{"id":18044,"date":"2022-08-24T01:56:01","date_gmt":"2022-08-24T01:56:01","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=18044"},"modified":"2022-08-24T07:09:19","modified_gmt":"2022-08-24T07:09:19","slug":"bn-coating-high-and-stable-quality","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/es\/bn-coating-high-and-stable-quality\/","title":{"rendered":"Recubrimiento bn de alta calidad y estable"},"content":{"rendered":"<p><a href=\"https:\/\/www.alalloycasting.com\/es\/boron-nitride-coating\/\">Recubrimiento bn de alta calidad y estable<\/a>, el contenido que sigue gira en torno a este tema.<\/p>\n<p>La aleaci\u00f3n de ensayo es la T1-50% (fracci\u00f3n at\u00f3mica id\u00e9ntica a la de la aleaci\u00f3n con memoria de forma que se indica a continuaci\u00f3n), suministrada por el Instituto de Investigaci\u00f3n de Metales No Ferrosos de Pek\u00edn.<\/p>\n<p>La prueba de reacci\u00f3n en la interfaz entre la carcasa y la aleaci\u00f3n de titanio se llev\u00f3 a cabo en un horno de calentamiento por inducci\u00f3n al vac\u00edo de fabricaci\u00f3n propia: la aleaci\u00f3n de titanio se calent\u00f3 en un crisol de \u00f3xido de calcio y el horno de inducci\u00f3n se evacu\u00f3 hasta 7 Pa. Para evitar descargas en la bobina de inducci\u00f3n, el horno se llen\u00f3 con arg\u00f3n puro a alta presi\u00f3n a modo de protecci\u00f3n. La temperatura de fundici\u00f3n de la aleaci\u00f3n es de 1470 \u2103 y 1600 \u2103, respectivamente, y la pieza se retira cuando la temperatura de fundici\u00f3n desciende a temperatura ambiente. Para estudiar la capa de reacci\u00f3n en la superficie de la pieza fundida, esta no se someti\u00f3 a granallado ni decapado, sino que \u00fanicamente se limpi\u00f3 la carcasa del molde y, a continuaci\u00f3n, se tomaron muestras mediante corte por hilo.<\/p>\n<p>Las muestras se analizaron histol\u00f3gicamente utilizando un microscopio electr\u00f3nico de barrido S-570 equipado con un sistema EDS y una sonda electr\u00f3nica JAX-8100.<\/p>\n<figure id=\"attachment_18045\" aria-describedby=\"caption-attachment-18045\" style=\"width: 600px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-18045\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2022\/08\/\u56fe\u5c420.png\" alt=\"Recubrimiento bn de alta calidad y estable\" width=\"600\" height=\"600\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2022\/08\/\u56fe\u5c420.png 600w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2022\/08\/\u56fe\u5c420-300x300.png 300w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2022\/08\/\u56fe\u5c420-150x150.png 150w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2022\/08\/\u56fe\u5c420-120x120.png 120w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-18045\" class=\"wp-caption-text\">Recubrimiento bn de alta calidad y estable<\/figcaption><\/figure>\n<p><strong>1. Resultados de las pruebas y discusi\u00f3n<\/strong><\/p>\n<p>1.1  An\u00e1lisis de la interfaz de reacci\u00f3n entre la capa compuesta basada en recubrimiento de bn y la aleaci\u00f3n de titanio y n\u00edquel. El punto de fusi\u00f3n del T1<\/p>\n<p>La aleaci\u00f3n con memoria de forma 50%N tiene un punto de fusi\u00f3n de 1321 \u2103. En este experimento, se prepararon muestras de la aleaci\u00f3n con memoria de forma T1-50%1 en moldes compuestos con recubrimiento de bn a temperaturas de fundici\u00f3n de 1470 y 1600 \u00b0C, respectivamente. La figura 1 muestra una fotograf\u00eda a bajo aumento de piezas fundidas de aleaci\u00f3n de titanio-n\u00edquel preparadas a partir de moldes compuestos con recubrimiento de BN a diferentes temperaturas de fundici\u00f3n. Se puede