Etching

This guide was prepared not only for the beginning metallographer but also for the experienced metallographer who may be looking for alternatives and new approaches to metallographic practice. For the beginning metallographer, little or no knowledge of steels and cast irons the guide provides the basic information needed to understand the various types of steels and cast irons available in the commercial world; provides examples of the multitude of microstructures that the metallographer will encounter, how these microstructures are created, and how they can be altered by heat treatment and other means. Some metallographers may be working in a small laboratory where no metallurgical support is available.

Giovanni Domenico Tiepolo (August 30, 1727 - March 3, 1804) was a painter and printmaker in etching, son of artist Giovanni Battista Tiepolo and elder brother of Lorenzo Baldissera Tiepolo. Domenico was born in Venice, studied under his father, and by the age of 13 was the chief assistant to him. He was one of the many assistants, including Lorenzo, that transferred the designs of his father (executed in the 'oil sketch' invented by the same). By the age of 20, he was producing his own work for commissioners. He assisted his father in Würzburg 1751-3, decorating the famous stairwell fresco, in Vicenza at the Villa Valmarana in 1757, and in Madrid at the palace of Charles III from 1762-70.

John Henry Twachtman (August 4, 1853 - August 8, 1902) was an American painter best-known for his impressionist landscapes, though his painting style varied widely through his career. Art historians consider Twachtman's style of impressionism to be among the more personal and experimental of his generation. He was a member of "The Ten", a loosely-allied group of American artists dissatisfied with professional art organizations, who banded together in 1898 to exhibit their works as a stylistically-unified group.