ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Human Factors, Instrumentation & Controls
Improving task performance, system reliability, system and personnel safety, efficiency, and effectiveness are the division's main objectives. Its major areas of interest include task design, procedures, training, instrument and control layout and placement, stress control, anthropometrics, psychological input, and motivation.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
Latest Magazine Issues
Jul 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
August 2024
Nuclear Technology
Fusion Science and Technology
Latest News
BWXT will scout potential TRISO fuel production sites in Wyoming
BWX Technologies Inc. announced today that its Advanced Technologies subsidiary has signed a cooperation agreement with the state of Wyoming to evaluate locations and requirements for siting a potential new TRISO nuclear fuel fabrication facility in the state.
G. A. Ratz
Nuclear Technology | Volume 17 | Number 2 | February 1973 | Pages 153-159
Technical Paper | Material | doi.org/10.13182/NT73-A31242
Articles are hosted by Taylor and Francis Online.
The changes that occurred in composition, microstructure, and mechanical properties of a sample of welded AISI Type 304 stainless-steel pipe that had been exposed to liquid sodium for 21 000 h within the range 300 to 800°C have been determined. The results of the investigation showed that under the liquid-sodium service conditions studied, Type 304 steel pipe did not undergo any marked deleterious change in mechanical properties. The tensile strength of the exposed sample was above the minimum value specified by the ASTM for welded Type 304 steel pipe, whereas the yield strength was at the minimum value specified. The results of standard flattening tests on specimens from the exposed sample indicated that they could be flattened without cracking. However, a compositional change occurred on the inner surface of the pipe (the surface that had been exposed to the liquid sodium for 21 000 h). Nitrogen, sulfur, and sodium were absorbed, and a relatively brittle layer, ∼0.05 mm thick, was formed at the inner surface. Thus, when Type 304 steel is used for liquid-sodium service, sodium should be kept as free as possible of contaminants such as nitrogen and sulfur, in addition to oxygen.