{"id":8042,"date":"2018-10-09T11:39:11","date_gmt":"2018-10-09T11:39:11","guid":{"rendered":"https:\/\/staging.asminternational.org\/hts-new\/results\/-\/journal_content\/56\/10192\/35524281\/NEWS\/"},"modified":"2023-02-07T04:48:02","modified_gmt":"2023-02-07T04:48:02","slug":"spray-tips-thermal-spray-coating-buildup","status":"publish","type":"post","link":"https:\/\/www.asminternational.org\/hts\/spray-tips-thermal-spray-coating-buildup\/","title":{"rendered":"Spray Tips: Thermal spray coating buildup"},"content":{"rendered":"<p>&nbsp;<\/p>\n<p style=\"margin: 0in 0in 0pt;\"><span style=\"line-height: normal;\"><span style=\"font-size: 12pt;\"><font face=\"Calibri\">The diagram shows the typical coating microstructure, containing unmelted particles, oxides, porosity, and debris. (a) Unmelted particles. (b) Oxides. (c) Debris. (d) Fine particles. (e) Porosity.<\/font><\/span><\/span><\/p>\n<p style=\"margin: 0in 0in 0pt;\"><span style=\"line-height: normal;\"><span style=\"font-size: 12pt;\"><font face=\"Calibri\">As the spray stream is manipulated over the part, overlapping occurs. After several passes, a coating such as that shown in the diagram results. A typical coating may include some porosity, unmelted or resolidified particles, and oxides. Depending on hood and dust collector design, masking and tooling, and airflow around the part, fumes from vaporized feedstock may be trapped in the layers between passes.<\/font><\/span><\/span><\/p>\n<p style=\"margin-bottom: 0pt;\">&nbsp;<\/p>\n<p style=\"margin-bottom: 0pt;\"><span style=\"line-height: normal;\"><span style=\"font-size: 12pt;\"><span style=\"color: rgb(68, 84, 106);\"><a href=\"https:\/\/matdata-s.asminternational.org\/hbk\/do\/section\/content\/V05A\/D00\/A01\/index.htm\"><span style=\"color: rgb(68, 84, 106);\">Volume 5A, Thermal Spray Technology<\/span><\/a> -&gt; Thermal Spray Processes and Coatings -&gt; <a href=\"https:\/\/matdata-s.asminternational.org\/hbk\/do\/section\/content\/V05A\/D02\/A05\/index.htm\"><span style=\"color: rgb(68, 84, 106);\">Introduction to Coating Design and Processing<\/span><\/a> -&gt; <span style=\"background: rgb(242, 242, 242);\"> Thermal Spray Processes and Coatings <\/span>Processing Prior to Coating&nbsp; <\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"color: rgb(68, 84, 106);\">-&gt; Coating Deposition<\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 0pt;\">&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>As the spray stream is manipulated over the part, overlapping occurs.<\/p>\n","protected":false},"author":63082,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-8042","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - 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