INFLUENCE OF INITIAL TEXTURE ON THE MICROSTRUCTURAL INSTABILITIES DURING COMPRESSION OF COMMERCIAL ALPHA-TITANIUM AT 25-DEGREES-C TO 400-DEGREES-C

被引：32

作者：

KAILAS, SV ^{[1
]}

PRASAD, YVRK ^{[1
]}

BISWAS, SK ^{[1
]}

机构：

[1] INDIAN INST SCI,DEPT MET,BANGALORE 560012,KARNATAKA,INDIA

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 1994年 / 25卷 / 07期

关键词：

D O I：

10.1007/BF02665475

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Cylindrical specimens of textured commercial pure alpha-titanium plate, cut with the cylinder axis along the rolling direction for one set of experiments and in the long transverse direction for the other set, were compressed at strain rates in the range of 0.001 to 100 s-1 and temperatures in the range of 25-degrees-C to 400-degrees-C. At strain rates greater-than-or-equal-to 1 s-1, both sets of specimens exhibited adiabatic shear bands, but the intensity of shear bands was found to be higher in the rolling direction specimens than in the long transverse direction specimens. At strain rates -0.1 s-1, the material deformed in a microstructurally inhomogeneous fashion. For the rolling direction specimens, cracking was observed at 100-degrees-C and at strain rates -0.1 s-1. This is attributed to dynamic strain aging. Such cracking was not observed in the long transverse specimens. The differences in the intensity of adiabatic shear bands and that of dynamic strain aging between the two sets of test specimens are attributed to the strong crystallographic texture present in these plates.

引用

页码：1425 / 1434

页数：10

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