This article provides an overview of the origin of metallography. It presents information on how to select a section from a specimen and prepare it for macroscopic analysis. The article describes the macroscopic analysis of steel fracture surfaces with emphasis on ductile, brittle, and fatigue fracture with illustrations. It discusses microanalysis with a focus on the method of light microscopy and includes information of scanning electron microscope in fractography. The article also explains the characteristics of solidification, transformation, deformation structures, and discontinuities that are present in a microstructure. It concludes with information on image analysis.
This article describes the safety precautions required for using laboratory equipment. It reviews the various personal protective equipment specified on the Material Safety Data Sheets (MSDS) for laboratory chemicals and products. The article provides information on the storage and handling of etchants, solvents, acids, bases, and other chemicals. It describes the safety precautions and procedures for handling concentrated and dilute hydrofluoric acid. The article concludes with a discussion on the precautions to be followed in the event of spills and cleanup.
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