WO2018088351A1 - Matériau extrudé à base d'alliage d'aluminium - Google Patents

Matériau extrudé à base d'alliage d'aluminium Download PDF

Info

Publication number
WO2018088351A1
WO2018088351A1 PCT/JP2017/039899 JP2017039899W WO2018088351A1 WO 2018088351 A1 WO2018088351 A1 WO 2018088351A1 JP 2017039899 W JP2017039899 W JP 2017039899W WO 2018088351 A1 WO2018088351 A1 WO 2018088351A1
Authority
WO
WIPO (PCT)
Prior art keywords
mass
extruded material
extrusion
less
content
Prior art date
Application number
PCT/JP2017/039899
Other languages
English (en)
Japanese (ja)
Inventor
有賀　康博
琢哉 高知
孝太郎 豊武
Original Assignee
株式会社神戸製鋼所
神鋼メタルプロダクツ株式会社
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 株式会社神戸製鋼所, 神鋼メタルプロダクツ株式会社 filed Critical 株式会社神戸製鋼所
Publication of WO2018088351A1 publication Critical patent/WO2018088351A1/fr

Links

Images

Classifications

    • 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
    • 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
    • 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
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/053—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with zinc as the next major constituent

Definitions

  • the present disclosure relates to an extruded material made of an aluminum alloy. More specifically, the present invention relates to an extruded material made of a 7000 series aluminum alloy.
  • Al—Zn—Mg—Cu-based aluminum alloys having excellent strength, corrosion resistance and light weight hereinafter, Extruded material made of 7000 series aluminum alloy is sometimes used.
  • Extruded materials made of a 7000 series aluminum alloy have high strength, and various types of materials having a tensile strength of 700 MPa or higher by T6 refining after extrusion have been proposed.
  • Patent Document 1 discloses that a wire rod extruded material of a 7000 series aluminum alloy having a Zn content exceeding 8 mass% can be given a strength exceeding a tensile strength of 720 MPa by aging treatment.
  • a coarse recrystallized grain layer is generated. Therefore, when the extruded material is forged or rolled into a large-diameter bolt, the cause of cracking become. For this reason, it is essential to remove the coarse recrystallized grain layer on the surface of the extruded material (surface layer portion) before plastic working.
  • Patent Document 3 discloses manufacturing a 7000 series aluminum alloy extruded material by hot isostatic pressing.
  • the average crystal grain size of the recrystallized grains in the surface layer portion of the extruded material is 100 ⁇ m or less as a cross-sectional structure parallel to the extrusion direction passing through the axial center portion of the extruded material in the extruded state.
  • the average intercept length in the radial direction of the crystal grains in the central portion of the extruded material axis is 35 ⁇ m or less
  • the average area ratio of the ⁇ 111> orientation crystal grains in the extrusion direction is 0.5 or more and 1.0 or less.
  • the ratio ⁇ 001> / ⁇ 111> between the average area ratio of ⁇ 001> oriented crystal grains and the average area ratio of ⁇ 111> oriented crystal grains is 0.25 or less.
  • Patent Document 3 as a result of the structure of the extruded material that has not been subjected to any heat treatment or processing other than cooling from the extrusion temperature after completion of the hot extrusion, and remains extruded (extruded), the surface layer In addition to the portion, recrystallization (recrystallization) inside the extruded material is also suppressed.
  • a fine extruded structure (fibrous structure) is obtained and a high strength of 700 MPa or more is obtained as a tensile strength after artificial aging treatment.
  • the tensile strength after the artificial aging treatment obtained is 700 MPa or more, but it is only less than about 800 MPa.
  • Aluminum alloy extrusions as materials for various mechanical parts such as bolts and nuts, as well as springs (springs) are used after the artificial aging treatment in order to replace the steel materials that have been used mainly in the past. Further, it is required that the tensile strength is 800 MPa or more and the total elongation is 5% or more.
  • the conventional 7000 series aluminum alloy extruded material can achieve a certain level of strength, but it may be difficult to stably obtain sufficient strength as a material for mechanical parts such as bolts and springs that require high strength. there were.
  • Embodiments according to the present invention have been made to solve such problems, and the purpose thereof is a mechanical part having a tensile strength after artificial aging treatment of 800 MPa or more and a total elongation of 5% or more. 7000 series aluminum alloy extruded material that can be manufactured.
  • Aspect 1 of the present invention Zn: 8.0 to 14.0% by mass, Mg: 2.0 to 4.0% by mass, Cu: 0.5 to 2.0% by mass, Mn: 0.2 to 1.5% by mass, Zr: 0.05 to 0.3% by mass,
  • the balance is Al and inevitable impurities
  • the average value of the equivalent circle diameter of the intermetallic compound measured using SEM is 3.0 ⁇ m or less, and the intermetallic compound having an equivalent circle diameter of 3.0 ⁇ m or more is 4.0% or less in area ratio. It is an extruded material.
  • Aspect 2 of the present invention Cr: 0.05 to 0.3% by mass, and Sc: 0.02 to 0.5% by mass
  • Aspect 3 of the present invention Ag: 0.05 to 0.6% by mass, and Sn: 0.01 to 0.2% by mass
