{"id":4183,"date":"2015-03-11T02:29:04","date_gmt":"2015-03-11T02:29:04","guid":{"rendered":"http:\/\/lib.itenas.ac.id\/kti\/?p=4183"},"modified":"2016-02-16T06:37:59","modified_gmt":"2016-02-16T06:37:59","slug":"crack-of-a-first-stage-blade-in-a-steam-turbine-2","status":"publish","type":"post","link":"https:\/\/lib.itenas.ac.id\/kti\/?p=4183","title":{"rendered":"Crack of a first stage blade in a steam turbine"},"content":{"rendered":"<p>The failure of the first stage blade in a steam turbine of 55\u00a0MW was investigated. The blade was made of 17-4 PH stainless steel and has been used for 12 years before failure. The current work aims to find out the main cause of the first stage blade failure. The methods for investigation were metallurgical analysis, chemical composition test, and hardness measurement. The result showed that there was no evidence the blade failure was due to material. The damage found on the blade namely crack on the blade root. Two locations of the crack observed at the blade root, which was at the tang and the fillet, with different failure modes. In general, the damage of the blade was started by the corrosion occurred on the blade root. The crack at the blade root tang was due to corrosion fatigue and the crack occurred at the blade root fillet owing to stress corrosion cracking.<\/p>\n<p>Dibuat oleh :\u00a0Meilinda Nurbanasari, \u00a0Abdurrachim<\/p>\n<p>E-mail:\u00a0 meilinda@itenas.ac.id<\/p>\n<p>Kata Kunci : Tang, Fillet, Blade, Corrosion fatigue, Stress corrosion cracking<\/p>\n<p>Keterangan : \u00a0Makalah ini\u00a0 dimuat pada \u00a0Case Studies in Engineering Failure Analysis Volume 2, Issue 2, Pages 51-174 (October 2014)<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"http:\/\/www.sciencedirect.com\/science\/article\/pii\/S2213290214000042\/pdfft?md5=01447e5869d57ca019e75a1e3e3242c7&#038;pid=1-s2.0-S2213290214000042-main.pdf\">Crack of a first stage blade in a steam turbine<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The failure of the first stage blade in a steam turbine of 55\u00a0MW was investigated. The blade was made of 17-4 PH stainless steel and has been used for 12 years before failure. The current work aims to find out the main cause of the first stage blade failure. The methods for investigation were metallurgical [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,4],"tags":[1704,1705,1703,1706,1702],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Crack of a first stage blade in a steam turbine - Karya Tulis Ilmiah Itenas<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lib.itenas.ac.id\/kti\/?p=4183\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Crack of a first stage blade in a steam turbine - Karya Tulis Ilmiah Itenas\" \/>\n<meta property=\"og:description\" content=\"The failure of the first stage blade in a steam turbine of 55\u00a0MW was investigated. The blade was made of 17-4 PH stainless steel and has been used for 12 years before failure. The current work aims to find out the main cause of the first stage blade failure. The methods for investigation were metallurgical [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lib.itenas.ac.id\/kti\/?p=4183\" \/>\n<meta property=\"og:site_name\" content=\"Karya Tulis Ilmiah Itenas\" \/>\n<meta property=\"article:published_time\" content=\"2015-03-11T02:29:04+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2016-02-16T06:37:59+00:00\" \/>\n<meta name=\"author\" content=\"Asep Kamaludin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Asep Kamaludin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/lib.itenas.ac.id\/kti\/?p=4183\",\"url\":\"https:\/\/lib.itenas.ac.id\/kti\/?p=4183\",\"name\":\"Crack of a first stage blade in a steam turbine - Karya Tulis Ilmiah Itenas\",\"isPartOf\":{\"@id\":\"https:\/\/lib.itenas.ac.id\/kti\/#website\"},\"datePublished\":\"2015-03-11T02:29:04+00:00\",\"dateModified\":\"2016-02-16T06:37:59+00:00\",\"author\":{\"@id\":\"https:\/\/lib.itenas.ac.id\/kti\/#\/schema\/person\/f3b1ab90b912c959a933991c65c59fc9\"},\"breadcrumb\":{\"@id\":\"https:\/\/lib.itenas.ac.id\/kti\/?p=4183#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/lib.itenas.ac.id\/kti\/?p=4183\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/lib.itenas.ac.id\/kti\/?p=4183#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/lib.itenas.ac.id\/kti\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Crack of a first stage blade in a steam turbine\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/lib.itenas.ac.id\/kti\/#website\",\"url\":\"https:\/\/lib.itenas.ac.id\/kti\/\",\"name\":\"Karya Tulis Ilmiah Itenas\",\"description\":\"Karya Tulis Ilmiah Itenas\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/lib.itenas.ac.id\/kti\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/lib.itenas.ac.id\/kti\/#\/schema\/person\/f3b1ab90b912c959a933991c65c59fc9\",\"name\":\"Asep Kamaludin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/lib.itenas.ac.id\/kti\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/f3fff432f1af1e74180f39e33a202251?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/f3fff432f1af1e74180f39e33a202251?s=96&d=mm&r=g\",\"caption\":\"Asep Kamaludin\"},\"url\":\"https:\/\/lib.itenas.ac.id\/kti\/?author=6\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Crack of a first stage blade in a steam turbine - Karya Tulis Ilmiah Itenas","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/lib.itenas.ac.id\/kti\/?p=4183","og_locale":"en_US","og_type":"article","og_title":"Crack of a first stage blade in a steam turbine - Karya Tulis Ilmiah Itenas","og_description":"The failure of the first stage blade in a steam turbine of 55\u00a0MW was investigated. The blade was made of 17-4 PH stainless steel and has been used for 12 years before failure. The current work aims to find out the main cause of the first stage blade failure. 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