(a)
Interpretation:
The interlamellar spacing and yield strength at 7000C needs to be determined.
Concept Introduction:
The steel with 4.3%c is called entectic steel. Steels lying between the composition 4.3%C to 6.67%C are called types- entectic steels. For steels containing pearlite, there is an important microstructural parameter known as the interlamellar spacing of pearlite. This is because, the content of pearlite increases towards a full microstructure of pearlite. In the ferrite-pearlite microstructure, as the amount of pearlite increases, the strength also increases, but the toughness and ductility decreases.
(b)
Interpretation:
The interlamellar spacing and yield strength at 6000C needs to be stated.
Concept Introduction:
The steel with 4.3%C is called entectic steel. Steels lying between the composition 4.3%C to 6.67%C are called types- entectic steels. For steels containing pearlite, there is an important microstructural parameter known as the interlamellar spacing of pearlite. This is because, the content of pearlite increases towards a full microstructure of pearlite. In the ferrite-pearlite microstructure, as the amount of pearlite increases, the strength also increases, but the toughness and ductility decreases.
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Essentials Of Materials Science And Engineering, Si Edition
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