JPS55158545A - Online measuring method of austenite value in rolled steel plate - Google Patents

Online measuring method of austenite value in rolled steel plate

Info

Publication number
JPS55158545A
JPS55158545A JP6633079A JP6633079A JPS55158545A JP S55158545 A JPS55158545 A JP S55158545A JP 6633079 A JP6633079 A JP 6633079A JP 6633079 A JP6633079 A JP 6633079A JP S55158545 A JPS55158545 A JP S55158545A
Authority
JP
Japan
Prior art keywords
austenite
steel plate
sums
ferrite
value
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
JP6633079A
Other languages
Japanese (ja)
Other versions
JPS6259254B2 (en
Inventor
Takeshi Kitagawa
Yoshiji Tada
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.)
JFE Steel Corp
Rigaku Corp
Original Assignee
Rigaku Industrial Corp
Kawasaki Steel Corp
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 Rigaku Industrial Corp, Kawasaki Steel Corp filed Critical Rigaku Industrial Corp
Priority to JP6633079A priority Critical patent/JPS55158545A/en
Publication of JPS55158545A publication Critical patent/JPS55158545A/en
Publication of JPS6259254B2 publication Critical patent/JPS6259254B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/20—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by using diffraction of the radiation by the materials, e.g. for investigating crystal structure; by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materials; by using reflection of the radiation by the materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

PURPOSE:To make possible the measurement of the austenite value in the steel plate even during the heat treatment process by simultaneously counting each diffraction in tensity of maximum crystal surface in the ferrite and austenite phases by the energy dispersion method and the ratio of the sums is compared with the calibrarion curve after addition. CONSTITUTION:Continuous X-rays irradiates at a fixed incident angle on the rolled steel plate 7 of mixed structure in the ferrite and austenite phases running between roles 8 and the diffracted X-rays from crystal grid faces of each phase are detected with a detector retained at a fixed angle. Then, the wave height of the electric pulse is selected with a multiple wave height analyzer 3 and the data following the analysis is inputted into the electronic computor 5. The sums T.I<alpha> and T.I<gamma>. of the intensity of the diffracted X-rays in each ferrite and austenite phase are obtained and the ratio of the sums T.I<gamma>/T.I<alpha> is compared with the calibration curve previously obtained to determine the austenite value. This enables the continuous measurement of the austenite value even in the heat treatment process.
JP6633079A 1979-05-29 1979-05-29 Online measuring method of austenite value in rolled steel plate Granted JPS55158545A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6633079A JPS55158545A (en) 1979-05-29 1979-05-29 Online measuring method of austenite value in rolled steel plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6633079A JPS55158545A (en) 1979-05-29 1979-05-29 Online measuring method of austenite value in rolled steel plate

Publications (2)

Publication Number Publication Date
JPS55158545A true JPS55158545A (en) 1980-12-10
JPS6259254B2 JPS6259254B2 (en) 1987-12-10

Family

ID=13312719

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6633079A Granted JPS55158545A (en) 1979-05-29 1979-05-29 Online measuring method of austenite value in rolled steel plate

Country Status (1)

Country Link
JP (1) JPS55158545A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4592082A (en) * 1984-08-10 1986-05-27 The United States Of America As Represented By The United States Department Of Energy Quantitative determination of mineral composition by powder X-ray diffraction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4592082A (en) * 1984-08-10 1986-05-27 The United States Of America As Represented By The United States Department Of Energy Quantitative determination of mineral composition by powder X-ray diffraction

Also Published As

Publication number Publication date
JPS6259254B2 (en) 1987-12-10

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