WO2009153369A1 - Affineur de grain à base d'aluminium - Google Patents

Affineur de grain à base d'aluminium Download PDF

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Publication number
WO2009153369A1
WO2009153369A1 PCT/ES2009/000326 ES2009000326W WO2009153369A1 WO 2009153369 A1 WO2009153369 A1 WO 2009153369A1 ES 2009000326 W ES2009000326 W ES 2009000326W WO 2009153369 A1 WO2009153369 A1 WO 2009153369A1
Authority
WO
WIPO (PCT)
Prior art keywords
titanium
aluminum
zinc
content
tuner
Prior art date
Application number
PCT/ES2009/000326
Other languages
English (en)
Spanish (es)
Inventor
Abinash Banerji
Original Assignee
Asturiana De Aleaciones, S.A.
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 Asturiana De Aleaciones, S.A. filed Critical Asturiana De Aleaciones, S.A.
Priority to CN2009801221282A priority Critical patent/CN102066593B/zh
Priority to EP09765942.9A priority patent/EP2295608B1/fr
Priority to BRPI0915361A priority patent/BRPI0915361A2/pt
Priority to US12/997,243 priority patent/US20110165014A1/en
Publication of WO2009153369A1 publication Critical patent/WO2009153369A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/026—Alloys based on aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/10—Alloys based on aluminium with zinc as the next major constituent

Definitions

  • the invention refers to an aluminum based grain tuner or tuner.
  • the object of the invention focuses on a novel aluminum alloy (also called “mother alloy”) containing aluminum, zinc, titanium and carbon, which is obtained or synthesized by the fusion of aluminum and the subsequent addition of titanium, zinc and carbon.
  • a novel aluminum alloy also called "mother alloy”
  • the molten alloy is cast by casting as desired.
  • the microstructure of the mother alloy consists of an alpha aluminum matrix, intermetallic phase of TiAl 3 and fine particles (particles in the range between nm and a few ⁇ m) of a ternary titanium-zinc-carbide compound.
  • the practical application of this quaternary mother alloy is for the grain refining of aluminum and its alloys.
  • the standard commercial grain tuner is the Al-Ti-B mother alloy, which contains TiB 2 particles and is commercially available with different Ti and B contents.
  • the most commonly used mother alloy is Al-5% Ti-l% B in the form of a rod (compositions in% in weight, if not indicated otherwise).
  • Al-Ti-B mother alloys are known to be effective for general applications, although they cause the following defects in certain specific applications, due to the presence of coarse particles and TiB 2 agglomerations:
  • the object of the present invention is focused on developing another tuner that exceeds the performance of the Al-Ti-C grain tuners, commercially available so far, and that effectively resolves the well-known problems associated with Conventional Al-Ti-B grain tuner, it should be noted that it is not known by the applicant that there has been no alloy or any aluminum alloy base alloy containing zinc, titanium and carbon and showing grain refining capacity , such as that claimed by the present invention.
  • the grain tuner object of the invention is produced as follows:
  • titanium is added as titanium sponge or of titanium scrap (for example, chips).
  • Another source of titanium may be a salt containing titanium, for example, K 2 TiF 6 .
  • a binary mixture of Al-Ti can be produced, by adding the required amount of salt to the molten aluminum, and after the binary mixture of Al-Ti is ready and the slag becomes removal of the molten surface, the subsequent process can begin.
  • an Al-Ti mother alloy can also be melted directly.
  • pure zinc or an alloy containing zinc (for example, a Zn-Al alloy) is added to the melt followed by carbon powder, which may be graphite or amorphous carbon.
  • carbon powder which may be graphite or amorphous carbon.
  • the usual process is that the addition of titanium is followed by zinc and carbon, although the sequence of addition of the elements does not constitute a limitation for the invention.
  • the addition can be of the three elements together or one after the other.
  • the necessary maintenance time of the alloy in the furnace (“holding"), after all the elements have been added, is usually between 30 and 60 minutes for the complete reaction of the three elements to produce the ternary carbide particles of titanium, zinc and carbon.
  • the maintenance time will depend on the composition of the laundry, its volume, the melting temperature and the type of oven. In the case of induction melting, a stirring effect can reduce the maintenance time.
  • the mother alloy obtained is cast by casting by means of the usual procedure in ingots ("waffles"), blocks or bars that can be subsequently processed in the form of a rod or wire. According to the state of the art, it can be used directly a continuous casting equipment together with a winding device to directly process the mother alloy in rod or wire rolls. Alternatively, other casting and shaping procedures can be used to obtain the grain tuner in the desired shape and size.
  • the mother alloy is suitable for use in the refining of aluminum grain and its alloys. It can be used in the form of ingots, bars or rod according to grain refining techniques.
  • microstructure of the mother alloy obtained by the described procedure contains the following three phases:
  • the titanium content is at least 1% and at most 20%, the carbon content is at least 0.01% (100 ppm) and at most 3% and the content of Zinc is at least 1%.
  • the typical microstructure of an Al-6% Zn-3, 5% Ti-0, 4% C alloy obtained in form is presented in Figs. 1 and 2 of rod.
  • TPl grain refining tests were carried out using the new tuner and the results were compared with those obtained with commercial grain tuners available from Al-Ti-B and Al-Ti-C.
  • the typical macrographs of the TPl tests performed are included in Figs. 3, 4, 5 and 6. It can be seen that in the conventional trial 2 min short, carried out with 99.7% pure commercial aluminum, with the new Al-6% Zn-3, 5% T-0.4% C tuner, a grain size of 110 ⁇ m was obtained, which is slightly thinner than that obtained with Al-5% Ti-l% B (115 ⁇ m) and considerably finer than that obtained with Al-3, 5% Ti-0.2% C (170 ⁇ m).
  • the present specification is accompanied by photographs in which, by way of non-limiting example, the typical microstructure and the results obtained with a grain tuner with an Al-6% composition are illustrated Zn-3, 5% Ti-0, 4% C, such as that which is the object of the invention, according to the principles of the claims.
  • Figure 1 shows the typical micro structure of an Al-6% Zn-3, 5% Ti-0, 4% C grain tuner obtained as a rod.
  • Figure 2 shows the same typical micro structure of an Al-6% Zn-3.5% Ti-0.4% C grain tuner obtained as a rod, at a lower number of increases.
  • Figure 3 shows the typical 99.7% macrograph without the addition of a tuner.
  • Figure 4 shows the typical 99.7% macrography tuned with 2Kg / Tm. of Al-5% Ti-l% B rod.
  • Figure 5 shows the typical Al 99.7% macrography tuned with 2Kg / Tm. of Al-3, 5% Ti-0, 2% C rod.
  • Figure 6 shows the typical 99.7% macrography tuned with 2Kg / Tm. of Al-6% Zn-3, 5% Ti-0, 4% C rod.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

