METHOD FOR HEAT-TREATING (ALPHA+BETA) TYPE TITANIUM ALLOY

PURPOSE:To provide an (alpha+beta) type titanium alloy excellent in strength, tough ness and ductility by executing a heat treatment in specified conditions. CONSTITUTION:When the (alpha+beta) type titanium alloy having a compsn. satisfying the conditions of following inequalities (1) to (6) and the...

Full description

Saved in:
Bibliographic Details
Main Authors KUBOYAMA OSAMU, OUCHI CHIAKI, NIIKURA MASAKAZU
Format Patent
LanguageEnglish
Published 09.03.1993
Subjects
ALLOYS
CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
Online AccessGet full text

Cover

More Information
Summary:PURPOSE:To provide an (alpha+beta) type titanium alloy excellent in strength, tough ness and ductility by executing a heat treatment in specified conditions. CONSTITUTION:When the (alpha+beta) type titanium alloy having a compsn. satisfying the conditions of following inequalities (1) to (6) and the balance Ti with inevitable impurities is applied to a solution annealing aging treatment, it is heated to a soln. annealing aging treatment temp. of >= the beta transformation point (Tbeta) and to less than the beta transformation point (Tbeta)+100 deg.C at >=2 deg.C/s heating rate, is held for <=5min and is thereafter cooled at >=2 deg.C/s cooling rate; where it contains 3.0<=Al<=5.0 (1), 2.1<=V<=3.7 (2), 0.85<=Fe<=3.15 (3), 0.85<=Mo<=3.15 (4) and 0.06<=O<=0.20 (5) as well as 80<=20x (Fe)+13x (V)+10x (Mo)<=130 (6).
Bibliography:Application Number: JP19910219557