  • the extruded material according to aspect 1 or 2 further comprising one or two selected from the group consisting of:
  • a 7000 series aluminum alloy extruded material capable of producing a machine part having a tensile strength after artificial aging treatment of 800 MPa or more and a total elongation of 5% or more.
  • FIG. 1 is a diagram showing an example of an SEM reflected electron image at a magnification of 800 times.
  • the present inventors have studied from various angles in order to realize a 7000 series aluminum alloy extruded material capable of producing mechanical parts having sufficiently excellent tensile strength and total elongation as machine parts such as bolts and springs.
  • the inventors of the present invention have noticed that an intermetallic compound having a size of about several ⁇ m dispersed in a material is likely to be a starting point of breakage when the material is deformed if the size is large.
  • it has a normal chemical composition as a 7000 series aluminum alloy, reduces the average value of the size of the metal compound dispersed in the extruded material, and between coarse metals having a predetermined size or more.
  • the proportion of the compound by reducing the proportion of the compound, a machine part having high tensile strength and total elongation can be produced after artificial aging treatment. That is, as the texture of the extruded material, the average value of the equivalent circle diameter of the intermetallic compound measured using the SEM is controlled to 3.0 ⁇ m or less, and the ratio of the intermetallic compound having the equivalent circle diameter of 3.0 ⁇ m or more is the area. By controlling the ratio to 4.0% or less, it is possible to reduce the coarse metal compound that becomes the starting point of fracture at the time of deformation of the material.
  • the “intermetallic compound” in this specification means Al—Mn, Zn—Mg, Al—Fe, Al—Zr, and other precipitates and crystallized substances.
  • extruded material as used herein is a concept that includes not only an extruded material obtained by hot extrusion, but also a wire rod extruded material that is further subjected to drawing and / or annealing at about 400 ° C.
  • after artificial aging treatment means “after solution treatment, quenching treatment and artificial aging treatment”.
  • the aluminum alloy extruded material according to the embodiment of the present invention has an ordinary chemical component composition as a 7000 series aluminum alloy described later, and an average value of the size of the metal compound dispersed in the material.
  • the aluminum alloy material according to the embodiment of the present invention as a raw material, it is possible to manufacture a machine part having excellent tensile strength and total elongation after artificial aging treatment.
  • tissue of the aluminum alloy extrusion material which concerns on embodiment of this invention is demonstrated.
  • the area ratio of an intermetallic compound having an equivalent circle diameter of 3.0 ⁇ m or more is 4.0% or less, preferably 3.5% or less.
  • a machine part having excellent tensile strength and total elongation can be obtained when machining and heat treatment are performed under appropriate conditions using the extruded material according to the embodiment of the present invention.
  • the measurement area per field of view of the SEM can be set to 150 ⁇ m ⁇ 120 ⁇ m, and 10 locations (10 fields of view) are taken for each test piece and image analysis is performed.
  • the SEM magnification is preferably 800 times.
  • FIG. 1 shows an example of an 800 times magnified SEM reflected electron image.
  • the portions shown in white and gray are the intermetallic compounds (precipitates and crystallized products) such as Al—Mn and Zn—Mg based on the embodiment of the present invention. .
  • the equivalent circle diameter of the compound defined in the embodiment of the present invention is a diameter of a circle having the same area as the compound having an irregular shape, and a method for measuring the size of the compound accurately and with good reproducibility. As has been widely used. As a formula for calculating the equivalent circle diameter (L), Can be used.
  • the extruded material according to the embodiment of the present invention is made of a 7000 series aluminum alloy, and the component composition only needs to have a normal chemical composition as a 7000 series aluminum alloy.
  • Zn 8.0 to 14.0% by mass Zn, together with Mg, is an element that improves the strength by forming an aging precipitate that is an intermetallic compound of Mg and Zn during an artificial aging treatment described later. If the Zn content is less than 8.0% by mass, the strength as a machine part is insufficient. Therefore, Zn content is 8.0 mass% or more, Preferably it is 9.0 mass% or more. On the other hand, if the Zn content exceeds 14.0% by mass, ingot cracking is likely to occur during casting of the billet for the extruded material, and ingot making becomes difficult. Therefore, Zn content is 14.0 mass% or less, Preferably it is 13.0 mass% or less. In addition, when Zn content is high, SCC sensitivity becomes sharp, but in order to suppress it, it is desirable to add Cu or Ag described later.
