{"id":7522,"date":"2024-06-21T16:25:22","date_gmt":"2024-06-21T08:25:22","guid":{"rendered":"https:\/\/am-material.com\/?page_id=7522"},"modified":"2024-06-21T16:41:16","modified_gmt":"2024-06-21T08:41:16","slug":"invar-36-powder","status":"publish","type":"page","link":"https:\/\/am-material.com\/tr\/invar-36-powder\/","title":{"rendered":"Invar 36 toz"},"content":{"rendered":"
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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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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LPBF ile Invar36 ala\u015f\u0131m\u0131n\u0131n mikroyap\u0131s\u0131 ve mekanik-\u00f6zellik anizotropisi<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Invar 36<\/strong> havac\u0131l\u0131k ve hassas aletlerde yayg\u0131n olarak kullan\u0131lmaktad\u0131r. Truer RD ekibi, Invar36 ala\u015f\u0131m\u0131n\u0131n numunelerini lazer toz yata\u011f\u0131 f\u00fczyonu (LPBF) i\u015flemi ile haz\u0131rlayarak mikroyap\u0131 ve mekanik \u00f6zelliklerini incelemi\u015ftir. Sonu\u00e7lar, \u00fc\u00e7 oryantasyonun mikroyap\u0131s\u0131n\u0131n ve mekanik \u00f6zelliklerinin anizotropi karakteristi\u011fine sahip oldu\u011funu g\u00f6sterdi.<\/p>

\u00a0<\/p>

Tablo 1<\/strong> invar 36 ala\u015f\u0131m\u0131n\u0131n nominal bile\u015fimi Ni ve Fe'den olu\u015fur ve di\u011fer elementler toz haz\u0131rlama i\u015flemi s\u0131ras\u0131nda ka\u00e7\u0131n\u0131lmaz eser safs\u0131zl\u0131klar olarak bulunur. Bu nedenle, eser safs\u0131zl\u0131klar\u0131n neden oldu\u011fu baz\u0131 art\u0131k gerilmeler ihmal edilebilir d\u00fczeydedir.<\/p>

\u015eekil 1<\/strong> d10: 19.1\u03bcm, D50: 37.3\u03bcm ve D90: 63.7\u03bcm ile test edilen toz partik\u00fcl SEM foto\u011fraf\u0131n\u0131 g\u00f6sterdi.<\/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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Tablo 1 \u00c7al\u0131\u015f\u0131lan Invar 36 tozunun kimyasal bile\u015fimi<\/td>\n<\/tr>\n
Elementler<\/td>\nFe<\/td>\nNi<\/td>\nCr<\/td>\nMn<\/td>\nCo<\/td>\nP<\/td>\nC<\/td>\n<\/tr>\n
a\u011f\u0131rl\u0131k\u00e7a %<\/td>\nBal<\/td>\n36.02<\/td>\n0.005<\/td>\n0.029<\/td>\n0.030<\/td>\n0.001<\/td>\n0.0011<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Mikroyap\u0131 karakterizasyonu<\/strong> truer taraf\u0131ndan \u00fcretilen Invar 36 tozu ile LPBF ile haz\u0131rlanan Invar 36 ala\u015f\u0131mlar\u0131n\u0131n, y\u00fcz merkezli k\u00fcbik kafes ve g\u00fc\u00e7l\u00fc y\u00f6nelimlere sahip net bir tek gama faz\u0131 sergiledi\u011fi g\u00f6r\u00fclm\u00fc\u015ft\u00fcr. Bu, numunelerde optimum tane y\u00f6nlenmesi olas\u0131l\u0131\u011f\u0131 oldu\u011funu g\u00f6sterir.<\/p>

LPBF ile haz\u0131rlanan farkl\u0131 y\u00f6nelimlere sahip Invar36 ala\u015f\u0131mlar\u0131n\u0131n mikroyap\u0131 anizotropisini incelemek i\u00e7in tane morfolojisi ve boyutu analiz edilmi\u015ftir. Invar 36 ala\u015f\u0131mlar\u0131n\u0131n mikroyap\u0131 anizotropisi (\u015eekil 2<\/strong>) LPBF ile 0\u00b0, 45\u00b0 ve 90\u00b0 y\u00f6nelimlerde haz\u0131rlanan Inconel 718 ve LPBF ile haz\u0131rlanan AlSi10Mg ala\u015f\u0131mlar\u0131nda g\u00f6zlenene benzerdir.<\/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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0\u00b0, 45\u00b0 ve 90\u00b0'de, LPBF ile haz\u0131rlanan Invar 36 ala\u015f\u0131m\u0131n\u0131n mikroyap\u0131s\u0131 da LPBF ile haz\u0131rlanan Ti15Mo ala\u015f\u0131m\u0131n\u0131nkine benzerdir. 0\u00b0 ve 45\u00b0 numunelerinin her ikisi de e\u015f eksenlidir, 90\u00b0'nin tane boyutu di\u011fer iki numuneye k\u0131yasla tane boyutu ve \u015fekli a\u00e7\u0131s\u0131ndan \u00f6nemli \u00f6l\u00e7\u00fcde farkl\u0131d\u0131r.<\/p>

