{"id":2247,"date":"2025-08-15T15:48:33","date_gmt":"2025-08-15T07:48:33","guid":{"rendered":"https:\/\/www.dhtchamber.com\/?p=2247"},"modified":"2025-08-15T15:55:02","modified_gmt":"2025-08-15T07:55:02","slug":"case-studies-corrosion-testing-of-automotive-components","status":"publish","type":"post","link":"https:\/\/www.dhtchamber.com\/de\/case-studies-corrosion-testing-of-automotive-components\/","title":{"rendered":"Fallstudien: Korrosionspr\u00fcfung von Automobilkomponenten"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"2247\" class=\"elementor elementor-2247\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4c6a0ba6 e-flex e-con-boxed e-con e-parent\" data-id=\"4c6a0ba6\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-65e40f24 elementor-widget elementor-widget-text-editor\" data-id=\"65e40f24\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"IEDodX01wo459oxaOxvcA1DinUc\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div><div><div style=\"text-align: center;\" data-zone-id=\"0\" data-line-index=\"0\" data-line=\"true\"><strong>Geschrieben von Robin<\/strong><\/div><div data-zone-id=\"0\" data-line-index=\"0\" data-line=\"true\"><div><div style=\"text-align: center;\" data-zone-id=\"0\" data-line-index=\"0\" data-line=\"true\"><strong>Leitender Ingenieur, Doaho Test (DHT\u00ae)<\/strong><\/div><\/div><\/div><\/div><\/div><div class=\"ace-line ace-line old-record-id-GhNVdzbjeoMMzpxbQ1ccXGfxn5f\">On icy winter roads, a car\u2019s undercarriage silently endures saltwater splashes and moisture exposure; in humid coastal cities, body metal components face constant exposure to salty air. Such real-world conditions make corrosion resistance a critical focus for automotive component R&amp;D and quality control. By conducting precise corrosion testing in a corrosion test chamber, engineers can simulate these extreme environments in the laboratory, identifying potential weaknesses in materials and coatings ahead of time. This approach not only prevents early vehicle damage and reduces after-sales risk but also provides scientific guidance for process improvements, ensuring every vehicle leaves the factory with enhanced durability and safety.<\/div><div class=\"ace-line ace-line old-record-id-KVJcdr5Fjo1orLx8R4pcTNRBnHB\">This article presents practical case studies and applications of corrosion test chambers, offering actionable testing and maintenance strategies for the automotive component industry.<\/div><h3 class=\"heading-3\">Importance of Corrosion Testing<\/h3><div class=\"ace-line ace-line old-record-id-XbgId2EmtogHs7xKJJncLMoonlh\">Corrosion testing evaluates a material or component\u2019s durability and resistance to corrosive factors such as salt spray, humidity cycles, acid rain, or chemical agents. Automotive components are often exposed to high humidity, salt, acid rain, road salts, and temperature fluctuations during their service life. These factors can cause metal oxidation, coating failure, and loosening of fasteners, potentially compromising overall vehicle safety.<\/div><div class=\"ace-line ace-line old-record-id-AKqTddyW8ol6c9xj8CYcdnuNnGh\"><div><div>The core objectives of corrosion testing include:<\/div><div><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-BVbYdaBcCouerExCnW2cV1rxnCd\" data-list=\"bullet\"><div>Identifying design flaws in materials or coatings.<\/div><\/li><li class=\"ace-line ace-line old-record-id-PHBpdLJraoFWkjxSDb3cQdtrnPg\" data-list=\"bullet\"><div>Optimizing anti-corrosion processes and material selection.<\/div><\/li><li class=\"ace-line ace-line old-record-id-UXzcdHLMio4jRExTZkUcIa7Znhe\" data-list=\"bullet\"><div>Providing reliable quality verification reports for certification and customer acceptance.<\/div><\/li><\/ul><\/div><\/div><\/div><h3 class=\"heading-3\">Case Study 1: Engine Compartment Metal Bracket Salt Spray Test<\/h3><div class=\"ace-line ace-line old-record-id-WAjRdWqwNoLmuGxIQ1qciGtzneh\">During the development of a new engine bracket, an automaker performed a salt spray corrosion test in a corrosion test chamber. Test conditions were set at 35\u00b0C, 5% NaCl concentration, over 480 hours.