{"id":2187,"date":"2021-07-20T14:22:17","date_gmt":"2021-07-20T14:22:17","guid":{"rendered":"https:\/\/wldstainless.com\/?p=2187"},"modified":"2021-07-20T14:22:17","modified_gmt":"2021-07-20T14:22:17","slug":"austenitic-heat-resistant-stainless-steel","status":"publish","type":"post","link":"https:\/\/wldstainless.com\/tr\/austenitic-heat-resistant-stainless-steel\/","title":{"rendered":"\u00d6stenitik Is\u0131ya dayan\u0131kl\u0131 paslanmaz \u00e7elik"},"content":{"rendered":"<p>309 ve 310 paslanmaz \u00e7elik saclar, y\u00fcksek Cr ve Ni i\u00e7eri\u011fi ile karakterize edilen, \u0131s\u0131ya dayan\u0131kl\u0131 \u00f6stenitik \u00e7eliklerdir. 309S ve 310S s\u0131ras\u0131yla d\u00fc\u015f\u00fck karbonlu versiyonlar\u0131d\u0131r. Oksitleyici ortamlarda her ikisi de m\u00fckemmel korozyon direncine ve y\u00fcksek s\u0131cakl\u0131k dayan\u0131m\u0131na sahiptir. Oda s\u0131cakl\u0131\u011f\u0131nda \u00f6stenitik paslanmaz \u00e7eli\u011fin (310) matris mikro yap\u0131s\u0131 saf \u03b3&#039;d\u0131r. 310, s\u0131ras\u0131yla 25% krom ve 20% nikel i\u00e7erdi\u011finden \u201c2520 paslanmaz \u00e7elik\u201d olarak da bilinir. 310S ve 309S&#039;nin y\u00fcksek s\u0131cakl\u0131kta oksitlenmesi kolay de\u011fildir ve yayg\u0131n olarak kullan\u0131lan y\u00fcksek s\u0131cakl\u0131k dayan\u0131ml\u0131 kalitelerdir. Deneysel sonu\u00e7lar, s\u0131cakl\u0131k 1000\u00b0C&#039;nin alt\u0131nda oldu\u011funda 310&#039;un oksidasyon oran\u0131n\u0131n yava\u015f oldu\u011funu g\u00f6stermektedir. S\u0131cakl\u0131k 1200\u00b0C&#039;ye y\u00fckselmeye devam ettik\u00e7e 310&#039;un oksidasyon derecesi h\u0131zla h\u0131zlan\u0131r. Ayr\u0131ca 65% ~ 85% konsantrasyonuna sahip nitrik asit gibi g\u00fc\u00e7l\u00fc asitlerin ta\u015f\u0131nmas\u0131nda ve depolanmas\u0131nda da kullan\u0131l\u0131rlar.<\/p>\n<p>&nbsp;<\/p>\n<p>Di\u011fer standartlardaki alternatif malzeme:<\/p>\n<p>JIS G4303 SUS 309S, SUS 310S<\/p>\n<p>EN 10088-1 X12CrNi23-13\/ 1.4833, X15CrNiSi25-21\/1.4841, X8CrNi25-21\/ 1.4845<\/p>\n<p>&nbsp;<\/p>\n<p>Kimyasal bile\u015fim<\/p>\n<table>\n<tbody>\n<tr>\n<td>ASTM<\/td>\n<td>309<\/td>\n<td>309S<\/td>\n<td>310<\/td>\n<td>310S<\/td>\n<\/tr>\n<tr>\n<td>C<\/td>\n<td>\u22640,20<\/td>\n<td>\u22640,08<\/td>\n<td>\u22640,25<\/td>\n<td>\u22640,08<\/td>\n<\/tr>\n<tr>\n<td>Si<\/td>\n<td>\u22641,00<\/td>\n<td>\u22641,00<\/td>\n<td>\u22641,50<\/td>\n<td>\u22641,50<\/td>\n<\/tr>\n<tr>\n<td>Mn<\/td>\n<td>\u22642,00<\/td>\n<td>\u22642,00<\/td>\n<td>\u22642,00<\/td>\n<td>\u22642,00<\/td>\n<\/tr>\n<tr>\n<td>P<\/td>\n<td>\u22640,045<\/td>\n<td>\u22640,045<\/td>\n<td>\u22640,045<\/td>\n<td>\u22640,045<\/td>\n<\/tr>\n<tr>\n<td>S<\/td>\n<td>\u22640,030<\/td>\n<td>\u22640,030<\/td>\n<td>\u22640,030<\/td>\n<td>\u22640,030<\/td>\n<\/tr>\n<tr>\n<td>CR<\/td>\n<td>22.00~24.00<\/td>\n<td>22.00~24.00<\/td>\n<td>24.00~26.00<\/td>\n<td>24.00~26.00<\/td>\n<\/tr>\n<tr>\n<td>Ni<\/td>\n<td>12.00~15.00<\/td>\n<td>12.00~15.00<\/td>\n<td>19.00~22.00<\/td>\n<td>19.00~22.00<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Y\u00fcksek s\u0131cakl\u0131k ko\u015fullar\u0131nda, 310 \u0131s\u0131ya dayan\u0131kl\u0131 paslanmaz \u00e7elik performans\u0131 sabit tutabilir, d\u0131\u015far\u0131dan paslanmas\u0131 ve oksitlenmesi kolay de\u011fildir. Bunun temel nedeni, 310 paslanmaz \u00e7eli\u011fin kendisindeki y\u00fcksek Cr i\u00e7eri\u011fidir; metal Cr, oksijenle birle\u015ferek Cr2O3 oksit filmi olu\u015fturabilir; bu film, t\u00fcm pakete kadar 310 \u00e7eli\u011fin y\u00fczeyini s\u00fcrekli olarak kaplar, 310 \u00e7eli\u011fin \u201ckoruyucu giysi\u201d \u00fczerine konmas\u0131na e\u015fde\u011ferdir. 