Metallurgy Training

Lesson 1 • Atomic Structure and Metallic Bonding

Covers electron configuration, metallic bond formation, and how bonding determines conductivity and ductility. Anchors all subsequent structure-property discussions.

Lesson 2 • Fundamental Mechanical Properties

Defines stress, strain, hardness, toughness, and fatigue resistance with standard test methods. Establishes the property vocabulary used in every subsequent chapter.

Lesson 3 • Crystal Structures in Metals

Explains BCC, FCC, and HCP lattice arrangements and their influence on mechanical behavior. Links crystal geometry to real-world forming and fracture tendencies.

Lesson 4 • Classification of Engineering Metals

Surveys ferrous, non-ferrous, and refractory metal families with defining properties. Provides the taxonomy used throughout the course.

Lesson 1 • Steel Classification and Designation Systems

Explains carbon, alloy, stainless, and tool steel categories using standard designation logic. Enables correct material specification in engineering practice.

Lesson 2 • Microstructural Constituents of Steel

Identifies ferrite, austenite, cementite, pearlite, and bainite with their formation conditions. Connects each constituent to specific mechanical property profiles.

Lesson 3 • Alloying Elements and Their Effects

Analyzes how Mn, Cr, Ni, Mo, V, and Si modify steel microstructure and hardenability. Prepares students for alloy steel selection and heat treatment design.

Lesson 4 • Cast Iron Types and Properties

Distinguishes gray, white, ductile, and malleable cast irons by microstructure and application. Extends iron-carbon knowledge to high-carbon engineering materials.

Lesson 1 • Solid Solution and Precipitation Strengthening

Quantifies substitutional and interstitial solid solution effects and coherent precipitate strengthening. Enables alloy composition design for specific strength targets.

Lesson 2 • Work Hardening and Recovery

Explains dislocation multiplication, pile-up, and the recovery-recrystallization-grain growth sequence. Connects cold working degree to strength and ductility trade-offs.

Lesson 3 • Dislocation Theory and Slip Systems

Introduces edge, screw, and mixed dislocations with Burgers vector and slip plane analysis. Provides the microscopic basis for all plastic deformation phenomena.

Lesson 4 • Deformation Modes Beyond Slip

Covers twinning, martensitic transformation plasticity, and superplasticity as alternative deformation mechanisms. Extends understanding to HCP metals and TRIP steels.

Lesson 1 • Hardenability Testing and Jominy Analysis

Uses the Jominy end-quench test to quantify hardenability and compare steel grades. Links hardenability data to section size and quench severity in design.

Lesson 2 • TTT and CCT Diagrams

Reads time-temperature-transformation and continuous cooling transformation diagrams to predict microstructure outcomes. Enables cooling rate selection for desired phase products.

Lesson 3 • Tempering and Stress Relief

Explains tempering stages, carbide precipitation, and the hardness-toughness trade-off. Addresses residual stress reduction without sacrificing core strength.

Lesson 4 • Principles of Austenitizing and Quenching

Covers austenitizing temperature selection, soaking time, and quench media effects on martensite formation. Establishes the thermal cycle foundation for all hardening processes.

Lesson 5 • Surface Hardening Techniques

Covers carburizing, nitriding, carbonitriding, induction, and flame hardening with depth-of-case control. Addresses applications requiring hard surfaces with tough cores.

Lesson 1 • Nickel and Superalloy Systems

Covers nickel-based superalloy strengthening mechanisms including gamma-prime precipitation and solid solution hardening. Prepares students for high-temperature turbine and reactor applications.

Lesson 2 • Titanium Alloys and Phase Structures

Distinguishes alpha, beta, and alpha-beta titanium alloys by microstructure and mechanical behavior. Targets aerospace, biomedical, and chemical processing applications.

Lesson 3 • Copper and Copper Alloy Systems

Examines brass, bronze, cupronickel, and beryllium copper with their processing and properties. Addresses electrical, marine, and bearing application requirements.

Lesson 4 • Magnesium and Other Light Metals

Surveys magnesium, beryllium, and lithium alloys with their density advantages and processing constraints. Addresses flammability, toxicity, and corrosion management in service.

Lesson 1 • Corrosion Testing and Monitoring

Applies salt spray, immersion, electrochemical impedance, and linear polarization tests to quantify corrosion rates. Supports maintenance scheduling and material qualification.

Lesson 2 • Forms of Corrosion and Recognition

Identifies uniform, galvanic, crevice, pitting, intergranular, and stress corrosion cracking by visual and analytical features. Enables accurate field and laboratory diagnosis.

Lesson 3 • High-Temperature Oxidation and Hot Corrosion

Covers oxide scale formation, Pilling-Bedworth ratio, and sulfidation attack in hot gas environments. Addresses turbine, furnace, and refinery component degradation.

Lesson 4 • Electrochemical Basis of Corrosion

Explains oxidation-reduction reactions, galvanic series, and mixed potential theory in corrosion cells. Provides the thermodynamic and kinetic framework for all corrosion analysis.

Lesson 1 • Systematic Failure Investigation Process

Applies a structured methodology: evidence collection, non-destructive examination, metallographic analysis, and root cause determination. Produces defensible failure analysis reports.

Lesson 2 • Fracture Mechanics Fundamentals

Introduces stress intensity factor K, fracture toughness K_IC, and the Griffith crack criterion. Provides the quantitative basis for flaw tolerance and safe-life design.

Lesson 3 • Ductile and Brittle Fracture Modes

Distinguishes ductile dimple rupture from cleavage and intergranular brittle fracture using fractographic features. Connects fracture mode to temperature, rate, and microstructure.

Lesson 4 • Fatigue Failure Analysis

Analyzes S-N curves, fatigue crack initiation, propagation, and beach mark interpretation. Addresses surface finish, stress concentration, and mean stress effects on fatigue life.

Lesson 1 • Fusion Welding Metallurgy

Examines weld pool solidification, heat-affected zone microstructure, and hydrogen-induced cracking. Connects preheat, interpass temperature, and post-weld heat treatment to weld quality.

Lesson 2 • Solid-State and Specialty Joining Methods

Covers friction welding, diffusion bonding, brazing, and soldering with their metallurgical mechanisms. Addresses dissimilar metal joining and intermetallic compound formation.

Lesson 3 • Casting Processes and Solidification

Compares sand, investment, die, and continuous casting with solidification structure outcomes. Addresses shrinkage, porosity, segregation, and hot tearing defect control.

Lesson 4 • Bulk Forming Processes and Microstructure

Covers rolling, forging, extrusion, and drawing with their effects on grain flow, texture, and mechanical properties. Links process parameters to final component performance.

Lesson 5 • Sheet Metal Forming and Formability

Analyzes deep drawing, stamping, and stretch forming using forming limit diagrams and anisotropy ratios. Addresses springback, wrinkling, and tearing defect prevention.