<\/div><div class=\"ace-line ace-line old-record-id-PsXQdIFIZoVIA7x1RV3cQYVanrg\"><div><div>Results:<\/div><div><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-FzaNdMNwso3IVNx9XGqcPQAVn9e\" data-list=\"bullet\"><div>The zinc coating on the bracket surface began to flake locally after 360 hours.<\/div><\/li><li class=\"ace-line ace-line old-record-id-MO0UdJy88oBDhrxgqWOcba9onnh\" data-list=\"bullet\"><div>Slight rust appeared on bolt joints, but no significant structural deformation occurred.<\/div><\/li><\/ul><\/div><\/div><\/div><div class=\"ace-line ace-line old-record-id-YdAUdQRaro03OtxFYRBctMZBnsc\">Based on the data, the R&amp;D team increased the zinc plating thickness and added a corrosion-resistant coating to the bolts. Re-tested samples showed no significant corrosion under the same conditions, meeting the design standards.<\/div><div class=\"ace-line ace-line old-record-id-DqUWdvKlOoOS9XxclePcjMiCnme\"><strong>Key takeaway:<\/strong> Salt spray testing allows manufacturers to identify material and process weaknesses before mass production, avoiding large-scale rework and after-sales issues.<\/div><h3 class=\"heading-3\">Case Study 2: Exterior Body Trim Humid Heat Cycle Test<\/h3><div class=\"ace-line ace-line old-record-id-KAcQdoyjSo5Mfzxo9W3cOk3jnef\"><div><div>Exterior trim components are frequently exposed to rain, humidity, and high temperatures. A supplier of chrome-plated decorative parts designed a humid heat cycle corrosion test in a <strong>corrosion test chamber<\/strong> with the following cycle:<\/div><div><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-GPaOdPeYmoEph2xGqfwcO2s6nkN\" data-list=\"bullet\"><div>High-temperature humidity: 60\u00b0C, 95% RH for 12 hours.<\/div><\/li><li class=\"ace-line ace-line old-record-id-MgSadrWX1oLJ4cxUrM5c6PJan6f\" data-list=\"bullet\"><div>Room temperature drying: 25\u00b0C, 50% RH for 12 hours.<\/div><\/li><li class=\"ace-line ace-line old-record-id-VZpfdQDq4oHwA5xaRWQcl508nKe\" data-list=\"bullet\"><div>Cycle repeated for 30 days.<\/div><\/li><\/ul><\/div><\/div><\/div><div class=\"ace-line ace-line old-record-id-JErpdPFEGonPJDxoGJ8cHbcHnTc\">During the test, some chrome-plated parts developed minor water spots and slight blistering, indicating localized coating failure under high humidity. The supplier optimized the plating process and applied additional sealing coatings on critical areas. The improved parts demonstrated stable performance in repeated cycles and passed customer acceptance.<\/div><div class=\"ace-line ace-line old-record-id-QSHndRqKOohNV6xmj2Qcs2MVnNb\"><strong>Key takeaway:<\/strong> Humid heat cycle testing simulates long-term exposure to variable climates, providing direct data for process optimization.<\/div><h3 class=\"heading-3\">Case Study 3: Brake System Metal Parts Salt Spray and Humid Heat Combined Test<\/h3><div class=\"ace-line ace-line old-record-id-Fzcfds1NzoCqHuxpLZ4cSlwsnvb\">Brake systems involve safety-critical components, making corrosion resistance essential. A car manufacturer conducted a combined corrosion test on calipers and discs, integrating salt spray and humid heat cycles for 1,000 hours.<\/div><div class=\"ace-line ace-line old-record-id-ZSnudYIj6ogZ6mx7fT6chvUEnwe\"><div><div><strong>Findings:<\/strong><\/div><div><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-WWK4dqCwQoz6f1xDWoOcBYXIncg\" data-list=\"bullet\"><div>Low-alloy steel calipers showed rust spots after 700 hours.<\/div><\/li><li class=\"ace-line ace-line old-record-id-INgldsWuPo3kiaxbsrJcH1ONnzc\" data-list=\"bullet\"><div>Steel mounting bolts exhibited slight oxidation during humidity cycles, but thread integrity remained intact.<\/div><\/li><\/ul><\/div><\/div><\/div><div class=\"ace-line ace-line old-record-id-FBv8dM544o2kwhxVqFrcoSecnQg\">The team upgraded the material to high-corrosion-resistant alloy steel and applied zinc plating with anti-rust oil on the bolts. Re-testing showed no corrosion, confirming the effectiveness of material improvements.