WO2007029897A1 - Composition d'un alliage de titane renforce par precipitation du carbure et son procede de traitement thermique - Google Patents

Composition d'un alliage de titane renforce par precipitation du carbure et son procede de traitement thermique Download PDF

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Publication number
WO2007029897A1
WO2007029897A1 PCT/KR2005/002984 KR2005002984W WO2007029897A1 WO 2007029897 A1 WO2007029897 A1 WO 2007029897A1 KR 2005002984 W KR2005002984 W KR 2005002984W WO 2007029897 A1 WO2007029897 A1 WO 2007029897A1
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WO
WIPO (PCT)
Prior art keywords
carbide
heat treatment
titanium
titanium alloy
composition
Prior art date
Application number
PCT/KR2005/002984
Other languages
English (en)
Inventor
Youn-Soo Bae
Original Assignee
Hanmaun Energy Science Institute Co.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hanmaun Energy Science Institute Co. filed Critical Hanmaun Energy Science Institute Co.
Priority to PCT/KR2005/002984 priority Critical patent/WO2007029897A1/fr
Publication of WO2007029897A1 publication Critical patent/WO2007029897A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C14/00—Alloys based on titanium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
    • C22F1/18—High-melting or refractory metals or alloys based thereon
    • C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon

Definitions

  • the present invention relates to a composition of a titanium alloy and a
  • carbide precipitation strengthening heat treatment method including a step type
  • titanium alloy is heat-treated based on a solution heat-treatment method at a
  • titanium is light with its low viscosity and has a relatively low tensional strength as compared to steel. In order to enhance strength,
  • tensional strength of titanium is enhanced based on a heat treatment sequence
  • the alloy ingot structure in a desired shape.
  • treatment 3 is performed at a certain temperature like a hot work temperature by
  • an aging heat treatment 4 is performed at 425 ⁇ 650°C, so that a
  • HCP structure
  • strengthening heat treatment may be performed for thereby obtaining a desired
  • a recovery may be impossible when a mechanical impact is applied or a thermal
  • carbide is precipitated in fine and uniform shapes.
  • a desired ingot can be fabricated
  • titanium alloy by 0.1% ⁇ 2% with the titanium alloy being fabricated by adding a
  • substitution type element Al and carbide affinity element such as V, Mo, Cr, Si, Ni,
  • the tensile strength of the transformed alloy structure is enhanced based on
  • elongation of a titanium alloy can be enhanced based on strengthened solidification
  • Figure 1 is a curve of a heat treatment of a conventional titanium alloy
  • Figure 2 is a mechanical characteristic curve formed when carbon is added to titanium
  • Figure 3 is a curve of a hardness based on carbide
  • Figure 4 is a curve of a heat treatment for strengthening a carbide
  • Figure 2 is a mechanical characteristic curve which changes based on the
  • An elongation 25 has a
  • Figure 3 is a view of a hardness comparison of elements, which form
  • a vanadium carbide element (VC, V4C 3 ) 31 has a highest hardness value (2,350KNOOP).
  • Second is a (CrFe)C 3 32 of 1 ,600KNOOP.
  • Third is
  • Figure 4 is a curve formed based on a heat treatment method of a carbide
  • Ti-2Fe-8Cr-10V-5Mo-3AI-0.5C is formed as an ingot.
  • the ingot is shaped based on
  • a solution heat treatment 43 is performed so as to re-penetrate alloy elements into
  • the carbide element which is transformed in an alloy structure during a cooling process, is precipitated, and a re-penetration is performed.
  • step type carbide precipitation strengthened aging heat treatment 250°C heat is
  • step 45 the temperature is increased to 450°C, and the process is maintained for a
  • carbide can be refined and uniformed. Since carbons
  • a cold work process may be performed between the solution heat treatment and the aging heat treatment and the step type aging heat
  • the alloy of Ti-2Fe-8Cr-10V-5Mo-3AI-0.5C which is a kind of a carbide
  • precipitation strengthened titanium alloy is fabricated according to the present
  • the titanium alloy of Ti-5V-4Mo-1AI-0.37C is a
  • an induction heat solution can be easily performed with a high frequency.
  • a low cost vacuum solution furnace can be used to reduce Electricity consumption.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

L'invention porte sur une composition d'alliage de titane et sur son procédé de traitement thermique. Selon ce procédé, on ajoute au titane, dans une quantité de plus de 0,1-2 % environ d'un élément de substitution, et on ajoute à un élément de formation du carbure, dans cette même quantité, un carbone élémentaire interstitiel pour fabriquer un produit de coulée. Puis, on réalise, par un traitement thermique d'une solution, une structure subie au formage d'un joint de grain formé par corroyage afin de préparer le produit de coulée dans une structure de lingot, et on fait pénétrer un élément de formation du carbure dans une matrice de titane à une température de repénétration pour préparer un joint de grain équiaxe et renforcer la résistance à la traction.
PCT/KR2005/002984 2005-09-09 2005-09-09 Composition d'un alliage de titane renforce par precipitation du carbure et son procede de traitement thermique WO2007029897A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2005/002984 WO2007029897A1 (fr) 2005-09-09 2005-09-09 Composition d'un alliage de titane renforce par precipitation du carbure et son procede de traitement thermique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2005/002984 WO2007029897A1 (fr) 2005-09-09 2005-09-09 Composition d'un alliage de titane renforce par precipitation du carbure et son procede de traitement thermique

Publications (1)

Publication Number Publication Date
WO2007029897A1 true WO2007029897A1 (fr) 2007-03-15

Family

ID=37835996

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2005/002984 WO2007029897A1 (fr) 2005-09-09 2005-09-09 Composition d'un alliage de titane renforce par precipitation du carbure et son procede de traitement thermique

Country Status (1)

Country Link
WO (1) WO2007029897A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104745869A (zh) * 2015-03-27 2015-07-01 常熟市双羽铜业有限公司 一种耐蚀钛合金
CN113843382A (zh) * 2021-07-14 2021-12-28 攀枝花市仁通钒业有限公司 一种碳化钒钛合金的生产工艺

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4770726A (en) * 1982-10-15 1988-09-13 Imi Titanium Limited Titanium alloy
US5792289A (en) * 1993-10-06 1998-08-11 The University Of Birmingham Titanium alloy products and methods for their production
US6053993A (en) * 1996-02-27 2000-04-25 Oregon Metallurgical Corporation Titanium-aluminum-vanadium alloys and products made using such alloys
EP1002882A1 (fr) * 1998-11-11 2000-05-24 Rolls-Royce Plc Une alliage de titane de phase beta

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4770726A (en) * 1982-10-15 1988-09-13 Imi Titanium Limited Titanium alloy
US5792289A (en) * 1993-10-06 1998-08-11 The University Of Birmingham Titanium alloy products and methods for their production
US6053993A (en) * 1996-02-27 2000-04-25 Oregon Metallurgical Corporation Titanium-aluminum-vanadium alloys and products made using such alloys
EP1002882A1 (fr) * 1998-11-11 2000-05-24 Rolls-Royce Plc Une alliage de titane de phase beta

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104745869A (zh) * 2015-03-27 2015-07-01 常熟市双羽铜业有限公司 一种耐蚀钛合金
CN113843382A (zh) * 2021-07-14 2021-12-28 攀枝花市仁通钒业有限公司 一种碳化钒钛合金的生产工艺
CN113843382B (zh) * 2021-07-14 2024-04-26 攀枝花市仁通钒业有限公司 一种碳化钒钛合金的生产工艺

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