Title:
METHOD FOR PRODUCING A HIGH-STRENGTH AND HIGHLY DUCTILE TITANIUM ALLOY
Document Type and Number:
WIPO Patent Application WO/2011/078600
Kind Code:
A2
Abstract:
Disclosed is a method for producing a high-strength and highly ductile titanium alloy. The method for producing a high-strength and highly ductile titanium alloy comprises the following steps: providing a titanium alloy having a martensitic structure; and partially and dynamically spheroidizing a microstructure of said titanium alloy having a martensitic structure through heat and mechanical treatments. The method of the present invention produces a titanium alloy having a partially and dynamically spheroidized microstructure, and provides the titanium alloy with superior yield strength (YS) and uniform elongation (U.EL). The method of the present invention involves adjusting a rolling direction and deformation with respect to a layered microstructure, and thus enables the microstructure to have a micro-equiaxial structure and a layered structure coexisting therein. The method of the present invention can produce a titanium alloy having an improved product of yield strength and uniform elongation (YS×U.EL) as compared to conventional heat treatment methods.
More Like This:
Inventors:
LEE, Chong-Soo (9-1401, Gyosu Apt.Jigok-dong, Nam-g, Pohang-si Kyeongsangbuk-do 790-751, 790-751, KR)
이종수 (경상북도 포항시 남구 지곡동 교수아파트 9동 1401호, 790-751 Kyeongsangbuk-do, 790-751, KR)
LEE, You Hwan (POSCO, Dongchon-dong Nam-g, Pohang-si Gyeongsangbuk-do 790-785, 790-785, KR)
이유환 (경상북도 포항시 남구 동촌동 포스코, 790-785 Gyeongsangbuk-do, 790-785, KR)
이종수 (경상북도 포항시 남구 지곡동 교수아파트 9동 1401호, 790-751 Kyeongsangbuk-do, 790-751, KR)
LEE, You Hwan (POSCO, Dongchon-dong Nam-g, Pohang-si Gyeongsangbuk-do 790-785, 790-785, KR)
이유환 (경상북도 포항시 남구 동촌동 포스코, 790-785 Gyeongsangbuk-do, 790-785, KR)
Application Number:
KR2010/009272
Publication Date:
June 30, 2011
Filing Date:
December 23, 2010
Export Citation:
Assignee:
POSTECH ACADEMY-INDUSTRY FOUNDATION (San 31, Hyoja-dong Nam-k, Pohang-city Kyungsangbuk-do 790-784, 790-784, KR)
포항공과대학교 산학협력단 (경상북도 포항시 남구 효자동 산31, 790-784 Kyungsangbuk-do, 790-784, KR)
LEE, Chong-Soo (9-1401, Gyosu Apt.Jigok-dong, Nam-g, Pohang-si Kyeongsangbuk-do 790-751, 790-751, KR)
이종수 (경상북도 포항시 남구 지곡동 교수아파트 9동 1401호, 790-751 Kyeongsangbuk-do, 790-751, KR)
LEE, You Hwan (POSCO, Dongchon-dong Nam-g, Pohang-si Gyeongsangbuk-do 790-785, 790-785, KR)
포항공과대학교 산학협력단 (경상북도 포항시 남구 효자동 산31, 790-784 Kyungsangbuk-do, 790-784, KR)
LEE, Chong-Soo (9-1401, Gyosu Apt.Jigok-dong, Nam-g, Pohang-si Kyeongsangbuk-do 790-751, 790-751, KR)
이종수 (경상북도 포항시 남구 지곡동 교수아파트 9동 1401호, 790-751 Kyeongsangbuk-do, 790-751, KR)
LEE, You Hwan (POSCO, Dongchon-dong Nam-g, Pohang-si Gyeongsangbuk-do 790-785, 790-785, KR)
International Classes:
B21B3/00; C22C1/00; C22C14/00
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (Seolim Bldg, 649-10Yoksam-dong, Kangnam-ku, Seoul 135-080, 135-080, KR)
Download PDF: