Influence of the Pre-Treatment and Post-Treatment Operations on the Surface Chemistry and Corrosion Behavior of Cerium-Based Conversion Coatings on Aluminum

Posted on June 12, 2021Categories Chemistry and BiochemistryTags , , ,   Leave a comment on Influence of the Pre-Treatment and Post-Treatment Operations on the Surface Chemistry and Corrosion Behavior of Cerium-Based Conversion Coatings on Aluminum

We studied the corrosion-protective properties of Cerium oxide coatings chemically deposited in green Ce solution conversion on technically pure aluminium (Al 1050) that were then immersed in phosphate solutions. The effect of: the kind of pretreatment of the l substrate; the conversion treatment of the l substrate in е-containing or P-containing solutions; and the sequential conversion treatment of the l substrate in е-containing and -containing solutions was studied in a comparative study. The results show that pre-treatment of the aluminium … Continue reading “Influence of the Pre-Treatment and Post-Treatment Operations on the Surface Chemistry and Corrosion Behavior of Cerium-Based Conversion Coatings on Aluminum”

Analysis of Porosity Defects in Aluminum as Part Handle Motor Vehicle Lever Processed by High-pressure Die Casting: Recent Advancement

Posted on May 29, 2021Categories Engineering ResearchTags , , ,   Leave a comment on Analysis of Porosity Defects in Aluminum as Part Handle Motor Vehicle Lever Processed by High-pressure Die Casting: Recent Advancement

The testing and analysis of cracking Aluminum (Al) materials is the subject of this study. A braking device on a motor vehicle was once as simple as a handle lever. The portion content of porosity from hydrogen gas causes cracking of the handle lever. The presence of H2 can be attributed to a less-than-perfect casting process and die design, particularly at the gate or brisket, as well as overflow. The goal of this study is to improve the process of … Continue reading “Analysis of Porosity Defects in Aluminum as Part Handle Motor Vehicle Lever Processed by High-pressure Die Casting: Recent Advancement”