ISSN:
1573-8973
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Conclusions 1. Under certain temperature-rate conditions alloy 1201 is converted to the superplastic condition. For hot extruded strips (λ=23.4) the superplastic effect is evident at 500° with a deformation rate of (2.2–4.4)×10−3 sec−1. In this case, σ20 = 15−20 MPa, δ = 160–170%, and m=0.45. 2. The optimal structure ensuring the superplastic effect is a polygonized structure formed before superplastic deformation begins. 3. To achieve the superplastic effect in alloy 1201 the temperature and rate of deformation must ensure dynamic recrystallization processes with formation of a fine-grained structure.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00769612
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