66 Martensite Transformation C C T Diagram Basics of Materials Engineering

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=PCaX3Ad6LPY

Welcome to 'Basics of Materials Engineering' course ! • This lecture continues the discussion on TTT and CCT diagrams, focusing on the martensite transformation. It describes martensite as a hard and brittle phase formed by a diffusionless, athermal transformation. It emphasizes that martensite transformation is temperature-dependent, not time-dependent, and occurs only during cooling. It explains the concept of tempering, a heat treatment process used to improve the toughness of martensite. It analyzes the microstructures obtained under different cooling conditions, comparing the effects of isothermal holding and continuous cooling. • NPTEL Courses permit certifications that can be used for Course Credits in Indian Universities as per the UGC and AICTE notifications. • To understand various certification options for this course, please visit https://nptel.ac.in/courses/112106293 • #MartensiteTransformation #AthermalTransformation #Tempering #MicrostructureAnalysis #CoolingRates

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