{"id":688,"date":"2019-01-14T14:21:43","date_gmt":"2019-01-14T14:21:43","guid":{"rendered":"http:\/\/johnbrear-plantintegrity.com\/?page_id=688"},"modified":"2019-01-14T15:12:01","modified_gmt":"2019-01-14T15:12:01","slug":"elimination-of-reheat-cracking","status":"publish","type":"page","link":"https:\/\/johnbrear-plantintegrity.com\/?page_id=688","title":{"rendered":"Elimination of reheat cracking"},"content":{"rendered":"<figure id=\"attachment_689\" aria-describedby=\"caption-attachment-689\" style=\"width: 385px\" class=\"wp-caption alignright\"><img fetchpriority=\"high\" decoding=\"async\" src=\"http:\/\/johnbrear-plantintegrity.com\/wp-content\/uploads\/2019\/01\/weldcrack.jpg\" alt=\"\" width=\"385\" height=\"300\" class=\"size-full wp-image-689\" srcset=\"https:\/\/johnbrear-plantintegrity.com\/wp-content\/uploads\/2019\/01\/weldcrack.jpg 479w, https:\/\/johnbrear-plantintegrity.com\/wp-content\/uploads\/2019\/01\/weldcrack-300x233.jpg 300w\" sizes=\"(max-width: 385px) 100vw, 385px\" \/><figcaption id=\"caption-attachment-689\" class=\"wp-caption-text\">Reheat crack in 2.25CrMo repair weld<\/figcaption><\/figure>\r\n<p><strong>Component:<\/strong><\/p>\r\n<ul>\r\n    <li>\u00bdCrMoV main steam pipework and related components, welded with 2\u00bcCrMo<\/li>\r\n<\/ul>\r\n<p><strong>Objective:<\/strong><\/p>\r\n<ul>\r\n    <li>Minimisation of the risk of reheat cracking, by identification of the controlling factors<\/li>\r\n<\/ul>\r\n<p><strong>Approach:<\/strong><\/p>\r\n<ul>\r\n    <li>Review of service experience<\/li>\r\n    <li>Inter-laboratory investigation of weld geometry, weld procedure and materials composition, including modelling and mechanical testing<\/li>\r\n<\/ul>\r\n<h4><figure id=\"attachment_693\" aria-describedby=\"caption-attachment-693\" style=\"width: 385px\" class=\"wp-caption alignright\"><img decoding=\"async\" src=\"http:\/\/johnbrear-plantintegrity.com\/wp-content\/uploads\/2019\/01\/Type-3-crack.jpg\" alt=\"\" width=\"385\" height=\"374\" class=\"size-full wp-image-693\" srcset=\"https:\/\/johnbrear-plantintegrity.com\/wp-content\/uploads\/2019\/01\/Type-3-crack.jpg 385w, https:\/\/johnbrear-plantintegrity.com\/wp-content\/uploads\/2019\/01\/Type-3-crack-300x291.jpg 300w\" sizes=\"(max-width: 385px) 100vw, 385px\" \/><figcaption id=\"caption-attachment-693\" class=\"wp-caption-text\">Reheat crack in a 0.5CrMoV pipe welded with 2.25CrMo<\/figcaption><\/figure><\/h4>\r\n<p><strong>Benefits:<\/strong><\/p>\r\n<ul>\r\n    <li>Revised specification of residual element levels, especially for critical components<\/li>\r\n    <li>Redesign of weld geometries, especially terminal welds<\/li>\r\n    <li>Modifications to welding procedures, including revised specification of consumables<\/li>\r\n<\/ul>\r\n<p><strong>Published:<\/strong><\/p>\r\n<p>Brear, J.M. <br \/>\r\n\u201cWeld life prediction \u2013 building on experience\u201d<br \/>\r\nInternational VDI Conference \u2018Alloys in Power Plant Technology\u2019, Berlin 11-12 November 2014<\/p>\r\n<p>Brear, J.M.<br \/>\r\n\u201cStress relief embrittlement - revisited\u201d<br \/>\r\nECCC Int Conf \u2018Creep and Fracture in High Temperature Components \u2013 design and life assessment\u2019 EMPA, Zurich, 21-23 April 2009<\/p>\r\n<p>Batte, D.A., Brear, J.M., Holdsworth, S.R., Myers, J. and Reynolds, P.E.<br \/>\r\n\u201cThe effects of residual elements and deoxidation practice on the mechanical properties and stress relief cracking susceptibility of \u00bd%CrMoV turbine castings\u201d<br \/>\r\nConf \u2018Residuals, Additives and Materials Properties\u2019, Royal Society, May 1978<br \/>\r\nPhil Trans R Soc, London, A295, 1980, pp.253-264<\/p>","protected":false},"excerpt":{"rendered":"<p>Component: \u00bdCrMoV main steam pipework and related components, welded with 2\u00bcCrMo Objective: Minimisation of the risk of reheat cracking, by identification of the controlling factors Approach: Review of service experience Inter-laboratory investigation of weld geometry, weld procedure and materials composition, including modelling and mechanical testing Benefits: Revised specification of residual element levels, especially for critical &hellip; <a href=\"https:\/\/johnbrear-plantintegrity.com\/?page_id=688\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Elimination of reheat cracking<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":167,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-688","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=\/wp\/v2\/pages\/688","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=688"}],"version-history":[{"count":5,"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=\/wp\/v2\/pages\/688\/revisions"}],"predecessor-version":[{"id":695,"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=\/wp\/v2\/pages\/688\/revisions\/695"}],"up":[{"embeddable":true,"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=\/wp\/v2\/pages\/167"}],"wp:attachment":[{"href":"https:\/\/johnbrear-plantintegrity.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=688"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}