page_title: Martensite
hierarchical_section_title: Martensite
caption_attribution_description: Martensite in optical microscope. Taken in the course of my engineering career at The University of Texas at Austin. AISI 4140 steel austenitized at 850 degrees Celsius and then oil-quenched to room temperature.
context_page_description: Martensite is a very hard form of steel crystalline structure. It is named after German metallurgist Adolf Martens. By analogy the term can also refer to any crystal structure that is formed by diffusionless transformation.
context_section_description: Martensite is a very hard form of steel crystalline structure. It is named after German metallurgist Adolf Martens. By analogy the term can also refer to any crystal structure that is formed by diffusionless transformation.
caption: Martensite in AISI 4140 steel
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