L'invention concerne un affineur de grain à base d'aluminium qui contient du zinc, du titane et du carbone, synthétisé par la fusion d'aluminium puis par l'addition de titane, de zinc et de carbone. La microstructure de l'alliage mère se compose d'une matrice d'aluminium alpha, d'une phase intermétallique de TiAl3 et de particules fines d'un composé ternaire de titane-zinc-carbure. La teneur en titane est de 1 % au minimum et de 20 % au maximum, la teneur en carbone est de 0,01 % au minimum (100 ppm) et de 3 % au maximum et la teneur en zinc est supérieure ou égale à 1 %.
PCT/ES2009/000326 2008-06-11 2009-06-10 Affineur de grain à base d'aluminium WO2009153369A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN2009801221282A CN102066593B (zh) 2008-06-11 2009-06-10 铝基晶粒细化剂
EP09765942.9A EP2295608B1 (fr) 2008-06-11 2009-06-10 Affineur de grain à base d'aluminium
BRPI0915361A BRPI0915361A2 (pt) 2008-06-11 2009-06-10 refinador de grão à base de alumínio
US12/997,243 US20110165014A1 (en) 2008-06-11 2009-10-06 Aluminium-based grain refiner

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200801768A ES2330713B2 (es) 2008-06-11 2008-06-11 Afinador de grano de base aluminio.
ESP200801768 2008-06-11

Publications (1)

Publication Number Publication Date
WO2009153369A1 true WO2009153369A1 (fr) 2009-12-23

Family

ID=41352383

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2009/000326 WO2009153369A1 (fr) 2008-06-11 2009-06-10 Affineur de grain à base d'aluminium

Country Status (6)

