FR2396805A2 - Aciers a caracteristiques mecaniques ameliorees par additions controlees de b, al, n et ti - Google Patents

Aciers a caracteristiques mecaniques ameliorees par additions controlees de b, al, n et ti

Info

Publication number
FR2396805A2
FR2396805A2 FR7721830A FR7721830A FR2396805A2 FR 2396805 A2 FR2396805 A2 FR 2396805A2 FR 7721830 A FR7721830 A FR 7721830A FR 7721830 A FR7721830 A FR 7721830A FR 2396805 A2 FR2396805 A2 FR 2396805A2
Authority
FR
France
Prior art keywords
ppm
boron
obtd
zirconium
aluminium
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.)
Granted
Application number
FR7721830A
Other languages
English (en)
Other versions
FR2396805B2 (fr
Inventor
Daniel Thivellier
Daniel Rousseau
Roland Tricot
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.)
Ugine Aciers SA
Original Assignee
Ugine Aciers SA
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 Ugine Aciers SA filed Critical Ugine Aciers SA
Priority to FR7721830A priority Critical patent/FR2396805A2/fr
Publication of FR2396805A2 publication Critical patent/FR2396805A2/fr
Application granted granted Critical
Publication of FR2396805B2 publication Critical patent/FR2396805B2/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

L'invention concerne des aciers à très hautes caractéristiques mécaniques possédant une bonne trempabilité et ayant à l'état trempé ou à l'état cémenté et trempé, une grande ténacité. Les aciers suivant l'invention contiennent: bore total Bt : 20 à 60 ppm; N : 40 à 190 ppm; Ti + Zr/2 : à 300 ppm. De plus, la teneur en azote efficace N1 calculée par la De plus, la teneur en azote efficace N1 calculée par la relation N1 = N - Ti/2 - Zr/10 doit satisfaire à la relation lON1 - 17Bt - So = - 300 +- 200 avec So = Al + V/1,9 + Nb/3,4 + Ta/6,7 Les aciers suivant l'invention sont utilisés à l'état traité ou à l'état cémenté et traité sous forme d'axes, d'engrenages, et pièces mécaniques de toutes natures.
FR7721830A 1977-07-06 1977-07-06 Aciers a caracteristiques mecaniques ameliorees par additions controlees de b, al, n et ti Granted FR2396805A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7721830A FR2396805A2 (fr) 1977-07-06 1977-07-06 Aciers a caracteristiques mecaniques ameliorees par additions controlees de b, al, n et ti

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7721830A FR2396805A2 (fr) 1977-07-06 1977-07-06 Aciers a caracteristiques mecaniques ameliorees par additions controlees de b, al, n et ti

Publications (2)

Publication Number Publication Date
FR2396805A2 true FR2396805A2 (fr) 1979-02-02
FR2396805B2 FR2396805B2 (fr) 1981-05-08

Family

ID=9193401

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7721830A Granted FR2396805A2 (fr) 1977-07-06 1977-07-06 Aciers a caracteristiques mecaniques ameliorees par additions controlees de b, al, n et ti

Country Status (1)

Country Link
FR (1) FR2396805A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108085591A (zh) * 2017-11-24 2018-05-29 南阳汉冶特钢有限公司 一种具有低焊接裂纹敏感性能的钢板htnm400及其生产方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1009427A (fr) *
FR1315054A (fr) * 1961-10-24 1963-01-18 Ishikawajima Harima Heavy Ind Aciers pour cémentation à haute température
FR2000542A1 (fr) * 1968-01-22 1969-09-12 Nippon Kokan Kk
FR2052823A5 (fr) * 1969-06-21 1971-04-09 Nippon Kokan Kk
DE977847C (de) * 1965-02-07 1971-09-02 Huettenwerk Oberhausen Ag Verwendung von Staehlen als Werkstoff fuer Panzerbleche oder -platten
FR2179008A1 (fr) * 1972-04-03 1973-11-16 Nippon Steel Corp
SU432225A1 (ru) * 1972-11-16 1974-06-15 Б. В. Иванов Сталь

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1009427A (fr) *
FR1315054A (fr) * 1961-10-24 1963-01-18 Ishikawajima Harima Heavy Ind Aciers pour cémentation à haute température
DE977847C (de) * 1965-02-07 1971-09-02 Huettenwerk Oberhausen Ag Verwendung von Staehlen als Werkstoff fuer Panzerbleche oder -platten
FR2000542A1 (fr) * 1968-01-22 1969-09-12 Nippon Kokan Kk
FR2052823A5 (fr) * 1969-06-21 1971-04-09 Nippon Kokan Kk
FR2179008A1 (fr) * 1972-04-03 1973-11-16 Nippon Steel Corp
SU432225A1 (ru) * 1972-11-16 1974-06-15 Б. В. Иванов Сталь

Also Published As

Publication number Publication date
FR2396805B2 (fr) 1981-05-08

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