Kurala g\u00f6re, tane yo\u011funlu\u011fu, tane y\u00f6nelimini g\u00f6steren tane indeksinin karek\u00f6k\u00fcd\u00fcr. Bu nedenle, baz\u0131 hesaplamalardan sonra, LPBF ile haz\u0131rlanan Invar36 ala\u015f\u0131m\u0131n\u0131n 0\u00b0, 45\u00b0 ve 90\u00b0 numunelerinin doku mukavemeti s\u0131ras\u0131yla 2.46, 2.90 ve 2.61 olarak hesaplanabilir. LPBF i\u015flemi ile haz\u0131rlanan Invar 36 ala\u015f\u0131m\u0131n\u0131n doku indeksi ve doku mukavemeti 0\u00b0, 45\u00b0 ve 90\u00b0 y\u00f6nlerinde 1'den b\u00fcy\u00fckt\u00fcr, bu da malzemenin mikroyap\u0131s\u0131n\u0131n belirgin bir anizotropi g\u00f6sterdi\u011fini i\u015faret etmektedir.<\/p>

\u00a0<\/sup><\/p>

LPBF taraf\u0131ndan farkl\u0131 yap\u0131 y\u00f6nlerinde \u00fcretilen Invar36 ala\u015f\u0131m\u0131n\u0131n gerilme-gerinim e\u011frileri test edilmi\u015ftir. \u00dc\u00e7 numunenin farkl\u0131 mekanik \u00f6zellikler sergiledi\u011fi a\u00e7\u0131kt\u0131r: 90\u00b0 numunesi 364MPa akma dayan\u0131m\u0131na sahipken, 0\u00b0 ve 45\u00b0 numuneleri daha y\u00fcksek 392MPa ve 401MPa g\u00f6stermektedir. Her bir numunenin \u00e7ekme mukavemeti de 90\u00b0, 0\u00b0 ve 45\u00b0 i\u00e7in 397MPa, 485MPa ve 496MPa de\u011ferleriyle bu e\u011filimi takip etmi\u015ftir. Son olarak, uzama \u00f6l\u00e7\u00fcm\u00fc 90\u00b0 uzaman\u0131n ,70 oldu\u011funu g\u00f6stererek LPBF ile haz\u0131rlanan Invar 36 ala\u015f\u0131m\u0131n\u0131n iyi bir uygulama beklentisine sahip oldu\u011funu g\u00f6stermektedir.<\/p>

