{"id":2126,"date":"2021-04-06T09:07:28","date_gmt":"2021-04-06T09:07:28","guid":{"rendered":"https:\/\/wldstainless.com\/?p=2126"},"modified":"2021-04-06T09:09:30","modified_gmt":"2021-04-06T09:09:30","slug":"how-the-nitrogen-affect-316ln-stainless-steel","status":"publish","type":"post","link":"https:\/\/wldstainless.com\/tr\/how-the-nitrogen-affect-316ln-stainless-steel\/","title":{"rendered":"Azot 316LN paslanmaz \u00e7eli\u011fi nas\u0131l etkiler?"},"content":{"rendered":"

316LN, Nitrojen ekleme versiyonudur. 316L \u00e7elik<\/a> (0.06% ~ 0.08%), 316L ile ayn\u0131 \u00f6zelliklere sahip olmas\u0131 nedeniyle h\u0131zl\u0131 \u00fcreme reakt\u00f6r\u00fcnde (FBRS) y\u00fcksek s\u0131cakl\u0131ktaki yap\u0131sal bile\u015fenlerin \u00fcretiminde kullan\u0131lm\u0131\u015ft\u0131r. Karbon i\u00e7eri\u011finin azalt\u0131lmas\u0131, daha sonraki korozif ortamlarda kaynak yap\u0131lmas\u0131 nedeniyle stres korozyonu \u00e7atlamas\u0131na duyarl\u0131l\u0131\u011f\u0131 b\u00fcy\u00fck \u00f6l\u00e7\u00fcde azalt\u0131r. S\u00fcr\u00fcnme, d\u00fc\u015f\u00fck \u00e7evrimli yorulma ve s\u00fcr\u00fcnme-yorulma etkile\u015fimi, FBRS bile\u015fenleri i\u00e7in en \u00f6nemli hususlard\u0131r. Y\u00fcksek s\u0131cakl\u0131k dayan\u0131m\u0131 316L paslanmaz \u00e7elik<\/a> 0.06% ~ 0.08% N ala\u015f\u0131m\u0131 kullan\u0131larak 316 paslanmaz \u00e7eli\u011fe geli\u015ftirilebilir. 0.08%'den y\u00fcksek nitrojen i\u00e7eri\u011finin, y\u00fcksek s\u0131cakl\u0131kta 316L paslanmaz \u00e7eli\u011fin mekanik \u00f6zellikleri \u00fczerindeki etkisi bu yaz\u0131da tart\u0131\u015f\u0131lacakt\u0131r.<\/p>\n

