The control of ferrite grain size in ferrite-pearlitic steels, or of pearlite colony size in eutectoid steels, is obtained by controlling the austenite grain size. This can be achieved during following stages of processing steels: 1. During solidification 2. During mechanical working 3. During heat treatment. 1. During Solidification: Types of steels based on deoxidation practice- Plain carbon steel ingots [...]
In this article we will discuss about:- 1. Introduction of Austenitic Grain-Size of Steels 2. Actual Austenitic Grain Size of Steels 3. Importance 3. Effects 4. Austenitic Grain-Size Growth of Heating 5. Methods of Revealing. Contents: Introduction of Austenitic Grain-Size of Steels Actual Austenitic Grain Size of Steels Importance of Austenitic Grain-Size of Steels Effects of Austenitic Grain-Size of Steels [...]
Once the original austenite grain boundaries are revealed, the austenite grain size may be determined by one of the following methods suitable for the purpose. The name of the method used is always mentioned with the grain size specification. 1. ASTM Standard Grain Size Number: This is the most common method of measuring grain size, where the grain size is [...]