High Strain Rate Superplasticity in Aluminum Alloys via Friction Stir Processing
Friction stir processing (FSP) leads to very fine grained microstructure in aluminum alloys. This feature can be used as a means for achieving enhanced superplasticity at higher strain rates. Also, FSP can convert cast microstructure into superplastic microstructure in a single step. FSP aluminum alloys have less tendency towards cavitation compared to conventional superplastic alloys. These enhanced superplastic characteristics can be utilized in developing new manufacturing concepts like selective superplasticity, thick plate superplasticity and superplastic forging.
I. Charit et al., "High Strain Rate Superplasticity in Aluminum Alloys via Friction Stir Processing," Advances in Superplasticity and Superplastic Forming, The Minerals, Metals & Materials Society (TMS), Jan 2004.
Materials Science and Engineering
Keywords and Phrases
Abnormal Gain Growth; Aluminum Alloys; Cavitation; Friction Stir Processing; High Strain Rate Superplasticity
Article - Conference proceedings
© 2004 The Minerals, Metals & Materials Society (TMS), All rights reserved.