Country Link
US (1) US20110165014A1 (fr)
EP (1) EP2295608B1 (fr)
CN (1) CN102066593B (fr)
BR (1) BRPI0915361A2 (fr)
ES (1) ES2330713B2 (fr)
WO (1) WO2009153369A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105132744B (zh) * 2015-09-29 2017-03-08 济南大学 含有带孔洞或凹槽的锆‑钛‑铝‑锌四元化合物粒子的锌‑铝基中间合金及其制备方法
CN106591617A (zh) * 2016-12-22 2017-04-26 哈尔滨东盛金属材料有限公司 用于铝合金的锰添加剂及其制备方法
JP7062464B2 (ja) * 2018-02-21 2022-05-06 Ｄｏｗａメタルテック株式会社 アルミニウム－セラミックス接合基板およびその製造方法
CN110129640B (zh) * 2019-06-28 2020-05-05 江西理工大学 一种增材制造用7000系铝合金线材及其制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2171723A (en) * 1985-03-01 1986-09-03 London Scandinavian Metall Producing an alloy containing titanium carbide
EP0214220A1 (fr) 1985-03-01 1987-03-18 London Scandinavian Metall Procede de production d'un alliage contenant des particules de carbure de titane.
JPH02121452A (ja) 1988-10-31 1990-05-09 Toshiba Corp 電子交換機システム
NO167589B (no) 1985-03-01 1991-08-12 London Scandinavian Metall Fremgangsmaate for fremstilling av en aluminiumforlegeringinneholdende titankarbidpartikler.
WO1999027146A1 (fr) * 1997-11-20 1999-06-03 Tübitak-Marmara Research Center Procede in situ servant a produire un alliage d'aluminium contenant des particules de carbure de titane

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9701819D0 (en) * 1997-01-29 1997-03-19 Alpha Fry Ltd Lead-free tin alloy
US20050238529A1 (en) * 2004-04-22 2005-10-27 Lin Jen C Heat treatable Al-Zn-Mg alloy for aerospace and automotive castings
ATE417132T1 (de) * 2005-06-07 2008-12-15 Univ Clausthal Tech Aluminium-gleitlagerlegierung
CN101294247B (zh) * 2007-04-26 2010-11-24 中南大学 铝合金细化剂及用该细化剂制备的铝合金

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2171723A (en) * 1985-03-01 1986-09-03 London Scandinavian Metall Producing an alloy containing titanium carbide
EP0214220A1 (fr) 1985-03-01 1987-03-18 London Scandinavian Metall Procede de production d'un alliage contenant des particules de carbure de titane.
US4748001A (en) 1985-03-01 1988-05-31 London & Scandinavian Metallurgical Co Limited Producing titanium carbide particles in metal matrix and method of using resulting product to grain refine
US4842821A (en) 1985-03-01 1989-06-27 London & Scandinavian Metallurgical Co. Limited Producing titanium carbide
AU595187B2 (en) 1985-03-01 1990-03-29 London & Scandinavian Metallurgical Co Limited Method for producing an alloy containing titanium carbide particles
NO167589B (no) 1985-03-01 1991-08-12 London Scandinavian Metall Fremgangsmaate for fremstilling av en aluminiumforlegeringinneholdende titankarbidpartikler.
CA1289748C (fr) 1985-03-01 1991-10-01 Abinash Banerji Production du carbure de titane
JPH02121452A (ja) 1988-10-31 1990-05-09 Toshiba Corp 電子交換機システム
WO1999027146A1 (fr) * 1997-11-20 1999-06-03 Tübitak-Marmara Research Center Procede in situ servant a produire un alliage d'aluminium contenant des particules de carbure de titane

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
BANERJI, A. ET AL.: "Metallographic investigation of TiC nucleants in the newly developed Al-Ti-C grain refiner", JOURNAL OF MATERIALS SCIENCE, vol. 29, 27 September 1993 (1993-09-27), pages 1958 - 1965, XP008140583 *
BIROL, Y.: "Grain refining efficiency of Al-Ti-C alloys", JOURNAL OF ALLOYS AND COMPOUNDS, vol. 422, 18 January 2006 (2006-01-18), pages 128 - 131, XP025140492 *
DR. ABINASH BANERJI: "Doctoral Thesis", 1987, TECHNICAL UNIVERSITY
See also references of EP2295608A4
ZHONGHUA ZHANG ET AL.: "TEM observations of a rapidly solified Al- Ti-C alloy", JOURNAL OF ALLOYS AND COMPOUNDS, vol. 349, 6 June 2002 (2002-06-06), pages 121 - 128, XP008140576 *

Also Published As

Publication number Publication date
CN102066593B (zh) 2013-08-07
EP2295608A4 (fr) 2012-08-08
ES2330713B2 (es) 2010-04-19
EP2295608A1 (fr) 2011-03-16
CN102066593A (zh) 2011-05-18
US20110165014A1 (en) 2011-07-07
EP2295608B1 (fr) 2015-01-07
BRPI0915361A2 (pt) 2015-11-03
ES2330713A1 (es) 2009-12-14

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