Abstract
Texture strengthening analyses for cubic metals predict enhanced deep drawing performance with {110} and/or {111} components in the plane of the sheet. Since {110}<112> is the primary texture in heavily cold rolled α-brass, an attempt was made to retain this texture through recovery of the cold rolled material at low temperatures. A second approach is suggested by the observation of the {110} texture in α-brass on annealing ≳600°C (873°K), and involves short time exposures to limit grain size. It is found that low temperature recovery treatments, while partially retaining the rolling texture, produce a hard condition of low drawability. High temperature annealing produces appreciable {110} textural components only at grain sizes too large for many commercial applications. A potentially more tractable approach is discussed.
Highlights
It is generally accepted that the drawability of sheet material depends in part on the crystallographic texture present
The first is based on the concept of annealing the cold-rolled material at low temperatures in order to recover sufficient ductility for drawing but without allowing recrystallization to take place
To maintain a grain size compatible with commercial applications, exposure times in the hightemperature range must be short. These two approaches of long-time low temperature recovery and short-time high-temperature recrystallization were evaluated in e-brass with respect to drawability
Summary
Abstract" Texture strengthening analyses for cubic metals predict enhanced deep drawing performance with {Ii0} and/or {iii} components in the plane of the sheet. Since {110} is the primary texture in heavily cold rolled a-brass, an attempt was made to retain this texture through recovery of the cold rolled material at low temperatures. A second approach is suggested by the observation of the {ii0}. Texture in s-brass on annealing >600C (873K), and involves short time exposures to limit grain size. It is found that low temperature recovery treatments, while partially retaining the rolling texture, produce a hard condition of low drawability. High temperature annealing produces appreciable {ii0} textural components only at grain sizes too large for many commercial applications. A potentially more tractable approach is discussed
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