<\/div><div class=\"ace-line ace-line old-record-id-SumTdYFeeotLWUxf8nhcIN6jnmk\"><strong>Key takeaway:<\/strong> Combined corrosion testing provides a more comprehensive evaluation for complex and safety-critical components, minimizing risks overlooked by single tests.<\/div><h3 class=\"heading-3\">Practical Recommendations for Using Corrosion Test Chambers<\/h3><div class=\"ace-line ace-line old-record-id-IVMadE1aQokXzpxAUhxcOr6QnMb\"><div><div>Based on these case studies, automotive component manufacturers can optimize corrosion testing by focusing on:<\/div><div><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-MBbBdD2WcoQyq2xXS5gcviCBn6b\" data-list=\"bullet\"><div><strong>Defining test objectives and conditions:<\/strong> Match the salt spray type, humidity\/temperature cycles, and duration to the component\u2019s material, usage environment, and customer requirements to ensure realistic results.<\/div><\/li><li class=\"ace-line ace-line old-record-id-EY7id2ysBoyGMfxsLXTc4sADnL5\" data-list=\"bullet\"><div><strong>Maintaining chamber accuracy and stability:<\/strong> Regularly calibrate temperature and humidity sensors, and clean spray systems and piping to prevent deviations in test data.<\/div><\/li><li class=\"ace-line ace-line old-record-id-BC28dqwbmonpl8xft4wcHqTwn1g\" data-list=\"bullet\"><div><strong>Establishing complete data records:<\/strong> Track sample performance and anomalies for trend analysis, identifying weak points in materials or coatings to guide process improvement.<\/div><\/li><li class=\"ace-line ace-line old-record-id-VxRJdKQN5olWrtxQYbZcpOSvnqd\" data-list=\"bullet\"><div><strong>Risk-prioritized testing:<\/strong> Increase test frequency for critical or high-risk parts while extending intervals for non-critical components, optimizing resources and ensuring comprehensive coverage for key data.<\/div><\/li><\/ul><\/div><\/div><\/div><h3 class=\"heading-3\">Schlussfolgerung<\/h3><div class=\"ace-line ace-line old-record-id-TMiOdteoQosUQvxJqfrcurdunwf\">Case-driven corrosion testing enables automotive component manufacturers to uncover potential material or process issues, optimize design, extend product life, and enhance overall vehicle reliability. Scientific application of corrosion testing and corrosion test chambers establishes a closed loop between R&amp;D, production, and quality management, delivering measurable risk control and economic benefits.<\/div><div class=\"ace-line ace-line old-record-id-R3RfdeRPOo8RkIxK25yc8TZznvo\">For companies seeking higher testing accuracy, extended chamber lifespan, or tailored corrosion testing solutions for specific components, the <a href=\"https:\/\/www.dhtchamber.com\/de\/contact\/\"><strong>DHT\u00ae Technical Team<\/strong><\/a> can provide customized support. With years of industry experience and engineering expertise, DHT\u00ae ensures every test is more efficient, reliable, and fully traceable.<\/div><h3 class=\"heading-2 ace-line old-record-id-WkaWdTkWro5eulxwCjAcB3tgnUh\">H\u00e4ufig gestellte Fragen<\/h3><div class=\"ace-line ace-line old-record-id-GRUwdhqP2oIpGLx9AIOc6ssWn8f\"><strong>Was ist Korrosionspr\u00fcfung und warum ist sie f\u00fcr Automobilkomponenten wichtig?<\/strong><\/div><div class=\"ace-line ace-line old-record-id-Ndypd2U9woXJ0Qx8KZWceacrnHg\">Korrosionstests bewerten die Haltbarkeit und Best\u00e4ndigkeit von Automobilmaterialien und -komponenten gegen\u00fcber Faktoren wie Salzspr\u00fchtests, Feuchtigkeitszyklen, saurem Regen und chemischen Mitteln. Sie helfen dabei, potenzielle Schw\u00e4chen in Materialien oder Beschichtungen zu identifizieren, Korrosionsschutzprozesse zu optimieren und sicherzustellen, dass Komponenten Qualit\u00e4tsstandards erf\u00fcllen, um letztendlich die Sicherheit und Zuverl\u00e4ssigkeit von Fahrzeugen zu erh\u00f6hen.