TY - JOUR
T1 - Low-Temperature and high-Strain-Rate superplasticity of ultrafine-Grained A7075 processed by high-Pressure torsion
AU - Lee, Seungwon
AU - Watanabe, Katsumi
AU - Matsuda, Kenji
AU - Horita, Zenji
N1 - Funding Information:
This work was supported in part by the Light Metals Educational Foundation of Japan and in part by a Grant-in-Aid for Scientific Research (S) from the MEXT, Japan (No. 26220909). The HPT process was carried out in the International Research Center on Giant Straining for Advanced Materials (IRC-GSAM) at Kyushu University.
PY - 2018
Y1 - 2018
N2 - An A7075 alloy was processed by high-pressure torsion (HPT) under an applied pressure of 6 GPa for 1, 3 and 5 revolutions with a rotation speed of 1 rpm at room temperature. Vickers microhardness saturated to a level of 220 Hv after the HPT processing and the grain size was refined to 3120 nm at the state of the hardness saturation. Tensile tests were conducted with initial strain rates from 2.0
AB - An A7075 alloy was processed by high-pressure torsion (HPT) under an applied pressure of 6 GPa for 1, 3 and 5 revolutions with a rotation speed of 1 rpm at room temperature. Vickers microhardness saturated to a level of 220 Hv after the HPT processing and the grain size was refined to 3120 nm at the state of the hardness saturation. Tensile tests were conducted with initial strain rates from 2.0
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U2 - 10.2320/matertrans.L-M2018825
DO - 10.2320/matertrans.L-M2018825
M3 - Article
AN - SCOPUS:85051015092
VL - 59
SP - 1341
EP - 1347
JO - Materials Transactions
JF - Materials Transactions
SN - 0916-1821
IS - 8
ER -