  • Mg 2.0 to 4.0% by mass Mg, together with Zn, is an element that improves the strength and elongation as a mechanical component by forming an aging precipitate, which is an intermetallic compound of Mg and Zn, defined in the embodiment of the present invention during the artificial aging treatment described later. is there. If the Mg content is less than 2.0% by mass, the strength is insufficient. Therefore, the Mg content is 2.0% by mass or more, preferably 2.5% by mass or more.
  • Mg content exceeds 4.0% by mass, the extrudability at a low temperature in the non-recrystallization temperature range (temperature range below the recrystallization temperature) of the cast billet for the extruded material is lowered, and the SCC sensitivity is reduced. Become stronger. Therefore, Mg content is 4.0 mass% or less, Preferably it is 3.5 mass% or less.
  • Cu 0.5 to 2.0 mass% Cu has the effect of improving the SCC resistance as a machine part.
  • the Cu content is 0.5% by mass or more, and preferably 0.7% by mass or more.
  • the Cu content is 2.0 mass% or less, Preferably it is 1.8 mass% or less.
  • Mn 0.2 to 1.5% by mass
  • Mn contributes to improving the strength of mechanical parts by forming dispersed particles.
  • the Mn content is 0.2% by mass or more, preferably 0.3% by mass or more.
  • the Mn content is 1.5% by mass or less, preferably 1.2% by mass or less.
  • Zr 0.05 to 0.3% by mass
  • Zr forms fine precipitates, suppresses recrystallization, and contributes to improving the strength of machine parts.
  • the content of Zr is less than 0.05% by mass, the content is insufficient and the strength is lowered. Therefore, the Zr content is 0.05% by mass or more, preferably 0.1% by mass or more.
  • the Zr content is 0.3% by mass or less, preferably 0.25% by mass or less.
  • the balance is Al and inevitable impurities.
  • unavoidable impurities it is assumed that trace elements such as Fe, Si, Ti and B brought in depending on the conditions of raw materials, materials, manufacturing facilities, and the like are mixed.
  • the inclusion of each of these inevitable impurities is allowed within the range specified by JIS standards for 7000 series alloys.
  • Fe and Si may each be contained within a range of 0.5% by mass or less (including 0% by mass).
  • extruded material according to the embodiment of the present invention is not limited to the above-described composition. As long as the characteristics of the extruded material according to the embodiment of the present invention can be maintained, other elements may be further included as necessary. Other elements that can be selectively contained as described above are exemplified below.
  • the Cr content is preferably 0.05% by mass or more, and more preferably 0.1% by mass or more.
  • the Sc content is preferably 0.02% by mass or more, and more preferably 0.05% by mass or more.
  • the Cr content exceeds 0.3% by mass, or when the Sc content exceeds 0.5% by mass, a coarse crystallized product is formed, which may reduce the elongation. . Therefore, the Cr content is preferably 0.3% by mass or less, and more preferably 0.25% by mass or less. For the same reason, the Sc content is preferably 0.5% by mass or less, and more preferably 0.4% by mass or less.
  • One or two of Ag: 0.05 to 0.6 mass% and Sn: 0.01 to 0.2 mass% Ag and Sn are non-precipitated near the grain boundary in the artificial aging treatment. Suppresses the formation of bands and contributes to improving the strength of machine parts.
  • the Ag content is preferably 0.05% by mass or more, and more preferably 0.1% by mass or more.
  • the Sn content is preferably 0.01% by mass or more, and more preferably 0.03% by mass or more.
  • the Ag content exceeds 0.6% by mass, and when the Sn content exceeds 0.2% by mass, a coarse primary crystal compound is formed during casting of the cast billet for the extruded material. , Seizure at the time of extrusion, or reduction in elongation of machine parts as a product may be caused. Therefore, the Ag content is preferably 0.6% by mass or less, and more preferably 0.5% by mass or less. For the same reason, the Sn content is preferably 0.2% by mass or less, and more preferably 0.15% by mass or less.
  • the aluminum alloy extruded material according to the embodiment of the present invention has a normal chemical composition as a 7000 series aluminum alloy, and controls the dispersion state of intermetallic compounds in the structure as described above. When subjected to heat treatment by imitating machine parts under appropriate conditions, excellent tensile strength and total elongation can be exhibited.
  • an alloy extruded material according to an embodiment of the present invention has excellent tensile strength and total elongation after machining and heat treatment.
  • an alloy extruded material according to an embodiment of the present invention is a wire rod material having a circular cross-sectional shape and drawn by 70 to 90% area reduction, and the wire rod material has a temperature of 450 to 550 ° C.
  • a solution treatment for holding for 0.5 to 10 hours at a temperature is performed, followed by water cooling, and then an artificial aging treatment for holding for 2 hours or more at 100 to 200 ° C. to obtain a mechanical part.
  • a machine part manufactured by performing machining and heat treatment under such conditions using an aluminum alloy extruded material according to an embodiment of the present invention has a tensile strength of 800 MPa or more and a total elongation of 5% or more. Can do.
