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1. (WO2019039298) ARTIFACT-FREE SUPERELASTIC ALLOY
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/039298 International Application No.: PCT/JP2018/029910
Publication Date: 28.02.2019 International Filing Date: 09.08.2018
IPC:
C22C 5/02 (2006.01) ,C22C 30/02 (2006.01) ,C22F 1/02 (2006.01) ,C22F 1/14 (2006.01) ,A61L 31/02 (2006.01) ,C22F 1/00 (2006.01)
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
5
Alloys based on noble metals
02
Alloys based on gold
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
30
Alloys containing less than 50% by weight of each constituent
02
containing copper
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
F
CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS
1
Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
02
in inert or controlled atmosphere or vacuum
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
F
CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS
1
Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
14
of noble metals or alloys based thereon
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
L
METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
31
Materials for other surgical articles
02
Inorganic materials
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
F
CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS
1
Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
Applicants:
国立大学法人東京工業大学 TOKYO INSTITUTE OF TECHNOLOGY [JP/JP]; 東京都目黒区大岡山2-12-1 2-12-1,Ookayama, Meguro-ku, Tokyo 1528550, JP
田中貴金属工業株式会社 TANAKA KIKINZOKU KOGYO K.K. [JP/JP]; 東京都千代田区丸の内2丁目7番3号 7-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1006422, JP
Inventors:
細田 秀樹 HOSODA Hideki; JP
海瀬 晃 UMISE Akira; JP
後藤 研滋 GOTO Kenji; JP
Agent:
特許業務法人田中・岡崎アンドアソシエイツ TANAKA AND OKAZAKI; 東京都文京区本郷3丁目30番10号 本郷K&Kビル Hongo K&K Bldg., 30-10, Hongo 3-chome, Bunkyo-ku, Tokyo 1130033, JP
Priority Data:
2017-15955422.08.2017JP
Title (EN) ARTIFACT-FREE SUPERELASTIC ALLOY
(FR) ALLIAGE SUPERÉLASTIQUE SANS ARTÉFACT
(JA) アーチファクトレスな超弾性合金
Abstract:
(EN) The present invention is an artifact-free superelastic alloy which is made of an Au-Cu-Al alloy, is composed of 20 to 40 atomic percent of Cu, 15 to 25 atomic percent of Al, and the balance Au, and has a volume magnetic susceptibility of -24 to 6 ppm. This Ni-free superelastic alloy is an alloy capable of exhibiting superelasticity in a normal temperature range and is such that artifacts are less likely to be generated in a magnetic field environment. This alloy can be produced by carrying out casting for a fixed period of time during a melting and casting process, and hot-pressing the casted alloy and homogenizing the material structure.
(FR) L'invention concerne un alliage superélastique sans artéfact qui est constitué d'un alliage Au-Cu-Al, plus précisément, de 20% at ou plus à 40% at ou moins de Cu, de 15% at ou plus à 25% at ou moins de Al, et de Au pour le reste, et qui présente une susceptibilité en vrac supérieure ou égale à -24ppm et inférieure ou égale à 6ppm. Plus précisément, l'invention concerne un alliage superélastique sans Ni qui permet d'exprimer des propriétés de superélasticité dans une plage de température normale, et qui est peu susceptible de générer un artéfact à l'intérieur d'un environnement à champ magnétique. Cet alliage peut être fabriqué en homogénéisant une structure de matériau par pressage à chaud d'alliage après coulée, tout en faisant du temps de coulée lors d'une étape de fonte et coulée un temps constant.
(JA) 本発明は、Au-Cu-Al合金からなる超弾性合金であって、20原子%以上40原子%以下のCuと、15原子%以上25原子%以下のAlと、残部Auとからなり、更に、体積磁化率が-24ppm以上6ppm以下であるアーチファクトレスな超弾性合金である。本発明のNiフリーの超弾性合金は、常温域での超弾性を発現可能であり、磁場環境内でのアーチファクトが生じ難い合金である。この合金は、溶解鋳造工程における鋳造時間を一定時間とすると共に、鋳造後の合金をホットプレス処理して材料組織の均質化を図ることで製造することができる。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)