DEFORMATION AND FRACTURE OF METASTABLE BETA TITANIUM-ALLOYS (TI-15MO-5ZR AND TI-15MO-5ZR-3AL)

被引：16

作者：

HANADA, S

IZUMI, O

机构：

来源：

TRANSACTIONS OF THE JAPAN INSTITUTE OF METALS | 1982年 / 23卷 / 02期

关键词：

D O I：

10.2320/matertrans1960.23.85

中图分类号：

TF [冶金工业];

学科分类号：

0806 [冶金工程];

摘要：

Although mechanical twinning is suppressed by initial aging, considerable ductility is attained in Ti-15Mo-5Zr hardened by aging at 573 K for 1. 2 ks. Reduction in macroscopic ductility on further aging is related to inhomogeneous slip. Embrittled Ti-15Mo-5Zr exhibits a ductile, dimple type fracture surface. On the other hand, mechanical twinning is not induced in as-quenched Ti-15Mo-5Zr-3Al. The alloy is embrittled by precipitation of alpha -phase on aging at 623 K and shows a mixture of intergranular and dimple type fracture surface. Ductility of metastable beta -Ti alloys is discussed.

引用

页码：85 / 94

页数：10

共 23 条

[1]

BLACKBURN MJ, 1971, J I MET, V99, P132

[2]

Bowen A. W., 1980, TITANIUM 80 SCI TECH, P1317

[3]

OMEGA PHASE EMBRITTLEMENT IN AGED TI-15 PERCENT MO [J].