<\/div><div class=\"ace-line ace-line old-record-id-Z0n0dhuD4oZ975xHOiYcN5kLnrb\">\u00a0<\/div><div class=\"ace-line ace-line old-record-id-MsvjdwMAno6Th5xMp7ucZZOXnah\"><strong>Wie helfen Korrosionspr\u00fcfkammern bei der Pr\u00fcfung von Automobilkomponenten?<\/strong><\/div><div class=\"ace-line ace-line old-record-id-SqTxdPYKGoc8H5xO7wvcDx5Bn1c\">Korrosionspr\u00fcfkammern simulieren extreme reale Bedingungen, wie z.B. salzige Stra\u00dfen oder feuchte K\u00fcstenumgebungen, und erm\u00f6glichen es Ingenieuren, Metallhalterungen, Karosserieteile und Bremsbauteile unter kontrollierten Salzspr\u00fch- und Feuchtigkeits-\/Temperaturzyklen zu testen. Dies erm\u00f6glicht die fr\u00fchzeitige Erkennung von Material- oder Beschichtungsschw\u00e4chen und unterst\u00fctzt Prozessverbesserungen vor der Massenproduktion.<\/div><div class=\"ace-line ace-line old-record-id-DZd3d8ZC4ojjFZxeFfxcGKOznKd\">\u00a0<\/div><div class=\"ace-line ace-line old-record-id-NBP1dhmERoeNEDx1ezxcv7H4nef\"><strong>Welche Best Practices sollten Hersteller befolgen, wenn sie Korrosionstestkammern verwenden?<\/strong><\/div><div class=\"ace-line ace-line old-record-id-Rnljddg4locGCSxU15lcXLbDnmb\">Hersteller sollten Testziele basierend auf Materialtyp und Nutzungsbedingungen definieren, die Kammergenauigkeit durch regelm\u00e4\u00dfige Kalibrierung und Reinigung aufrechterhalten, Testdaten f\u00fcr Trends aufzeichnen und analysieren sowie risikopriorisierte Tests implementieren, indem sie sich mehr auf kritische oder hochriskante Komponenten konzentrieren. Diese Praktiken optimieren die Ressourcen und gew\u00e4hrleisten zuverl\u00e4ssige, nachvollziehbare Korrosionstestergebnisse.<\/div><\/div>\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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2890e84 e-flex e-con-boxed e-con e-parent\" data-id=\"2890e84\" data-element_type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8f4eb0d elementor-widget elementor-widget-button\" data-id=\"8f4eb0d\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/www.dhtchamber.com\/de\/contact\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Jetzt ein Angebot erhalten<\/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\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Geschrieben von Robin Senior Engineer, Doaho Test (DHT\u00ae) Auf eisigen Winterstra\u00dfen ertr\u00e4gt der Unterboden eines Autos stillschweigend Salz-Wasser-Spritzwasser und Feuchtigkeit; in feuchten K\u00fcstenst\u00e4dten sind Metallteile des Karosserierahmens st\u00e4ndig salzhaltiger Luft ausgesetzt. Solche realen Bedingungen lassen die Korrosionsresistenz zu einem entscheidenden Fokus f\u00fcr die Forschung und Entwicklung von Automobilkomponenten sowie f\u00fcr die Qualit\u00e4tskontrolle werden. Durch pr\u00e4zise Korrosionstests in [\u2026]<\/p>","protected":false},"author":1,"featured_media":2109,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[6,10],"tags":[],"class_list":["post-2247","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-customer-cases"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.dhtchamber.com\/de\/wp-json\/wp\/v2\/posts\/2247","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dhtchamber.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dhtchamber.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dhtchamber.com\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dhtchamber.com\/de\/wp-json\/wp\/v2\/comments?post=2247"}],"version-history":[{"count":0,"href":"https:\/\/www.dhtchamber.com\/de\/wp-json\/wp\/v2\/posts\/2247\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dhtchamber.com\/de\/wp-json\/wp\/v2\/media\/2109"}],"wp:attachment":[{"href":"https:\/\/www.dhtchamber.com\/de\/wp-json\/wp\/v2\/media?parent=2247"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dhtchamber.com\/de\/wp-json\/wp\/v2\/categories?post=2247"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dhtchamber.com\/de\/wp-json\/wp\/v2\/tags?post=2247"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}