{"id":112949,"date":"2024-07-22T08:32:34","date_gmt":"2024-07-22T06:32:34","guid":{"rendered":"https:\/\/www.linseis.com\/nicht-kategorisiert\/tahribatsiz-n-d-t-teknolojisi-ile-tane-bueyuemesi-hakkinda-gercek-zamanli-bilgi-lazer-ultrason\/"},"modified":"2026-01-23T11:11:16","modified_gmt":"2026-01-23T10:11:16","slug":"tahribatsiz-n-d-t-teknolojisi-ile-tane-bueyuemesi-hakkinda-gercek-zamanli-bilgi-lazer-ultrason","status":"publish","type":"post","link":"https:\/\/www.linseis.com\/tr\/bilgi\/tahribatsiz-n-d-t-teknolojisi-ile-tane-bueyuemesi-hakkinda-gercek-zamanli-bilgi-lazer-ultrason\/","title":{"rendered":"Tahribats\u0131z N D T teknolojisi ile tane b\u00fcy\u00fcmesi hakk\u0131nda ger\u00e7ek zamanl\u0131 bilgi Lazer ultrason"},"content":{"rendered":"\t\t
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Linseis Messger\u00e4te GmbH ile i\u015fbirli\u011fi i\u00e7inde ve RECENDT GmbH (Research Centre for Non-Destructive Testing GmbH)<\/strong><\/a> dilatometre sistemi temelinde ger\u00e7ek zamanl\u0131 bir tane boyutu belirleme sistemi geli\u015ftirilmi\u015ftir (DIL L78<\/strong><\/a>) ve uyarlanm\u0131\u015f bir lazer-ultrasonik sistem (LUS)<\/strong><\/a> geli\u015ftirildi.<\/p>

Tane boyutu LUS verilerinden a\u015fa\u011f\u0131daki \u015fekilde belirlenir:<\/p>

Tahribats\u0131z NDT teknolojisi “Lazer Ultrason” (LUS), uygulanan metodolojide esas olarak tane s\u0131n\u0131rlar\u0131ndaki sa\u00e7\u0131lman\u0131n neden oldu\u011fu frekansa ba\u011fl\u0131 ultrasonik zay\u0131flaman\u0131n \ud835\udefc(\ud835\udc53) de\u011ferlendirilmesine dayal\u0131 olarak tane boyutunun yerinde analiz edilmesini sa\u011flar.<\/p>

Bu frekansa ba\u011fl\u0131 ultrasonik zay\u0131flama a\u015fa\u011f\u0131daki \u00fcstel fonksiyon kullan\u0131larak modellenir:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\ud835\udefc(\ud835\udc53)=\ud835\udc4e+\ud835\udc4f\ud835\udc53\ud835\udc5b<\/b><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Burada, \ud835\udefc(\ud835\udc53) bir so\u011furma katsay\u0131s\u0131 \ud835\udc4e, bir sa\u00e7\u0131lma katsay\u0131s\u0131 \ud835\udc4f, frekans \ud835\udc53 ve \u00fcs \ud835\udc5b’den olu\u015fur; so\u011furma katsay\u0131s\u0131 i\u00e7 s\u00fcrt\u00fcnme kay\u0131plar\u0131n\u0131 tan\u0131mlar ve sa\u00e7\u0131lma katsay\u0131s\u0131 ilgin\u00e7 tane boyutu parametresidir (ortalama tane boyutuyla orant\u0131l\u0131d\u0131r).<\/p>