\u015eekil 3<\/strong> lPBF ile \u00fcretilen ala\u015f\u0131mlarda mikroyap\u0131 anizotropisinin daha eksiksiz bir a\u00e7\u0131klamas\u0131n\u0131 sa\u011flar. 90\u00b0 i\u00e7in, erimi\u015f havuz ile kat\u0131la\u015fm\u0131\u015f kat\u0131 aras\u0131ndaki s\u0131cakl\u0131k gradyan\u0131 G \u00f6nemli \u00f6l\u00e7\u00fcde daha b\u00fcy\u00fckt\u00fcr ve bu da \u0131s\u0131 ak\u0131\u015f\u0131 y\u00f6n\u00fcnde s\u00fctunlu tanelerin olu\u015fumuna elveri\u015flidir. 0\u00b0 numuneler i\u00e7in \u0131s\u0131, erimi\u015f havuz merkezinden her iki tarafa da akar ve bu da daha k\u00fc\u00e7\u00fck bir G ile sonu\u00e7lan\u0131r. Buna ek olarak, 45\u00b0 numunenin mikroyap\u0131s\u0131n\u0131n geometrik ili\u015fkisi \u015eekil 3 (c)'de g\u00f6sterilmektedir. G\u00f6zlemlenen y\u00fczey, 90\u00b0'lik numunenin 45\u00b0'lik bir te\u011fetle kesilmesiyle elde edilen y\u00fczeye ve 0\u00b0'lik numunenin izd\u00fc\u015f\u00fcm\u00fcne e\u015fde\u011ferdir. Bu nedenle, hem 0\u00b0 hem de 45\u00b0 numuneler e\u015f eksenli morfoloji sergiler, ancak ikincisi uzama g\u00f6sterir.<\/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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\u015eekil 4<\/strong> 0\u00b0, 45\u00b0 ve 90\u00b0 numunelerin oda s\u0131cakl\u0131\u011f\u0131ndaki \u00e7ekme k\u0131r\u0131lma morfolojisini g\u00f6stermekte ve \u00e7ekme k\u0131r\u0131lma modunu ortaya koymaktad\u0131r. 0\u00b0 ve 45\u00b0 numunelerde, hasarl\u0131 metal\u00fcrjik ba\u011flanma ile zay\u0131f b\u00f6lgelerin olu\u015fumuna atfedilebilecek b\u00fcy\u00fck g\u00f6zenekler vard\u0131r. \u00c7ekme testi s\u0131ras\u0131nda, zay\u0131f alan tercihli k\u0131r\u0131lma g\u00f6stererek y\u0131rt\u0131lma kenarlar\u0131n\u0131n olu\u015fmas\u0131na neden olur. Buna kar\u015f\u0131l\u0131k, 90\u00b0 numunede b\u00fcy\u00fck bo\u015fluklar g\u00f6r\u00fclmez ve \u00e7ekme testi sonu\u00e7lar\u0131yla tutarl\u0131 olarak m\u00fckemmel uzama sergiler.<\/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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Lazer toz yataklar\u0131n\u0131n f\u00fczyonu ile haz\u0131rlanan Invar36 ala\u015f\u0131mlar\u0131 i\u00e7in Truer taraf\u0131ndan yap\u0131lan baz\u0131 testler ve analizlerden sonra, 0 \u00b0, 45 \u00b0 ve 90 \u00b0 'lik farkl\u0131 yap\u0131 y\u00f6nlerinde, LPBF ile haz\u0131rlanan Invar36 ala\u015f\u0131m\u0131n\u0131n mikroyap\u0131s\u0131 ve mekanik \u00f6zelliklerinin \u00fc\u00e7 y\u00f6nde belirgin anizotropi g\u00f6sterdi\u011fi sonucuna vard\u0131k. Ve 90\u00b0 y\u00f6n\u00fcndeki numuneler \u00e7oklu havuzlarda s\u00fctunlu tane b\u00fcy\u00fcmesi g\u00f6stermi\u015ftir. Bununla birlikte, 0\u00b0 ve 45\u00b0 y\u00f6nlerinde \u00fcretilen yap\u0131lar e\u015f eksenli taneler sergilemektedir. LPBF ile haz\u0131rlanan Invar36 ala\u015f\u0131m\u0131n\u0131n mekanik \u00f6zellikleri mikroyap\u0131ya duyarl\u0131d\u0131r ve bu nedenle belirgin bir anizotropi g\u00f6sterir. LPBF ile haz\u0131rlanan Invar36 ala\u015f\u0131m\u0131 s\u00fcnek k\u0131r\u0131lma g\u00f6stermi\u015f ve 90\u00b0 y\u00f6n\u00fcnde haz\u0131rlanan numune en b\u00fcy\u00fck \u00e7ukur boyutuna ve daha iyi uzamaya (,70) sahip olmu\u015ftur.<\/p>

\u00a0<\/p>

Bu \u00e7al\u0131\u015fma, LPBF ile Invar36 ala\u015f\u0131m\u0131n\u0131n ve ayr\u0131ca Invar 36 tozlar\u0131n\u0131n \u00fcretimi i\u00e7in de\u011ferli bilgiler ve sa\u011flam bir temel sa\u011flamaktad\u0131r.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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\n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\u015eimdi \u0130leti\u015fim<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

The microstructure and mechanicalproperty anisotropy of Invar36 alloy by LPBF Invar 36 is widely used in aerospace and precision instruments. Truer RD team prepared the samples of Invar36 alloy through a laser powder bed fusion (LPBF) process to do some investigation for its microstructure& mechanical properties. The results showed its microstructure and mechannical \u00a0properties of […]<\/p>\n","protected":false},"author":5,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"full-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"folder":[],"class_list":["post-7522","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/am-material.com\/tr\/wp-json\/wp\/v2\/pages\/7522","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/am-material.com\/tr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/am-material.com\/tr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/am-material.com\/tr\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/am-material.com\/tr\/wp-json\/wp\/v2\/comments?post=7522"}],"version-history":[{"count":10,"href":"https:\/\/am-material.com\/tr\/wp-json\/wp\/v2\/pages\/7522\/revisions"}],"predecessor-version":[{"id":7537,"href":"https:\/\/am-material.com\/tr\/wp-json\/wp\/v2\/pages\/7522\/revisions\/7537"}],"wp:attachment":[{"href":"https:\/\/am-material.com\/tr\/wp-json\/wp\/v2\/media?parent=7522"}],"wp:term":[{"taxonomy":"folder","embeddable":true,"href":"https:\/\/am-material.com\/tr\/wp-json\/wp\/v2\/folder?post=7522"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}