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Conference Spotlight
2026 Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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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!
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Latest News
What’s the most difficult question you’ve been asked as a maintenance instructor?
Blye Widmar
"Where are the prints?!"
This was the final question in an onslaught of verbal feedback, comments, and critiques I received from my students back in 2019. I had two years of instructor experience and was teaching a class that had been meticulously rehearsed in preparation for an accreditation visit. I knew the training material well and transferred that knowledge effectively enough for all the students to pass the class. As we wrapped up, I asked the students how they felt about my first big system-level class, and they did not hold back.
“Why was the exam from memory when we don’t work from memory in the plant?” “Why didn’t we refer to the vendor documents?” “Why didn’t we practice more on the mock-up?” And so on.
Kunihiko Satoh, Masao Toyoda, Shigetomo Matsui, Eisuke Mori, Shigeki Shimizu, Keisuke Satoh
Nuclear Technology | Volume 55 | Number 2 | November 1981 | Pages 479-486
Technical Paper | Materials | doi.org/10.13182/NT55-479
Articles are hosted by Taylor and Francis Online.
Hastelloy X electron beam (EB) weld metal shows higher creep rate and slightly lower rupture strength, and the tungsten inert gas (TIG) weld metal shows remarkably lower creep rate and rupture strength as compared with the base metal. Creep behavior for welded joint is determined mainly by the relation between the welding direction and the loading one, the creep rupture times, and the secondary creep rates of base and weld metal. In applying TIG and EB welding to joints of the shell or tubes, there are few problems for EB welding, but for TIG welding it is necessary to improve the weld metal.
