![\"2000](\"https:\/\/aluminiumceramicfiber.com\/wp-content\/uploads\/2020\/11\/Impurity-Elements-in-2000-Series.jpg\")
<\/p>\n2000 serisi Al-Cu-Mg ve Al-Cu-Mn ala\u015f\u0131mlar\u0131ndaki safs\u0131zl\u0131k elementleri ba\u015fl\u0131ca Fe, Si, Zn ve benzeri elementlerdir. Magnezyum i\u00e7eri\u011fi 1,0%'den az olan Al-Cu-Mg ala\u015f\u0131mlar\u0131nda, 0,5%'den fazla silikon i\u00e7eri\u011fi, do\u011fal ya\u015flanma kabiliyetini etkilemeden yapay ya\u015flanman\u0131n h\u0131z\u0131n\u0131 ve mukavemetini art\u0131rabilir. Silikon ve magnezyum Mg2Si faz\u0131n\u0131 olu\u015fturdu\u011fundan, bu durum yapay ya\u015flanma etkisine elveri\u015flidir. Ancak, magnezyum i\u00e7eri\u011fi 1,5%'ye y\u00fckseltildi\u011finde, do\u011fal ya\u015fland\u0131rma veya yapay ya\u015fland\u0131rma i\u015fleminden sonra silikon i\u00e7eri\u011finin artmas\u0131yla birlikte ala\u015f\u0131m\u0131n mukavemeti ve \u0131s\u0131 direnci azalacakt\u0131r. Bu nedenle, silikon i\u00e7eri\u011fi m\u00fcmk\u00fcn oldu\u011funca d\u00fc\u015f\u00fck tutulmal\u0131d\u0131r.<\/p>\n
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Buna ek olarak, silikon i\u00e7eri\u011findeki art\u0131\u015f, 2A12, 2A06 ve di\u011fer ala\u015f\u0131mlar\u0131n d\u00f6k\u00fcm s\u0131ras\u0131nda \u00e7atlak olu\u015fturma e\u011filimini art\u0131racak ve per\u00e7inleme s\u0131ras\u0131nda plastisiteyi azaltacakt\u0131r. Bu nedenle, ala\u015f\u0131mdaki silikon i\u00e7eri\u011fi genellikle 0,5%'nin alt\u0131nda tutulur. Y\u00fcksek plastisite gerektiren ala\u015f\u0131mlarda ise silikon i\u00e7eri\u011fi daha d\u00fc\u015f\u00fck olmal\u0131d\u0131r.<\/p>\n
2000 Serisindeki Safs\u0131zl\u0131k Elementleri<\/strong><\/p>\n Fe ve Al, FeAl\u2083 bile\u015fikleri olu\u015fturur. Fe ayr\u0131ca Cu, Mn ve Si gibi elementlerle iri taneli bile\u015fikler olu\u015fturabilir. Bu bile\u015fikler matrise \u00e7\u00f6z\u00fcnmez ve ala\u015f\u0131m\u0131n plastisitesini azalt\u0131r. Ala\u015f\u0131m, deformasyon s\u0131ras\u0131nda \u00e7atlamaya meyillidir. Ayr\u0131ca, mukavemet art\u0131\u015f\u0131n\u0131 \u00f6nemli \u00f6l\u00e7\u00fcde azalt\u0131r. Bununla birlikte, az miktarda Fe (0,25%'den az), ala\u015f\u0131m\u0131n mekanik \u00f6zellikleri \u00fczerinde \u00e7ok az etkiye sahiptir; bu durum d\u00f6k\u00fcm ve kaynak \u00e7atlaklar\u0131n\u0131n olu\u015fma e\u011filimini azalt\u0131r, ancak do\u011fal ya\u015flanma h\u0131z\u0131n\u0131 d\u00fc\u015f\u00fcr\u00fcr. Daha y\u00fcksek plastisiteye sahip malzemeler elde etmek i\u00e7in, ala\u015f\u0131mdaki Fe ve Si i\u00e7eri\u011fi m\u00fcmk\u00fcn oldu\u011funca d\u00fc\u015f\u00fck tutulmal\u0131d\u0131r. Az miktarda Zn (0,1% ila 0,5%), Al-Cu-Mg ala\u015f\u0131m\u0131n\u0131n oda s\u0131cakl\u0131\u011f\u0131ndaki mekanik \u00f6zellikleri \u00fczerinde \u00e7ok az etkiye sahiptir, ancak ala\u015f\u0131m\u0131n \u0131s\u0131 direncini azalt\u0131r. Ala\u015f\u0131mdaki Zn i\u00e7eri\u011fi 0,3%'nin alt\u0131nda tutulmal\u0131d\u0131r.<\/p>\n Al-Cu-Mn ala\u015f\u0131m\u0131ndaki Fe i\u00e7eri\u011fi 0,45%\u2019yi a\u015ft\u0131\u011f\u0131nda, \u00e7\u00f6z\u00fcnmeyen Al7Cu2Fe faz\u0131 olu\u015fur; bu durum, ala\u015f\u0131m\u0131n su verme-ya\u015fland\u0131rma durumundaki mekanik \u00f6zelliklerini ve 300\u00b0C\u2019deki yorulma mukavemetini zay\u0131flat\u0131r. Bu nedenle, Fe i\u00e7eri\u011fi genellikle 0,3% veya daha az ile s\u0131n\u0131rland\u0131r\u0131l\u0131r. Az miktarda Si (0,4%), oda s\u0131cakl\u0131\u011f\u0131ndaki mekanik \u00f6zellikler \u00fczerinde belirgin bir etkiye sahip de\u011fildir, ancak 300\u00b0C'deki yorulma mukavemetini de d\u00fc\u015f\u00fcr\u00fcr. Si i\u00e7eri\u011fi 0,4%'yi a\u015ft\u0131\u011f\u0131nda, oda s\u0131cakl\u0131\u011f\u0131ndaki mekanik \u00f6zellikleri de d\u00fc\u015f\u00fcr\u00fcr. Bu nedenle, Si i\u00e7eri\u011finin 0,3%'nin alt\u0131nda olmas\u0131 gerekir. Az miktarda Zn (0,3%), ala\u015f\u0131m\u0131n oda s\u0131cakl\u0131\u011f\u0131ndaki performans\u0131 \u00fczerinde herhangi bir etkiye sahip de\u011fildir; ancak Al i\u00e7indeki Cu'nun dif\u00fczyonunu h\u0131zland\u0131rabilir ve 300\u00b0C'de ala\u015f\u0131m\u0131n yorulma mukavemetini d\u00fc\u015f\u00fcrebilir; bu nedenle Zn i\u00e7eri\u011fi genellikle 0,1%'nin alt\u0131nda tutulur.<\/p>\n