310 metalinin d\u0131\u015f d\u00fcnya ile i\u00e7 temas\u0131n\u0131 engelleyebilen 310 \u00e7eli\u011fin y\u00fcksek s\u0131cakl\u0131kta iyi oksidasyon direncine sahip olabilmesinin ana nedeni budur.<\/p>\n<p>Is\u0131ya dayan\u0131kl\u0131 paslanmaz \u00e7elik i\u00e7in krom (Cr) elementi y\u00fcksek s\u0131cakl\u0131kta stabildir, oksidasyon olu\u015fmaz ve d\u00fc\u015fmez. Ancak Cr i\u00e7eri\u011fi \u00e7ok y\u00fcksek olamaz, aksi takdirde paslanmaz \u00e7eli\u011fin toklu\u011fu da azalacakt\u0131r \u00e7\u00fcnk\u00fc Cr, \u03b1 bile\u015fiminin ortaya \u00e7\u0131kmas\u0131n\u0131 te\u015fvik edebilir ve \u03b3&#039;y\u0131 engelleyebilir, \u00e7ok fazla \u03b1&#039;n\u0131n k\u0131r\u0131lgan faz\u0131n olu\u015fmas\u0131na yol a\u00e7mas\u0131 kolayd\u0131r. Bu nedenle, \u00f6stenitik paslanmaz \u00e7elikte, Cr i\u00e7eri\u011finin orta d\u00fczeyde kalmas\u0131n\u0131 umuyoruz; bu, yaln\u0131zca malzemenin her a\u00e7\u0131dan performans\u0131n\u0131 sa\u011flamakla kalmay\u0131p ayn\u0131 zamanda baz\u0131 k\u0131r\u0131lgan fazlar\u0131n ortaya \u00e7\u0131kmas\u0131n\u0131 da \u00f6nleyebilir.<\/p>\n<p>Nikel, \u0131s\u0131ya dayan\u0131kl\u0131 \u00f6stenitik paslanmaz \u00e7elikte \u00e7ok \u00f6nemli bir elementtir ve \u03b3 olu\u015fumunun desteklenmesinde aktif rol oynar. Ni i\u00e7eri\u011finin artmas\u0131, \u03b3 faz\u0131ndan \u03b1 faz\u0131na ge\u00e7i\u015f s\u0131cakl\u0131\u011f\u0131n\u0131 \u00e7ok d\u00fc\u015f\u00fck hale getirebilir ve bu da ostenit matrisinin stabilitesini art\u0131rabilir. Ayr\u0131ca uygun Ni i\u00e7eri\u011fi, paslanmaz \u00e7eli\u011fin genel mekanik \u00f6zelliklerini ve iyi kaynak \u00f6zelliklerini a\u00e7\u0131k\u00e7a geli\u015ftirebilir.<\/p>","protected":false},"excerpt":{"rendered":"<p>309 ve 310 paslanmaz \u00e7elik saclar, y\u00fcksek Cr ve Ni i\u00e7eri\u011fi ile karakterize edilen, \u0131s\u0131ya dayan\u0131kl\u0131 \u00f6stenitik \u00e7eliklerdir. 309S ve 310S s\u0131ras\u0131yla d\u00fc\u015f\u00fck karbonlu versiyonlar\u0131d\u0131r. Oksitleyici ortamlarda her ikisi de m\u00fckemmel korozyon direncine ve y\u00fcksek s\u0131cakl\u0131k dayan\u0131m\u0131na sahiptir. Oda s\u0131cakl\u0131\u011f\u0131nda \u00f6stenitik paslanmaz \u00e7eli\u011fin (310) matris mikro yap\u0131s\u0131 saf \u03b3&#039;d\u0131r. 310 [\u2026]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[],"class_list":["post-2187","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/posts\/2187","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=2187"}],"version-history":[{"count":1,"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/posts\/2187\/revisions"}],"predecessor-version":[{"id":2188,"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/posts\/2187\/revisions\/2188"}],"wp:attachment":[{"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/media?parent=2187"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/categories?post=2187"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wldstainless.com\/tr\/wp-json\/wp\/v2\/tags?post=2187"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}