Mind map
precipitation hardening
Map content
precipitation hardening
main strengthening mechanism for the alloy
three stages
- solution treatment
- heat alloy above 500 degrees c
- above solute line, into single phase region-full alpha
- heat alloy above 500 degrees c
- quneching
- rapid cool in water
- rapid-obtain maximum super saturation of alloying elements
- enable you to get a super saturated solid solution
- prevents formation of equilibrium stages
- enable you to get a super saturated solid solution
- rapid-obtain maximum super saturation of alloying elements
- rapid cool in water
- ageing
- decomposition process of SSSS
- get finely dispersed precipitates + GP zones, (theta '')
- max yield strength
- GP and theta''=coherent with matrix
- obstruct dislocation, increasing resistance to deformation= harder metal
- get finely dispersed precipitates + GP zones, (theta '')
- can overage, theta',theta, incoherent, dislocation bow between precipitates
- decomposition process of SSSS
- solution treatment
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- Mind Map on precipitation hardening, created by Tom Piggott on 31/05/2015.
- Created by
- Tom Piggott
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