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What is the reason behind high strength of duralumin?
- a)Reduction in grain boundary area
- b)Interstitial solid solution alloying
- c)Precipitate hardening
- d)All of the above
Correct answer is option 'C'. Can you explain this answer?
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What is the reason behind high strength of duralumin?a)Reduction in gr...
The presence of dislocations weakens the crystal.
The hindrance in the dislocation motion increases the strength of the crystal.
Fine precipitates dispersed in the matrix provide such an impediment.
Strength of simple aluminium is 100 MPa while strength of duralumin with proper heat treatment (93.5% Al + 4.5% Cu + other alloying element) is around 500 MPa
The hindrance in the dislocation motion increases the strength of the crystal.
Fine precipitates dispersed in the matrix provide such an impediment.
Strength of simple aluminium is 100 MPa while strength of duralumin with proper heat treatment (93.5% Al + 4.5% Cu + other alloying element) is around 500 MPa
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What is the reason behind high strength of duralumin?a)Reduction in grain boundary areab)Interstitial solid solution alloyingc)Precipitate hardeningd)All of the aboveCorrect answer is option 'C'. Can you explain this answer?
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