Search Results for color

This article is a compilation of color etchants that have been developed for a limited number of metals and alloys. It describes the optical methods for producing color, such as polarized light and differential interference contrast, with illustrations. The article discusses film formation and interference techniques such as anodizing, chemical etching, and tint etching. It provides a description of reagents that deposit sulfide films and molybdate films. The article concludes with a discussion on the thermal and vapor deposition methods to produce color.

This article includes a collection of color images that aid in the identification and classification of forms of corrosion in industries and environments. It emphasizes the negative aspects of corrosion and examines the cost and the effort to test, evaluate, simulate, and prevent corrosion. The ability of corrosion to undo the best complex engineered systems has been documented.

Steel, heated in contact with air at temperatures in the tempering range, takes on various temper colors due to the formation of a thin oxide film. This article provides detailed information on temper colors for plain carbon steel, especially on the effects of time and temperature.

This article describes the methods used for coloring anodized aluminum coatings: integral coloring, electrolytic coloring, chemical coloring, and organic dyeing. It discusses organic dye chemistry in terms of single-component organic dyes and multicomponent dyes. The article reviews optimal dyeing conditions, such as temperature, time, concentration, and pH. It concludes with a discussion on the factors considered for choosing a coloring method: the desired shade, light fastness, heat fastness, and contamination.