  • the molten aluminum alloy melt-adjusted within the range of the 7000-based component composition may be cast by appropriately selecting a normal melting casting method such as a semi-continuous casting method (DC casting method).
  • a normal melting casting method such as a semi-continuous casting method (DC casting method).
  • the average cooling rate from the liquidus temperature to the solidus temperature during casting is 30 ° C./min or more, preferably 40 ° C./min or more.
  • Such a cooling rate can be achieved, for example, by means such as adjusting the billet size, cross-sectional area and shape, or selecting a mold material.
  • the soaking temperature is controlled to 400 to 450 ° C.
  • intermetallic compounds such as Zn—Mg can be finely dispersed.
  • the soaking temperature is 400 ° C. or higher, preferably 410 ° C. or higher.
  • the soaking temperature is 450 ° C. or lower, preferably 440 ° C. or lower.
  • the holding time at the soaking temperature is not particularly limited, but is preferably about 1 to 8 hours.
  • Average cooling rate 80 ° C / hour or more
  • the average cooling rate from the soaking temperature is preferably 100 ° C./hour or more.
  • the average cooling rate from the soaking temperature to 200 ° C. is 80 ° C./hour or more.
  • the average cooling rate between the temperatures is less than 80 ° C./hour, the amount of a compound such as a Zn—Mg system generated during cooling increases.
  • Hot extrusion (extrusion start temperature: 300 to 380 ° C.)
  • an extruded material shape close to this final shape corresponding to the final machine part shape is obtained.
  • the extrusion start temperature exceeds 380 ° C.
  • the temperature at the time of extrusion rises and recrystallization easily occurs at a high temperature, and not only a coarse recrystallized structure is formed in the surface layer portion and the inside of the extruded material, but also coarse particles Precipitates, causing a decrease in strength and elongation.
  • the extrusion start temperature is 380 ° C. or lower, preferably 370 ° C. or lower.
  • the lower the extrusion start temperature the better.
  • extrusion start temperature shall be 300 degreeC or more.
  • it is 320 degreeC or more.
  • direct extrusion or indirect extrusion may be used, but there are cases where many seizures occur under the preferable extrusion conditions in the non-recrystallized region. Therefore, when extrusion is difficult, it is preferable to carry out by hydrostatic extrusion.
  • Direct extrusion and indirect extrusion are more efficient than hydrostatic extrusion, but the recrystallized grain layer on the surface of the extruded material (surface portion) is relatively fine, fibrous crystals extending in the extrusion direction.
  • the recrystallized grain layer on the surface of the extruded material is relatively fine, fibrous crystals extending in the extrusion direction.
  • extrusion below the recrystallization temperature range Processing is quite difficult.
  • the extruded material by hot isostatic pressing includes the recrystallized grain layer, or even if there is a recrystallized grain layer, the structure from the surface layer to the inside can be made uniform. As a result, the drawability, drawability, workability, and formability of the wire rod or wire rod product are significantly improved.
  • the recrystallized grain layer is suppressed as in the embodiment of the present invention, the basic characteristics such as sag resistance required for wire rod products such as aluminum alloy bolts by being a fine extruded structure. Can also be guaranteed.
  • the extruded material may be further subjected to drawing and / or annealing. Even if such a treatment is performed, the above-described definition of the structure of the extruded material according to the embodiment of the present invention is maintained.
  • the annealing treatment described above is optional, and the annealing treatment may be performed during drawing or rolling.
  • the drawing process may be performed with a reduction in area of, for example, about 90% or less.
  • a machine part is simulated, and the wire rod extruded material is subjected to a drawing process with a reduction in area of 84% to obtain a wire rod material of 10 mm ⁇ having a circular cross section.
  • the material was subjected to a solution treatment at 480 ° C. for 1 hour, followed by water cooling and an artificial aging treatment in which the material was kept at 120 ° C. for 72 hours.
  • the total elongation (%) was calculated from the spacing between the marking lines before and after the tensile test during the tensile test (10 mm before the tensile test). In addition, these measured values were made into the average value of the said 5 test pieces in each example. The measurement results are shown in Table 1.
  • Invention Examples 1 to 7 are mechanical parts manufactured using an extruded material that satisfies the requirements (composition, manufacturing conditions, and structure of the extruded material) defined in the embodiment of the present invention. As a result, all of the mechanical parts obtained according to Invention Examples 1 to 6 exhibited excellent mechanical properties of tensile strength: 800 MPa or more and total elongation: 5% or more.
  • Comparative Example 1 the Zn content was too small, and the tensile strength of the wire rod after the artificial aging treatment was insufficient.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Extrusion Of Metal (AREA)
  • Powder Metallurgy (AREA)

