Automotive Residual Stress can be of great importance to the automotive industry. By keeping track of the residual stresses in various automobile components, it is possible to monitor the physical integrity of the part and potentially prevent catastrophic failure. By tracking the residual stresses in automobile parts, it is possible to determine whether a steering knuckle is likely to succumb to stress corrosion cracking or how resistant a suspension spring is to fatigue failure. Material Testing’s nondestructive techniques can quickly and easily provide a direct measurement of the residual stress state of a variety of elements where it may be of concern. Several examples include: Steering knuckles, axles, wheel hubs, suspension springs, pistons, etc. All residual stress measurements are done in accordance with ASTM E915, ASTM E2860, and SAE HS-784.

Retained austenite is also significant for many automotive applications where tight dimensional tolerances are critical. These parts must typically conform to specifications citing a specific range of retained austenite amount to prevent failures due to volume-related phase change. The Materials Testing Division uses reflections from four distinct sets of atomic planes to provide a fast and accurate determination of the austenite content in a steel part. Several examples include: Bearing components (roller elements, raceways), gears, springs, etc. All retained austenite measurements are done in accordance with ASTM E975, and SAE SP-453.

A Reputation for Knowledge and Customer Service
At TEC Materials Testing, we have dedicated ourselves to improving the quality of manufactured products through the application of advanced scientific methods in our products and services.

Since 1982, TEC has designed and manufactured x-ray diffraction (XRD) systems to provide superior testing of metal and ceramic commercial engineering components. One thing our customers know about TEC Materials Testing is that our systems and services have set an industry standard for residual stress and retained austenite measurements.

Our decades of work with manufacturers across a wide range of industries have given us unparalleled knowledge of and experience in stress analysis applications. We understand how important it is that your components are built to endure even the most extreme environments. Our use of the latest technologies and mastery of current analysis techniques make us the natural choice for your materials testing needs.

Technology You Can Rely On
Our products are built for faster, more convenient testing in the field and in the lab. Our x-ray diffraction solutions, which have been in continuous use throughout the world for more than 30 years, are engineered to be compact and portable, delivering results at the speed you need. Serving the automotive, aerospace, power generation, infrastructure, medical components and heavy machinery industries, we provide assistance on site or from our Knoxville, TN-based laboratory, where our A2LA-accredited lab (1033.01) provides mechanical testing that meets the requirements of ISO-IEC 17025:2017. All testing is done in accordance with ASTM and SAE standards.

Our team of engineers and qualified staff, having more than 75 years of combined experience and are eager to meet your measurement needs guaranteeing rapid results. Today we are the knowledge leader and trusted partner to industrial customers providing simple solutions to complex materials testing problems across a variety of industries worldwide.