发明名称 |
METHOD OF MANUFACTURE OF PLATES FROM TITANIUM ALLOYS |
摘要 |
non- ferrous metallurgy; thermomechanical treatment of titanium alloys; manufacture of plates from slabs which are stamped or forged in beta-field by hot lengthwise rolling lengthwise-and-cross rolling. SUBSTANCE: proposed method consists in preliminary two-stage rolling; at first stage, slab is heated to temperature below polymorphic transformation temperature by 30 to 40 C and at reduction of 3 to 6% to total degree of strain of 20 to 30%; at second stage, rolling is effected to total degree of strain of 15 to 90% accompanied by heating the workpiece before beginning of strain to temperature which exceeds polymorphic transformation temperature by 60 to 130 C; final rolling is effected in ((alpha+beta)) field in 2 to 4 steps at total degree of strain in one direction not exceeding 75% at temperature of work-piece below polymorphic transformation temperature by 30 to 200 C before each rolling procedure. Before final rolling, work-piece is subjected to annealing at temperature below polymorphic transformation temperature by 30 to 50 C. EFFECT: possibility of manufacture of plates of highest quality at homogeneous fine-grained macro- and microstructure; high stable parameters of mechanical and servicing properties; anisotropy. 2 cl, 1 tbl, 2 ex
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申请公布号 |
RU2169791(C2) |
申请公布日期 |
2001.06.27 |
申请号 |
RU19990121526 |
申请日期 |
1999.10.14 |
申请人 |
E METALLURGICHESKOE PROIZVODSTVENNOE OB"EDINENIE;METALL PROIZV OB E |
发明人 |
TETJUKHIN V.V.;LEVIN I.V.;KOZLOV A.N.;SUSLOVA M.A.;TOLMACHEVA O.N.;LISENKOV N.P. |
分类号 |
C22F1/18;(IPC1-7):C22F1/18 |
主分类号 |
C22F1/18 |
代理机构 |
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代理人 |
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地址 |
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