity means that the stress does not increase with the increase of strain within a certain deformation range. Hyperelasticity can be divided into linear hyperelasticity and nonlinear hyperelasticity. The stress-strain curve of the former has a close linear relationship between stress and strain. Nonlinear hyperelasticity refers to the results of stress-induced martensitic transformation and its inverse transformation during loading and unloading in a certain temperature range above Af. Therefore, nonlinear hyperelasticity is also called transformation pseudoelasticity. The pseudoelasticity of phase transformation of Ni-Ti alloy can reach about 8%. The superelasticity of nickel-titanium alloy can change with heat treatment conditions; Above C, hyperelasticity begins to decline.
Price of nitinol alloy Nitinol alloy particle size and purity will affect the product's Price, and the purchase volume can also affect the cost of nitinol alloy. A large amount of large amount will be lower. The Price of nitinol alloy can be found on our company's official website.
Nitinol alloy supplier Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including nitinol alloy, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective nitinol alloy, you are welcome tocontact us or inquire at any time.
