- Chemical Engineering Basics - Section 1
- Chemical Engineering Basics - Section 2
- Chemical Engineering Basics - Section 3
- Chemical Engineering Basics - Section 4
- Chemical Engineering Basics - Section 5
- Chemical Engineering Basics - Section 6
- Chemical Engineering Basics - Section 7
- Chemical Engineering Basics - Section 8
- Chemical Engineering Basics - Section 9
- Chemical Engineering Basics - Section 10
- Chemical Engineering Basics - Section 11
- Chemical Engineering Basics - Section 12
- Chemical Engineering Basics - Section 13
- Chemical Engineering Basics - Section 14
- Chemical Engineering Basics - Section 15
- Chemical Engineering Basics - Section 16
- Chemical Engineering Basics - Section 17
- Chemical Engineering Basics - Section 18
- Chemical Engineering Basics - Section 19
- Chemical Engineering Basics - Section 20
- Chemical Engineering Basics - Section 21
- Chemical Engineering Basics - Section 22
- Chemical Engineering Basics - Section 23
- Chemical Engineering Basics - Section 24
- Chemical Engineering Basics - Section 25
- Chemical Engineering Basics - Section 26
- Chemical Engineering Basics - Section 27
- Chemical Engineering Basics - Section 28


Chemical Engineering Basics - Engineering
Q1: In age-hardenable alloys, maximum ductility is obtainedA in as cast state.
B immediately after solution treatment and subsequent quenching.
C after optimum ageing.
D after overageing.
ANS:C - after optimum ageing. In age-hardenable alloys, maximum ductility is typically obtained after the optimum aging process. During the aging process, the alloy undergoes precipitation hardening, where fine particles of a second phase precipitate within the matrix, strengthening the material. However, excessive aging (overaging) can lead to the coarsening of these precipitates, which may result in reduced ductility and toughness. Therefore, the optimum aging process achieves a balance between strengthening and maintaining ductility, resulting in a material with improved mechanical properties. |


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