The effect of hydrogen on aluminum alloys can manifest itself in a phenomenon known as high-temperature oxidation (HTO), also known as high-temperature deterioration (HTD). A case study involving 2024 and 7075 aluminum aerospace fasteners in which hydrogen-induced damage was found after solution heat-treatment and aging operations serves as an excellent example.
When a component part fails, it is only natural to ask why and then strive to determine the root cause. Gathering all possible information about the damage event and performing a thorough failure analysis is a critical first step in the process.
Our discussion of thermocouples continues with more practical advice and a deeper understanding into how to install and maintain thermocouples so as to control the heart of any thermal-processing system. Let’s learn more.
Accurate temperature control of heat-treating furnaces, ovens and baths depends in large part on the proper choice of thermocouples as well as on ancillary items such as extension (lead) wire, protection tubes and connectors.