ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract The differential scanning calorimetry (DSC) technique has been used to examine the precipitation process in the commercial Al-Zn-Mg-Cu alloy AA-7075. In general the results are in good agreement with previous DSC data on a similar alloy and can be related to the precipitation process observed by electron microscopy. However, an additonal precipitation process has been detected at low temperatures, which is usually masked by coarsening and dissolution of Guinier-Preston (G-P) zones formed during room-temperature ageing. This precipitate, which is referred to as the “precursor” to η′ after Lyman et al., does not redissolve on going to higher temperatures and is an important step in the ageing process in these alloys.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00540811
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