{"id":540856,"date":"2018-10-31T05:15:26","date_gmt":"2018-10-31T09:15:26","guid":{"rendered":"https:\/\/ntrs.nasa.gov\/search.jsp?R=20180006710"},"modified":"2018-10-31T05:15:26","modified_gmt":"2018-10-31T09:15:26","slug":"toughness-testing-for-liquid-hydrogen-and-helium-temperatures-validation-of-austenitic-stainless-steels-for-4k-452f-use-stub","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=540856","title":{"rendered":"Toughness Testing for Liquid Hydrogen And Helium Temperatures &#8211; Validation of Austenitic Stainless Steels for 4K (-452F) Use [STUB]"},"content":{"rendered":"<p>Abstract: This presentation is an Existing Code Requirement: Charpy impact test at a temperature no higher than the design minimum temperature. The Current Practice: is not clear, the indications are that testing is sometimes performed at -320F (liquid nitrogen or &#8220;LN2&#8221;) for that and all lower temperatures. In some cases testing is probably not performed and CGA indicated successful operation of systems at -453F without required test. The Ballot activity: C&#038;S Connect Record 13-341, Ballot 13-1746, init&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Abstract: This presentation is an Existing Code Requirement: Charpy impact test at a temperature no higher than the design minimum temperature. The Current Practice: is not clear, the indications are that testing is sometimes performed at -320F (liquid nitrogen or &#8220;LN2&#8221;) for that and all lower temperatures. In some cases testing is probably not performed and CGA indicated successful operation of systems at -453F without required test. The Ballot activity: C&amp;S Connect Record 13-341, Ballot 13-1746, init&#8230;<\/p>\n","protected":false},"author":60,"featured_media":615444,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-540856","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/540856","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/users\/60"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=540856"}],"version-history":[{"count":1,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/540856\/revisions"}],"predecessor-version":[{"id":540857,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/540856\/revisions\/540857"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/615444"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=540856"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=540856"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=540856"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}