 <\/p>\n

316LN paslanmaz \u00e7eli\u011fin kimyasal bile\u015fimi<\/strong><\/p>\n\n\n\n\n\n\n\n\n
F\u0131r\u0131n<\/td>\nN<\/td>\nC<\/td>\nMn<\/td>\nCR<\/td>\nAy<\/td>\nNi<\/td>\nSi<\/td>\nS<\/td>\nP<\/td>\nFe<\/td>\n<\/tr>\n
Standartlar<\/td>\n0.06-0.22<\/td>\n0.02-0.03<\/td>\n1.6-2.0<\/td>\n17-18<\/td>\n2.3-2.5<\/td>\n12.0-12.5<\/td>\n\u22640,5<\/td>\n\u22640,01<\/td>\n\u22640,03<\/td>\n–<\/td>\n<\/tr>\n
1<\/td>\n0.07<\/td>\n0.027<\/td>\n1,7<\/td>\n17.53<\/td>\n2.49<\/td>\n12.2<\/td>\n0.22<\/td>\n0.0055<\/td>\n0.013<\/td>\n–<\/td>\n<\/tr>\n
2<\/td>\n0.11<\/td>\n0.033<\/td>\n1.78<\/td>\n17.63<\/td>\n2.51<\/td>\n12.27<\/td>\n0.21<\/td>\n0.0055<\/td>\n0.015<\/td>\n–<\/td>\n<\/tr>\n
3<\/td>\n0.14<\/td>\n0.025<\/td>\n1.74<\/td>\n17.57<\/td>\n2.53<\/td>\n12.15<\/td>\n0.20<\/td>\n0.0041<\/td>\n0.017<\/td>\n–<\/td>\n<\/tr>\n
4<\/td>\n0.22<\/td>\n0.028<\/td>\n1.70<\/td>\n17.57<\/td>\n2.54<\/td>\n12.36<\/td>\n0.20<\/td>\n0.0055<\/td>\n0.018<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Nitrojen i\u00e7eri\u011fi 0,07%, 0,11%, 0,14% ve 0,22% ve karbon i\u00e7eri\u011fi 0,03% olan bu d\u00f6rt grup 316LN paslanmaz \u00e7elik, nitrojenin \u00e7ekme, s\u00fcnme, d\u00fc\u015f\u00fck d\u00f6ng\u00fcl\u00fc yorulma ve s\u00fcnme \u00fczerindeki etkilerini incelemek i\u00e7in test edildi -316LN paslanmaz \u00e7eli\u011fin yorulma \u00f6zellikleri. Bu deneyin amac\u0131 \u00e7ekme, s\u00fcr\u00fcnme ve d\u00fc\u015f\u00fck \u00e7evrimli yorulma \u00f6zelliklerinin en iyi kombinasyonunu elde etmek i\u00e7in optimum nitrojen i\u00e7eri\u011fini bulmakt\u0131r. Deneysel sonu\u00e7lar, nitrojenin \u00f6stenitik paslanmaz \u00e7eliklerin \u00e7ekme mukavemetini, s\u00fcnme ve yorulma mukavemetini art\u0131rabildi\u011fini g\u00f6stermektedir. Mukavemetteki art\u0131\u015f\u0131n nedenleri aras\u0131nda \u00e7\u00f6zelti iyile\u015ftirmesi, azalt\u0131lm\u0131\u015f istifleme hatas\u0131 enerjisi (SFE), \u00e7\u00f6kelme sertle\u015fmesi, kompozitlerin olu\u015fumu (arayer \u00e7\u00f6z\u00fcnen maddeler), atomik ayr\u0131\u015fma ve s\u0131ral\u0131 sertle\u015fme yer al\u0131r. Farkl\u0131 elektron de\u011fi\u015fim \u00f6zelliklerinden dolay\u0131 \u00f6stenitik paslanmaz \u00e7elikteki \u00e7\u00f6z\u00fcnm\u00fc\u015f nitrojen, karbondan daha b\u00fcy\u00fck bir genle\u015fme hacmine sahiptir.<\/p>\n

Azot ve dislokasyon aras\u0131ndaki elastik etkile\u015fime ek olarak, elektrostatik interstisyel dislokasyon etkile\u015fimi de mukavemeti etkiler. Dislokasyon \u00e7ekirdekleri, serbest elektronlar\u0131n eksikli\u011fi ile karakterize edilir, bu da pozitif y\u00fcke sahip olduklar\u0131 anlam\u0131na gelir. \u00d6stenitik paslanmaz \u00e7eliklerdeki nitrojen atomlar\u0131, serbest elektronlar\u0131n nitrojen atomlar\u0131n\u0131n yak\u0131n\u0131ndaki konumu ve dislokasyonlar ile nitrojen atomlar\u0131 aras\u0131ndaki elektrostatik etkile\u015fim nedeniyle negatif y\u00fckl\u00fcd\u00fcr.<\/p>\n

