OBSERVATION OF CRACK-PROPAGATION IN AMORPHOUS AL88CE2NI9FE CONTAINING NANOSCALE

2020-03-27 17:24:59

properties Japan crystals nanoscale Mat

责任者: TANAKA, Y;TSUNEMI, K;OMATA, S;SATO, A;INOUE, A 单位: TOKYO INST TECHNOL,DEPT MAT SCI & ENGN,MIDORI KU,YOKOHAMA,KANAGAWA 227,JAPAN.;TOHOKU UNIV,INST MAT RES,AOBA KU,SENDAI,MIYAGI 980,JAPAN. 来源出处: PHILOSOPHICAL MAGAZINE LETTERS, v 71, MAR 1995, p 179- 184 摘要: Amorphous alloys containing nanoscale crystals have been deformed in situ in a high-voltage electron microscope. Acceleration in the nucleation and growth of nanoscale crystals has been found at a crack tip during ageing under stress. It has also been revealed that the nanoscale crystals are free from lattice defects after deformation to cracking. These observations suggest that the presence of non-deformable nanoscale crystals plays an important role in the strengthening of amorphous alloys. 关键词: CARBON; DEPOSITION PROCESS; FULLERENES; NANOSTRUCTURES; OPTICAL PROPERTIES PROPERTIES; PLASTIC-FLOW; ALLOYS; DEFORMATION; FRACTURE