Abstract

Cette invention concerne un matériau extrudé caractérisé en ce qu'il contient 8,0 à 14,0 % en masse de Zn, 2,0 à 4,0 % en masse de Mg, 0,5 à 2,0 % en masse de Cu, 0,2 à 1,5 % en masse de Mn, et 0,05 à 0,3 % en masse de Zr, le reste étant de l'Al et les inévitables impuretés, et en ce que la valeur moyenne du diamètre équivalent au cercle d'un composé intermétallique à l'intérieur de celui-ci mesuré à par microscope électronique à balayage est inférieure ou égale à 3,0 µm, et le rapport de surface d'un composé intermétallique ayant un diamètre équivalent au cercle supérieur ou égal à 3,0 µm est inférieur ou égal à 4,0 % .
PCT/JP2017/039899 2016-11-14 2017-11-06 Matériau extrudé à base d'alliage d'aluminium WO2018088351A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016221824A JP2018080355A (ja) 2016-11-14 2016-11-14 アルミニウム合金押出材
JP2016-221824 2016-11-14

Publications (1)

Publication Number Publication Date
WO2018088351A1 true WO2018088351A1 (fr) 2018-05-17

Family

ID=62110693

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/039899 WO2018088351A1 (fr) 2016-11-14 2017-11-06 Matériau extrudé à base d'alliage d'aluminium

Country Status (2)

Country Link
JP (1) JP2018080355A (fr)
WO (1) WO2018088351A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109468558A (zh) * 2019-01-08 2019-03-15 合肥工业大学 一种航空航天用7xxx系铝合金的挤压及热处理工艺
CN112111680A (zh) * 2020-09-17 2020-12-22 湖南恒佳新材料科技有限公司 一种铝合金及其板材的制备方法
CN112646997A (zh) * 2020-12-17 2021-04-13 东北轻合金有限责任公司 一种航空航天用含钪超高强铝合金及其制造方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02190434A (ja) * 1989-01-13 1990-07-26 Aluminum Co Of America <Alcoa> 強度、靭性および腐食に関する改良された組合せを有するアルミニウム合金製品
US5560789A (en) * 1994-03-02 1996-10-01 Pechiney Recherche 7000 Alloy having high mechanical strength and a process for obtaining it
CN101215659A (zh) * 2007-12-27 2008-07-09 北京科技大学 一种高强韧含锰铝合金
JP2014125676A (ja) * 2012-12-27 2014-07-07 Kobe Steel Ltd 強度に優れたアルミニウム合金押出材
JP2015221924A (ja) * 2014-05-22 2015-12-10 株式会社神戸製鋼所 アルミニウム合金押出材及びその製造方法
JP2017133097A (ja) * 2016-01-21 2017-08-03 株式会社神戸製鋼所 機械部品およびその製造方法、押出材

