MECHANICAL-PROPERTIES OF AN IN-SITU SYNTHESIZED NB/NB3AL LAYERED COMPOSITE

被引：23

作者：

CAO, HC

LOFVANDER, JPA

EVANS, AG

ROWE, RG

SKELLY, DW

机构：

[1] UNIV CALIF SANTA BARBARA,COLL ENGN,DEPT MAT,SANTA BARBARA,CA 93106

[2] GE CO,GE CORP RES & DEV,SCHENECTADY,NY 12309

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1994年 / 185卷 / 1-2期

关键词：

D O I：

10.1016/0921-5093(94)90931-8

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A layered metal/intermetallic, consisting of Nb and Nb3Al, has been synthesized using a high rate magnetron sputtering technique. The microstructure and various mechanical properties have been explored. It is demonstrated that the Nb phase contributes substantially to the toughness, through plastic dissipation, combined with frictional sliding at contacting surfaces. However, the toughness is suboptimal, because of the small layer thickness, which limits the width of the plastic zone. The tensile strength is also relatively low, because of growth defects. Some concepts for improving the strength and fracture resistance by tailoring the constituent and interface properties are suggested.

引用

页码：87 / 95

页数：9

共 21 条

[1]

ANTON DL, 1990, MATER RES SOC SYMP P, V194, P45, DOI 10.1557/PROC-194-45

[2] THE DEFORMATION AND FRACTURE OF CONSTRAINED METAL SHEETS [J].