Shenzhen Wuge Industrial Co., Ltd

The development process of nickel titanium memory alloys can be roughly divided into the following stages:

Early discovery and preliminary research stage (1932-1968)

In 1932, Swede Oland first observed the "memory" effect in gold cadmium alloys, but it did not receive widespread attention at the time.

In 1963, Biller from the US Naval Ordnance Research Institute discovered in his research that nickel titanium alloy wire had shape memory properties. When the temperature reached a certain value, the straightened alloy wire would magically return to its original shape.

In 1969, the "shape memory effect" of nickel titanium alloy was first applied in industry for the production of pipeline joints. In the same year, American astronauts used hemispherical antennas made of nickel titanium alloy during the Apollo 11 lunar mission.

Basic Research and Engineering Application Development Stage (1970-1994)

In the early 1970s, Raychem Corporation of the United States successfully developed NiTiFe aviation hydraulic pipeline joints and fasteners, which were applied to the F14 fighter jet and became the first successful industrial application example of nickel titanium alloy.

From 1987 to 1994, researchers conducted in-depth and detailed research on the fundamental theory of nickel titanium alloys, including the self cooperative shape recovery mechanism of martensite, the influencing factors of linear hyperelasticity and nonlinear hyperelasticity, which led to the peak of nickel titanium alloy engineering.

Stage of New Technology Development and Performance Optimization (1995-2014)

After 1995, some new nickel titanium alloy processing technologies and fundamental theoretical issues emerged, such as surface modification technology, laser processing technology, and pulsating fatigue life testing of nickel titanium alloys.

During this period, the application of nickel titanium alloy in the medical field continued to expand, producing multiple implants such as covered vascular stents, esophageal stents, bone fixators, and cardiac occluders, which were widely used in clinical practice.

Innovation Breakthrough and Application Expansion Stage (2015 present)

In 2015, researchers from Kiel University in Germany invented a nickel titanium copper memory alloy, which can deform up to millions of times without breaking, greatly expanding the application fields of memory alloys.

In recent years, with the continuous advancement of technology, the application of nickel titanium memory alloys in microelectronics and optical devices, sensors, energy, aerospace and other fields has been constantly explored and expanded. New types of nickel titanium alloy materials such as nickel titanium alloy capillaries and bulk nanocrystalline nickel titanium alloys have also emerged.