EP0511131B1 - Verfahren zur Herstellung von Referenzproben für spektralanalytische Untersuchung - Google Patents

Verfahren zur Herstellung von Referenzproben für spektralanalytische Untersuchung Download PDF

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Publication number
EP0511131B1
EP0511131B1 EP92420132A EP92420132A EP0511131B1 EP 0511131 B1 EP0511131 B1 EP 0511131B1 EP 92420132 A EP92420132 A EP 92420132A EP 92420132 A EP92420132 A EP 92420132A EP 0511131 B1 EP0511131 B1 EP 0511131B1
Authority
EP
European Patent Office
Prior art keywords
reference samples
alloy
preparation
spectral analysis
ppm
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP92420132A
Other languages
English (en)
French (fr)
Other versions
EP0511131A1 (de
Inventor
Michel Courbière
Hubert Dieudonne
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pechiney Recherche GIE
Original Assignee
Pechiney Recherche GIE
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 Pechiney Recherche GIE filed Critical Pechiney Recherche GIE
Publication of EP0511131A1 publication Critical patent/EP0511131A1/de
Application granted granted Critical
Publication of EP0511131B1 publication Critical patent/EP0511131B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/18—After-treatment

Definitions

  • the invention relates to a method for preparing reference metal samples for spectrographic analysis.
  • the reference metal samples are generally prepared by conventional casting and peeling or by powder metallurgy (mdp) and compacting. They are generally in the form of cylinders, the machined cross section of which is subjected to analysis excitation (spark, X-rays, etc.).
  • the method according to the invention therefore consists in developing a substantially cylindrical preform by spray-deposition, then in consolidating this blank in the form of a bar of appropriate diameter, and finally in cutting the reference samples.
  • spray-deposition is meant a process in which the metal is melted, atomized by a jet of neutral gas at high pressure in the form of fine liquid droplets which are then directed and agglomerated on a substrate so as to form a massive and coherent deposit containing a low closed porosity.
  • This technique is also designated by the "Osprey” process.
  • the deposit is essentially in the form of billets.
  • the spray-deposition takes place under neutral or inert gas.
  • the rate of wrinkling during consolidation must be sufficient to allow the closed porosity induced by the process to be eliminated. Consolidation can be obtained by any known means such as spinning, forging, rolling, hammering, etc.
  • alloys were obtained in the form of billets ⁇ 180x600 mm by spray-deposition under the following conditions: Alloy (1) (2) Pouring temperature: 720 ° C 750 ° C Distance atomizer-deposit kept constant during the test 575mm 575mm Gas flow / metal flow (Nm3 / kg) 3.3 3.37 Nature of gas No. No.
  • the coefficients of variation s / x comparisons of the 3 elements Fe, Cr, Pb, the contents of which were determined at different points in the same reference sample, with comparable Fe, Cr and Pb contents, obtained by the 3 methods indicated are respectively:
  • s represents the standard deviation and x the average value of the content of the element considered.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Claims (5)

  1. Verfahren zur Herstellung von metallischen Referenzproben für spektrometrische Analyse,
    dadurch gekennzeichnet,
    daß man eine Legierung gegebener chemischer Zusammensetzung durch Zersprühungsabscheidung unter neutralem oder inertem Gas abscheidet, welche Legierung weniger als 200 ppm Sauerstoff enthält,
    man den so erhaltenen Rohling in Form einer Stange geeigneten Durchmessers verfestigt und
    man davon Referenzproben abschneidet.
  2. Verfahren nach dem Anspruch 1,
    dadurch gekennzeichnet,
    daß der Sauerstoffgehalt unter 100 ppm ist.
  3. Verfahren nach einem der Ansprüche 1 oder 2,
    dadurch gekennzeichnet,
    daß die Verfestigung durch Strangpressen vorgenommen wird.
  4. Verfahren nach einem der Ansprüche 1 bis 3,
    dadurch gekennzeichnet,
    daß der Durchknetungsgrad ausreichend ist, um die geschlossene Restporosität zu beseitigen.
  5. Verfahren nach einem der Ansprüche 1 bis 4,
    dadurch gekennzeichnet,
    daß die Legierung eine Legierung auf Al-Basis ist.
EP92420132A 1991-04-26 1992-04-21 Verfahren zur Herstellung von Referenzproben für spektralanalytische Untersuchung Expired - Lifetime EP0511131B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9105768A FR2675821B1 (fr) 1991-04-26 1991-04-26 Methode de preparation d'echantillons de reference pour analyse spectrographique.
FR9105768 1991-04-26

Publications (2)

Publication Number Publication Date
EP0511131A1 EP0511131A1 (de) 1992-10-28
EP0511131B1 true EP0511131B1 (de) 1995-06-14

Family

ID=9412723

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92420132A Expired - Lifetime EP0511131B1 (de) 1991-04-26 1992-04-21 Verfahren zur Herstellung von Referenzproben für spektralanalytische Untersuchung

Country Status (7)

Country Link
US (1) US5284533A (de)
EP (1) EP0511131B1 (de)
JP (1) JPH0781938B2 (de)
CA (1) CA2066927C (de)
DE (1) DE69202916T2 (de)
FR (1) FR2675821B1 (de)
NO (1) NO921578L (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100444683B1 (ko) * 2002-06-24 2004-08-21 현대자동차주식회사 알루미늄 합금의 함량 분석을 위한 시료 전처리 방법

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0295008A1 (de) * 1987-06-09 1988-12-14 Alcan International Limited Aluminiumverbundlegierungen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1472939A (en) * 1974-08-21 1977-05-11 Osprey Metals Ltd Method for making shaped articles from sprayed molten metal
GB8306428D0 (en) * 1983-03-09 1983-04-13 Singer A R E Metal-coating metallic substrate
JPH0225558A (ja) * 1988-07-13 1990-01-29 Kanmeta Eng Kk 溶射方法
FR2640644B1 (fr) * 1988-12-19 1991-02-01 Pechiney Recherche Procede d'obtention par " pulverisation-depot " d'alliages d'al de la serie 7000 et de materiaux composites a renforts discontinus ayant pour matrice ces alliages a haute resistance mecanique et bonne ductilite

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0295008A1 (de) * 1987-06-09 1988-12-14 Alcan International Limited Aluminiumverbundlegierungen

Also Published As

Publication number Publication date
DE69202916T2 (de) 1995-11-16
JPH0781938B2 (ja) 1995-09-06
FR2675821B1 (fr) 1993-07-02
JPH05180734A (ja) 1993-07-23
CA2066927A1 (fr) 1992-10-27
EP0511131A1 (de) 1992-10-28
US5284533A (en) 1994-02-08
FR2675821A1 (fr) 1992-10-30
NO921578D0 (no) 1992-04-23
NO921578L (no) 1992-10-27
DE69202916D1 (de) 1995-07-20
CA2066927C (fr) 1994-10-25

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