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Grain Size Strengthening
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Grain Size Strengthening

Explore how grain size impacts steel properties using MLI, ASTM, and Hall-Petch methods across measurement and strengthening modules.

Ferrous Metallurgy
Grain Size Strengthening
Ferrous Metallurgy
steeluniversity
steeluniversity

Ferrous Metallurgy

2.5 hours
7 lessons
8.6/10 (39)
211

Description

Designed for learners in metallurgy, materials science, and mechanical engineering, this course provides an in-depth exploration of grain size measurement techniques and strengthening mechanisms in steels. Through five structured modules, learners progress from foundational concepts of grain boundary analysis and quantitative metallography to advanced mechanical property predictions using grain-dependent models. The course emphasizes both the Mean Linear Intercept (MLI) and ASTM methods, and introduces the Hall-Petch theory to explain the influence of grain size on yield strength, toughness, and Ultimate Tensile Strength (UTS). Real-world studies and equations, such as those from Mintz, Baird & Cochrane, support analytical skills development and the application of metallurgical theory. Ideal for engineers and scientists aiming to quantify microstructural features and link them to mechanical performance in structural metals.

Course content

Introduction and Grain Size - MET0201205
EN ES RU CN
Grain Shape and MLI - MET0201210
EN ES RU CN
Measurement Method. Effect on Yield Strength – Summary and Extent - MET0201215
EN ES RU CN
Grain Size Strengthening Mechanisms - MET0201220
EN ES RU CN
Grain Size, Toughness and Ultimate Tensile Strength - MET0201225
EN ES RU CN
Final Exam - MET0201500
EN ES RU CN
Certificate - MET0201550
EN ES RU CN

Learning Outcomes

  • Understands variation, trend analysis, and basic data interpretation.
    2
  • Understands variation, trend analysis, and basic data interpretation.
    2

  • Demonstrates solid knowledge of the analytical technique/s and is able to carry out the necessary tests with minimal direction.
    2
  • Is able to carry out basic calibration of any assocaited kit and can interpret routine data associated with the test.
    2
  • Has a basic understanding of measurement variation (MSA, R&R).
    2
  • Demonstrates solid knowledge of the analytical technique/s and is able to carry out the necessary tests with minimal direction.
    2
  • Has a basic understanding of measurement variation (MSA, R&R).
    2
  • Demonstrates expert knowledge of the analytical technique/s and can apply the skill in new and complex situations.
    3
  • Is able to carry out basic calibration of any assocaited kit and can interpret routine data associated with the test.
    2
  • Has a solid understanding of measurement variation and can carry out R&R studies.
    3

  • Understands the basics of metallurgy, including the structure and properties of metals.
    1
  • Able to analyse steel microstructures to assess material properties.
    2
  • Understands the basics of metallurgy, including the structure and properties of metals.
    1
  • Understands the principles of alloying to create steel with desired properties.
    2
  • Able to analyse steel microstructures to assess material properties.
    2
  • Able to select and design steel alloys for specific applications, considering factors like strength, corrosion resistance, and heat resistance.
    3

  • Measure chemical properties and microstructure of metals for suitability assessment
    2
  • Measure chemical properties and microstructure of metals for suitability assessment
    2
  • Conduct tensile tests, hardness and impacts tests of metals
    1
  • Measure mechanical properties of metals for suitability assessment
    2

  • Can explain technical specifications related to steel, including ASTM standards, grades, and tolerances, and how they apply to engineering applications.
    2

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