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02190434A (ja) * 1989-01-13 1990-07-26 Aluminum Co Of America <Alcoa> 強度、靭性および腐食に関する改良された組合せを有するアルミニウム合金製品
US5560789A (en) * 1994-03-02 1996-10-01 Pechiney Recherche 7000 Alloy having high mechanical strength and a process for obtaining it
CN101215659A (zh) * 2007-12-27 2008-07-09 北京科技大学 一种高强韧含锰铝合金
JP2014125676A (ja) * 2012-12-27 2014-07-07 Kobe Steel Ltd 強度に優れたアルミニウム合金押出材
JP2015221924A (ja) * 2014-05-22 2015-12-10 株式会社神戸製鋼所 アルミニウム合金押出材及びその製造方法
JP2017133097A (ja) * 2016-01-21 2017-08-03 株式会社神戸製鋼所 機械部品およびその製造方法、押出材

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109468558A (zh) * 2019-01-08 2019-03-15 合肥工业大学 一种航空航天用7xxx系铝合金的挤压及热处理工艺
CN109468558B (zh) * 2019-01-08 2020-11-10 合肥工业大学 一种航空航天用7xxx系铝合金的挤压及热处理工艺
CN112111680A (zh) * 2020-09-17 2020-12-22 湖南恒佳新材料科技有限公司 一种铝合金及其板材的制备方法
CN112646997A (zh) * 2020-12-17 2021-04-13 东北轻合金有限责任公司 一种航空航天用含钪超高强铝合金及其制造方法

Also Published As

Publication number Publication date
JP2018080355A (ja) 2018-05-24

Similar Documents

Publication Publication Date Title
US11136658B2 (en) High strength aluminum alloy extruded material with excellent corrosion resistance and favorable quenching properties and manufacturing method therefor
JP6420553B2 (ja) アルミニウム合金、アルミニウム合金線材、アルミニウム合金線材の製造方法、アルミニウム合金部材の製造方法、及びアルミニウム合金部材
JP5830006B2 (ja) 強度に優れたアルミニウム合金押出材
KR100994812B1 (ko) 고강도 고연성 마그네슘 합금 압출재 및 그 제조방법
JP2010189750A (ja) 耐軟化性に優れた高強度アルミニウム合金線棒材およびその製造方法
WO2016204043A1 (fr) Matériau forgé à chaud en alliage d&#39;aluminium à haute résistance
US10125410B2 (en) Heat resistant aluminum base alloy and wrought semifinsihed product fabrication method
JP2009144190A (ja) 高強度高延性アルミニウム合金板およびその製造方法
JP7350805B2 (ja) アルミニウム基合金から変形半製品の製造方法
WO2018088351A1 (fr) Matériau extrudé à base d&#39;alliage d&#39;aluminium
JP2004084058A (ja) 輸送機構造材用アルミニウム合金鍛造材の製造方法およびアルミニウム合金鍛造材
JP2016505713A5 (fr)
JP2017133097A (ja) 機械部品およびその製造方法、押出材
KR101400140B1 (ko) 마그네슘 합금 압출재의 제조방법 및 이에 따라 제조되는 마그네슘 합금 압출재
JP2006274415A (ja) 高強度構造部材用アルミニウム合金鍛造材
JP7157158B2 (ja) マグネシウム合金板材およびその製造方法
JP2004232087A (ja) アルミニウム合金、棒状材、鍛造成形品、機械加工成形品、それを用いた陽極酸化皮膜硬さに優れた耐摩耗性アルミニウム合金、摺動部品、及びそれらの製造方法
JP2009249647A (ja) 高温でのクリープ特性に優れたマグネシウム合金およびその製造方法
JPS63282232A (ja) 塑性加工用高強度マグネシウム合金とその製法
WO2017126413A1 (fr) Composant mécanique ainsi que procédé de fabrication de celui-ci, et matériau extrudé
JP2007092125A (ja) アルミニウム合金、アルミニウム合金棒、鍛造用アルミニウム合金鋳塊の製造方法及び鍛造成形品
JP2001181771A (ja) 高強度耐熱アルミニウム合金材
KR101680046B1 (ko) 소성 가공 전 시효 처리에 의한 고강도 마그네슘 합금 가공재 제조방법 및 이에 의해 제조된 고강도 마그네슘 합금 가공재
JPH07197165A (ja) 高耐磨耗性快削アルミニウム合金とその製造方法
JP2007113037A (ja) 高強度マグネシウム合金押出し材

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17868953

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17868953

Country of ref document: EP

Kind code of ref document: A1