ACCELERATION OF ALPHA-PRECIPITATION AND STRENGTHENING OF TI-15V-3CR-3SN-3AL ALLOY BY 2 STEP AGING

被引：14

作者：

OKADA, M

机构：

[1] Sumitomo Metal Industries, Ltd

来源：

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN | 1990年 / 76卷 / 04期

关键词：

D O I：

10.2355/tetsutohagane1955.76.4_614

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Acceleration of α precipitation and strengthening of metastable β titanium alloy by 2-step aging was investigated. The alloy shows a phase separation of β phase in low temperature aging at 573 K after β solution treatment. Precipitation of small particles of α phase in second stage high temperature aging was accelerated by phase separation in which β′ phase precipitates because β′ precipitates provide the nucleation sites of α precipitates. Higher strength by shorter total aging time could be attained by 2-step aging in the combination of 1st step aging of 573 K, (14.4-28.8)ks aging and 2nd step aging of (753-813)K, (3.6-86.4) ks aging.

引用

页码：614 / 621

页数：8

共 8 条

[1]

[Anonymous], 1973, TITANIUM SCI TECHNOL

[2] DEFORMATION BEHAVIOR OF AGE-HARDENED TI-MO ALLOYS [J].

GYSLER, A ;

LUTJERING, G ;

GEROLD, V .

ACTA METALLURGICA, 1974, 22 (07) :901-909

[3]

Izumi O., 1980, TITANIUM 80 SCI TECH, P1343

[4] DECOMPOSITION OF METASTABLE BETA PHASE IN ALL-BETA ALLOY TI-13V-11CR-3AL [J].

NARAYANAN, GH ;

ARCHBOLD, TF .

METALLURGICAL TRANSACTIONS, 1970, 1 (08) :2281-+

[5]

Okada M., 1985, TITANIUM SCI TECHNOL, P1835

[6]

OKADA M, 1988, 6TH P WORLD C TIT, P1269

[7]

REINISCH WA, 1980, METAL PROGR, V118, P64

[8]

WILLIAMS JC, 1971, METALL TRANS, V2, P1913

← 1 →