JP2019505691A5 - - Google Patents

Info

Publication number

JP2019505691A5

JP2019505691A5 JP2018551515A JP2018551515A JP2019505691A5 JP 2019505691 A5 JP2019505691 A5 JP 2019505691A5 JP 2018551515 A JP2018551515 A JP 2018551515A JP 2018551515 A JP2018551515 A JP 2018551515A JP 2019505691 A5 JP2019505691 A5 JP 2019505691A5

Authority

JP

Japan

Prior art keywords

steel sheet

steel

ferrite

temperature

chemical composition

Prior art date

2016-12-21

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

Links

• Espacenet
• Global Dossier
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• 229910000831 Steel Inorganic materials 0.000 claims description 74
• 239000010959 steel Substances 0.000 claims description 74
• 229910000859 α-Fe Inorganic materials 0.000 claims description 62
• 230000009466 transformation Effects 0.000 claims description 39
• 238000000034 method Methods 0.000 claims description 22
• 229910001566 austenite Inorganic materials 0.000 claims description 20
• 238000001816 cooling Methods 0.000 claims description 20
• 238000000137 annealing Methods 0.000 claims description 18
• 229910000734 martensite Inorganic materials 0.000 claims description 18
• 238000010791 quenching Methods 0.000 claims description 18
• 239000000203 mixture Substances 0.000 claims description 17
• 230000000171 quenching effect Effects 0.000 claims description 17
• 239000000126 substance Substances 0.000 claims description 13
• 229910001563 bainite Inorganic materials 0.000 claims description 12
• 238000009826 distribution Methods 0.000 claims description 12
• 238000010583 slow cooling Methods 0.000 claims description 11
• 238000010438 heat treatment Methods 0.000 claims description 6
• 238000004519 manufacturing process Methods 0.000 claims description 5
• 230000000717 retained effect Effects 0.000 claims description 5
• 239000010960 cold rolled steel Substances 0.000 claims description 4
• 229910001297 Zn alloy Inorganic materials 0.000 claims description 3
• 238000002848 electrochemical method Methods 0.000 claims description 3
• 239000012535 impurity Substances 0.000 claims description 3
• 238000001771 vacuum deposition Methods 0.000 claims description 3
• 239000011248 coating agent Substances 0.000 claims description 2
• 238000000576 coating method Methods 0.000 claims description 2
• 238000003466 welding Methods 0.000 claims 2
• 241000219310 Beta vulgaris subsp. vulgaris Species 0.000 claims 1
• 235000021536 Sugar beet Nutrition 0.000 claims 1
• 238000005097 cold rolling Methods 0.000 claims 1
• OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
• 229910052799 carbon Inorganic materials 0.000 description 6
• 230000015572 biosynthetic process Effects 0.000 description 5
• 239000011572 manganese Substances 0.000 description 5
• PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 4
• 229910052748 manganese Inorganic materials 0.000 description 4
• 238000001000 micrograph Methods 0.000 description 3
• 238000003303 reheating Methods 0.000 description 3
• 229910000838 Al alloy Inorganic materials 0.000 description 1
• 229910000760 Hardened steel Inorganic materials 0.000 description 1
• 229910000861 Mg alloy Inorganic materials 0.000 description 1
• 229910000990 Ni alloy Inorganic materials 0.000 description 1
• HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
• PGTXKIZLOWULDJ-UHFFFAOYSA-N [Mg].[Zn] Chemical compound [Mg].[Zn] PGTXKIZLOWULDJ-UHFFFAOYSA-N 0.000 description 1
• 238000005530 etching Methods 0.000 description 1
• 238000007572 expansion measurement Methods 0.000 description 1
• 239000012467 final product Substances 0.000 description 1
• 238000001912 gas jet deposition Methods 0.000 description 1
• 230000006698 induction Effects 0.000 description 1
• 238000012423 maintenance Methods 0.000 description 1
• WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
• QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 1
• 229910001562 pearlite Inorganic materials 0.000 description 1
• 238000005240 physical vapour deposition Methods 0.000 description 1
• 238000000638 solvent extraction Methods 0.000 description 1
• 239000011701 zinc Substances 0.000 description 1
• 229910052725 zinc Inorganic materials 0.000 description 1
• -1 zinc-magnesium-aluminum Chemical compound 0.000 description 1