observar que, a la temperatura normal de fundici\u00f3n de 1470 \u00b0C, la superficie de la pieza fundida de aleaci\u00f3n de titanio-n\u00edquel preparada mediante el molde compuesto con recubrimiento de BN es lisa y no se produce ning\u00fan fen\u00f3meno de adherencia de arena, tal y como se muestra en la figura 1(a). Esto demuestra que la carcasa compuesta con recubrimiento de BN presenta una buena resistencia al choque t\u00e9rmico y a la erosi\u00f3n por metal fundido, es capaz de soportar la erosi\u00f3n del metal fundido de aleaci\u00f3n de titanio a alta temperatura y muestra una buena capacidad de remodelaci\u00f3n. Para investigar la reacci\u00f3n entre el molde compuesto con recubrimiento de BN y la aleaci\u00f3n de titanio-n\u00edquel en condiciones de sobrecalentamiento extremo, se aument\u00f3 la temperatura de fundici\u00f3n a 600 \u2103.<\/p>\n<p>La figura 2 muestra una fotograf\u00eda tomada con un microscopio electr\u00f3nico de barrido de secciones transversales verticales de piezas fundidas de titanio-n\u00edquel fabricadas mediante <a href=\"https:\/\/www.alalloycasting.com\/es\/boron-nitride-coating\/\">Recubrimiento bn de alta calidad y estable<\/a>Moldes compuestos a base de [material] mediante corte por hilo a diferentes temperaturas de fundici\u00f3n. Como se aprecia en la figura, se observan fases irregulares de aleaci\u00f3n de titanio distribuidas sobre la matriz de las muestras preparadas a diferentes temperaturas, y las piezas fundidas de titanio-n\u00edquel presentan una buena compactaci\u00f3n, sin poros evidentes ni porosidad por contracci\u00f3n. No hay inclusiones de part\u00edculas grandes en la pieza fundida (el tama\u00f1o de las part\u00edculas de Y\u2082O\u2083 en la capa superficial de la carcasa compuesta con recubrimiento de alta calidad y estable es superior a 36 \u00b5m, el tama\u00f1o de las part\u00edculas de BN es superior a 30 \u00b5m, y el tama\u00f1o de las part\u00edculas de \u00f3xido de itrio para el lijado es superior a 120 \u00b5m), lo que indica que el molde compuesto con recubrimiento presenta una refractariedad muy buena. A 1470 \u00b0C, el <a href=\"https:\/\/www.alalloycasting.com\/es\/boron-nitride-coating\/\">Recubrimiento bn de alta calidad y estable<\/a>El molde compuesto a base de [material] y la aleaci\u00f3n de titanio fundida apenas reaccionan. Incluso bajo la acci\u00f3n abrasiva de la aleaci\u00f3n de titanio-n\u00edquel fundida a 1600 \u2103, no se produjo ning\u00fan problema de desprendimiento ni de desprendimiento de part\u00edculas. Por lo tanto, cuando se utiliza el molde compuesto con recubrimiento de BN para la aleaci\u00f3n de titanio-n\u00edquel, no solo se garantiza la forma del molde, sino tambi\u00e9n la pureza de la pieza fundida de la aleaci\u00f3n.<\/p>","protected":false},"excerpt":{"rendered":"<p>bn coating high and stable quality\uff0c the following content revolves around this center. The test alloy is T1-50% (atomic fraction, the same as the shape&hellip;<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[381],"tags":[13239,384],"class_list":["post-18044","post","type-post","status-publish","format-standard","hentry","category-boron-nitride-coating","tag-bn-coating-high-and-stable-quality","tag-boron-nitride-coating"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>bn coating high and stable quality, boron nitride coating<\/title>\n<meta name=\"description\" content=\"bn coating high and stable quality, Analysis of the reaction interface between the bn coating-based composite.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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