Selective Leaching, its mechanism, examples, factors affecting, prevention

1. Introduction to Selective Leaching Selective leaching or de-alloying, sometimes is also called as partitioning. Terms such as dezincification, graphitic corrosion, dealuminification, denickelificaton, and the like indicate the loss of one constituent of the alloy, but the general term dealloying has gained wider use in recent years. It is concerned with alloys, not with pure … Read more

Stress corrosion cracking, its mechanism, factors affecting, prevention methods

1. Introduction to stress corrosion cracking Stress-corrosion cracking (SCC) of material refers to cracking caused by the simultaneous presence of tensile stress and a specific corrosive environment. stress corrosion cracking happens due to localized corrosion, there is no any uniform corrosion in case of stress corrosion cracking. 1.1 Stress: Generally cracking in material takes place … Read more

Erosion corrosion, its mechanism, factors affecting, prevention, case study

1. Introduction to erosion corrosion The term “erosion” applies to deterioration due to mechanical force. When the factors contributing to erosion accelerate the rate of corrosion of a metal, the attack is called “erosion corrosion”. Erosion corrosion is usually caused by an aqueous or gaseous corrodent flowing over the metal surface or impinging on it. … Read more

Chromate conversion coating, its mechanism, factors affecting, film good or bad

Chromate conversion coating is one of many types of conversion coating. Chromate Conversion is also known as Chromatizing or Chromating Conversion Coatings: Metal and alloy coating is one of the most common means of protection against corrosion. Coatings also provide other properties, such as mechanical, physical and also esthetic. Commonly used coatings are inorganic non-metal … Read more

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