1998 Fiscal Year Final Research Report Summary
Semi-solid Plasticity of Nanocrystalline Cu-Mg-TiC Alloys Prepared By Mechanical Alloying
| Project/Area Number |
08650821
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Structural/Functional materials
|
|---|
| Research Institution | Himeji Institute of Technology |
|---|
Principal Investigator |
OGINO Yoshikiyo Himeji Institute of Technology, Dept.of Materials Sci.and Eng., Prof., 工学部, 教授 (10047574)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
YAMASAKI Toru Himeji Institute of Technology, Dept.of Materials Sci.and Eng., Assist.Prof., 工学部, 講師 (30137252)
|
|---|
| Project Period (FY) |
1996 – 1998
|
| Keywords | Nanocrystalline alloying / Superplasticity / Mechanical alloying / Copperalloying |
|---|
| Research Abstract |
Nanocrystalline Cu-Mg-TiC alloys with grain sizes of about 15 nm were prepared by mechanical alloying and tensile tested at temperatures at which partial melting occured. The elongation drastically increased as the melting occured, and maxi- mum elongations of about 200 pct were measured at temperatures where atomic fractions of liquid phase were about 0.5. After the deformation, nanocrytalline structures with average grain sizes of about 30 nm were retained.
|