\ud835\udc5b \u00fcss\u00fc, akustik dalga boyunun ortalama tane boyutuna oran\u0131ndan kaynaklan\u0131r ve bu nedenle genellikle \u00fc\u00e7 t\u00fcr sa\u00e7\u0131lma ay\u0131rt edilir: Rayleigh (\ud835\udc5b=4), stokastik (\ud835\udc5b=2) ve geometrik (\ud835\udc5b=0) sa\u00e7\u0131lma [1].<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\nSa\u00e7\u0131lma katsay\u0131s\u0131 ile ilgilenilen tane boyutu \ud835\udc37 aras\u0131ndaki ili\u015fki a\u015fa\u011f\u0131daki gibi modellenir:\n\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\ud835\udefc(\ud835\udc53)=\ud835\udc4e+\ud835\udc36 (\ud835\udc37-\ud835\udc370)\ud835\udc5b-1 \ud835\udc53\ud835\udc5b<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Malzemeye ba\u011fl\u0131 parametre \ud835\udc36 ile ortalama tane boyutundaki \ud835\udc37-\ud835\udc370 (\ud835\udc370 – ilk durumdaki tane boyutu) ba\u011f\u0131l de\u011fi\u015fimin \u00e7arp\u0131m\u0131 burada sa\u00e7\u0131lma katsay\u0131s\u0131 \ud835\udc4f i\u00e7in kullan\u0131l\u0131r. Belirli s\u0131cakl\u0131k ko\u015fullar\u0131nda mikrograflardan elde edilen ortalama tane boyutu de\u011ferleri kullan\u0131larak modelin kalibrasyonu \ud835\udc36 parametresini sa\u011flar [2].

Bu zay\u0131flama modelini kullanan lazer ultrasonik \u00f6l\u00e7\u00fcmler ve veri analizi, termal d\u00f6ng\u00fcler s\u0131ras\u0131nda bir malzemenin tane b\u00fcy\u00fcmesine ili\u015fkin ger\u00e7ek zamanl\u0131 (yerinde) bir i\u00e7g\u00f6r\u00fc sa\u011flar. \u015eekil 2, bu ger\u00e7ek zamanl\u0131 LUS sonu\u00e7lar\u0131n\u0131n (noktalar) zaman alan mikrograf analizleriyle (renkli \u00d7 i\u015faretleri) etkileyici bir kar\u015f\u0131la\u015ft\u0131rmas\u0131n\u0131 g\u00f6stermektedir. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Ger\u00e7ek zamanl\u0131 lazer-ultrasonik tane boyutu hesaplamalar\u0131n\u0131n (noktalar) su verilmi\u015f ve temperlenmi\u015f C45E \u00e7eli\u011finin su verilmi\u015f \u00f6rneklerinin (renkli x i\u015faretleri) mikrograf analizleri ile kar\u015f\u0131la\u015ft\u0131r\u0131lmas\u0131<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Kaynaklar:\n\n<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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[1] S. Sarkar, A. Moreau, M. Militzer ve W. J. Poole, “Evolution of austenite recrystallisation and grain growth using laser ultrasonics,” Metall. Mater. Trans. A Phys. Metall. Mater. Sci., vol. 39 A, no. 4, pp. 897-907, 2008, doi: 10.1007\/s11661-007-9461-6<\/strong><\/a>.<\/p>

[2] T. Garcin, J. H. Schmitt, and M. Militzer, “In-situ laser ultrasonic grain size measurement in superalloy INCONEL 718,” J. Alloys Compd., vol. 670, pp. 329-336, 2016, doi: 10.1016\/j.jallcom.2016.01.222<\/strong><\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

Linseis Messger\u00e4te GmbH ve RECENDT GmbH (Research Center for Non-Destructive Testing GmbH) aras\u0131ndaki i\u015fbirli\u011fiyle, bir dilatometre sistemi (DIL L78\/RITA) ve uyarlanm\u0131\u015f bir lazer-ultrasonik sistem (LUS) temelinde ger\u00e7ek zamanl\u0131 bir tane boyutu belirleme sistemi geli\u015ftirilmi\u015ftir.<\/p>\n","protected":false},"author":3,"featured_media":112950,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[754],"tags":[],"class_list":["post-112949","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bilgi"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.linseis.com\/tr\/wp-json\/wp\/v2\/posts\/112949","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.linseis.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.linseis.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.linseis.com\/tr\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.linseis.com\/tr\/wp-json\/wp\/v2\/comments?post=112949"}],"version-history":[{"count":0,"href":"https:\/\/www.linseis.com\/tr\/wp-json\/wp\/v2\/posts\/112949\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.linseis.com\/tr\/wp-json\/wp\/v2\/media\/112950"}],"wp:attachment":[{"href":"https:\/\/www.linseis.com\/tr\/wp-json\/wp\/v2\/media?parent=112949"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.linseis.com\/tr\/wp-json\/wp\/v2\/categories?post=112949"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.linseis.com\/tr\/wp-json\/wp\/v2\/tags?post=112949"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}