JPS57145927A - Production of austenitic steel having high fatigue strength - Google Patents

Production of austenitic steel having high fatigue strength

Info

Publication number
JPS57145927A
JPS57145927A JP3089581A JP3089581A JPS57145927A JP S57145927 A JPS57145927 A JP S57145927A JP 3089581 A JP3089581 A JP 3089581A JP 3089581 A JP3089581 A JP 3089581A JP S57145927 A JPS57145927 A JP S57145927A
Authority
JP
Japan
Prior art keywords
alloy steel
fatigue strength
carbide
high fatigue
steel
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.)
Pending
Application number
JP3089581A
Other languages
Japanese (ja)
Inventor
Kazuo Toyama
Kenji Hirakawa
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP3089581A priority Critical patent/JPS57145927A/en
Publication of JPS57145927A publication Critical patent/JPS57145927A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

PURPOSE:To produce titled steel of high fatigue strength and a high endurance ratio to tensile strength by hot-working alloy steel contg. C, Si, Mn, Ni, Cr respectively at prescribed ratios then allowing to cool or/and holding the same at below the temp. at which carbide solutionizes completely thence cooling the same quickly to leave a large amt. of unsolutionized carbide. CONSTITUTION:Alloy steel consisting of 0.15-0.45% C, <=1.0% Si, <=2.0% Mn, 5.0-10.0% Ni, and 18.0-20.0% Cr is prepared. Thence, this alloy steel is hot- worked and is then allowed to col or held to the solutionizing temp. of <=1,000 deg.C, after which it is cooled quickly or both treatments are accomplished. As a result, a large amt. of unsolutionized carbide is left on the alloy steel after said treatment, whereby the austenitic steel having the intended high fatigue strength is obtd.
JP3089581A 1981-03-04 1981-03-04 Production of austenitic steel having high fatigue strength Pending JPS57145927A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3089581A JPS57145927A (en) 1981-03-04 1981-03-04 Production of austenitic steel having high fatigue strength

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3089581A JPS57145927A (en) 1981-03-04 1981-03-04 Production of austenitic steel having high fatigue strength

Publications (1)

Publication Number Publication Date
JPS57145927A true JPS57145927A (en) 1982-09-09

Family

ID=12316458

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3089581A Pending JPS57145927A (en) 1981-03-04 1981-03-04 Production of austenitic steel having high fatigue strength

Country Status (1)

Country Link
JP (1) JPS57145927A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010010636A1 (en) * 2008-07-25 2010-01-28 日鍛バルブ株式会社 Exhaust poppet valve and solution treatment method of poppet valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010010636A1 (en) * 2008-07-25 2010-01-28 日鍛バルブ株式会社 Exhaust poppet valve and solution treatment method of poppet valve
CN102105603A (en) * 2008-07-25 2011-06-22 日锻阀门株式会社 Exhaust poppet valve and solution treatment method of poppet valve
JP5383682B2 (en) * 2008-07-25 2014-01-08 日鍛バルブ株式会社 Exhaust poppet valve and solution treatment method for the valve
US8689761B2 (en) 2008-07-25 2014-04-08 Nittan Valve Co., Ltd. Exhaust poppet valve and solution heat treatment method of the same

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