The ways in which strengthening mechanisms contribute to the yield strength of a given steel, and how they can be used to create required combinations of strength and toughness of steels for a variety of structural applications will be examined.
Strengthening by Pearlite
Full Code
MET0205215
Module Type
E-learning
Description
As already described in the Tensile Testing module, at some small arbitrary strain, the steel Yield Strength is reached. If it is assumed that the yield strength of pearlite is much larger than that of ferrite, then plastic deformation at general yielding of the test piece will be confined to the ferrite phase. However, the yield strength of pearlite depends on different parameters. In this module the influence parameters in mechanical properties related with the pearlite phase will be exposed. After that, the model to predict Yield Strength will be introduced. Then, parameters like carbon, interlamellar spacing and ferrite fraction will be studied. Finally, grain boundary, dislocation line and microalloy carbides will be identified.
What you will learn
- List the influence parameters that affect the yield strength;
- Describe the Gladman model;
- Compare the experimental vs prediction models;
- Identify grain boundary, dislocation line and fine precipitate of microalloy carbides.
Module content
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