Nitrojen atomu ile dislokasyon aras\u0131ndaki etkili ba\u011flanma enerjisi, Ostenitik \u00e7elikteki nitrojen i\u00e7eri\u011finin artmas\u0131yla artar, ancak karbon i\u00e7in korelasyon a\u00e7\u0131k de\u011fildir. \u00d6stenitik \u00e7eliklerde, ara yer nitrojen, ikame edici elementlerle etkile\u015fime girer ve ara yer de\u011fi\u015ftirici atomik bile\u015fimler olu\u015fturma e\u011filimindedir. Bile\u015fik, periyodik tabloda Fe'nin solundaki Mn, Cr, Ti ve V gibi elementlere kolayca ba\u011flan\u0131r. Atomlar aras\u0131 ba\u011f\u0131n \u00f6zellikleri (yani y\u00f6nelime kar\u015f\u0131 y\u00f6nelimsizlik) ile biti\u015fik atomlar\u0131n yak\u0131nl\u0131\u011f\u0131 aras\u0131nda g\u00fc\u00e7l\u00fc bir korelasyon vard\u0131r. \u00c7ok bile\u015fenli bir ala\u015f\u0131m sistemindeki atomlar. Metal atomlar\u0131 aras\u0131ndaki ba\u011flanma, farkl\u0131 elementlerin atomlar\u0131n\u0131n ba\u011flanmas\u0131 olan k\u0131sa mesafeli s\u0131ralamay\u0131 kolayla\u015ft\u0131r\u0131r. Atomlar aras\u0131 polarizasyon, ayn\u0131 elementin atomlar\u0131 aras\u0131ndaki ba\u011f olan kovalent elektronlar\u0131n de\u011fi\u015fimini kolayla\u015ft\u0131r\u0131r. Karbon, demir bazl\u0131 kat\u0131 \u00e7\u00f6zeltide ikame atomlar\u0131n\u0131n toplanmas\u0131n\u0131 te\u015fvik ederken, nitrojen k\u0131sa mesafeli d\u00fczenlemeyi kolayla\u015ft\u0131r\u0131r.<\/p>\n

Genel olarak akma dayan\u0131m\u0131 (YS) ve nihai \u00e7ekme dayan\u0131m\u0131 (UTS) 316L<\/a> paslanmaz \u00e7elik, 0.07% ~ 0.22% nitrojenin ala\u015f\u0131mlanmas\u0131yla \u00f6nemli \u00f6l\u00e7\u00fcde iyile\u015ftirilir. 300 ~ 1123K s\u0131cakl\u0131k aral\u0131\u011f\u0131nda t\u00fcm testlerde mukavemet art\u0131\u015f\u0131 g\u00f6zlendi. S\u0131n\u0131rl\u0131 bir s\u0131cakl\u0131k aral\u0131\u011f\u0131nda dinamik gerinim ya\u015flanmas\u0131 g\u00f6zlemlendi. Dinamik gerinim ya\u015flanmas\u0131n\u0131n (DSA) s\u0131cakl\u0131k aral\u0131\u011f\u0131 nitrojen i\u00e7eri\u011finin artmas\u0131yla azal\u0131r.<\/p>\n

 <\/p>","protected":false},"excerpt":{"rendered":"

316LN, 316L \u00e7eli\u011fe (0.06% ~ 0.08%) dayanan Azot ilaveli versiyonudur, dolay\u0131s\u0131yla 316L ile ayn\u0131 \u00f6zelliklere sahiptir ve h\u0131zl\u0131 \u00fcreme reakt\u00f6r\u00fcnde (FBRS) y\u00fcksek s\u0131cakl\u0131ktaki yap\u0131sal bile\u015fenlerin \u00fcretiminde kullan\u0131lm\u0131\u015ft\u0131r. Karbon i\u00e7eri\u011finin azalt\u0131lmas\u0131, sonraki korozif i\u015flemlerde kaynak nedeniyle stresli korozyon \u00e7atlamas\u0131na kar\u015f\u0131 hassasiyeti b\u00fcy\u00fck \u00f6l\u00e7\u00fcde azalt\u0131r.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2126","post","type-post","status-publish","format-standard","hentry","category-social-activities"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/posts\/2126","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/comments?post=2126"}],"version-history":[{"count":3,"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/posts\/2126\/revisions"}],"predecessor-version":[{"id":2129,"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/posts\/2126\/revisions\/2129"}],"wp:attachment":[{"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/media?parent=2126"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/categories?post=2126"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/tags?post=2126"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}