JP2020518729A5 - - Google Patents

Info

Publication number

JP2020518729A5

JP2020518729A5 JP2019560224A JP2019560224A JP2020518729A5 JP 2020518729 A5 JP2020518729 A5 JP 2020518729A5 JP 2019560224 A JP2019560224 A JP 2019560224A JP 2019560224 A JP2019560224 A JP 2019560224A JP 2020518729 A5 JP2020518729 A5 JP 2020518729A5

Authority

JP

Japan

Prior art keywords

martensite

steel sheet

steel plate

temperature

distributed

Prior art date

2018-05-07

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
• Discuss

• 229910000734 martensite Inorganic materials 0.000 claims description 107
• 229910000831 Steel Inorganic materials 0.000 claims description 87
• 239000010959 steel Substances 0.000 claims description 87
• 229910000859 α-Fe Inorganic materials 0.000 claims description 63
• 229910001566 austenite Inorganic materials 0.000 claims description 35
• 238000000137 annealing Methods 0.000 claims description 32
• 230000000717 retained effect Effects 0.000 claims description 24
• 229910001563 bainite Inorganic materials 0.000 claims description 22
• 238000000034 method Methods 0.000 claims description 18
• 238000010791 quenching Methods 0.000 claims description 18
• 230000000171 quenching effect Effects 0.000 claims description 18
• 238000009826 distribution Methods 0.000 claims description 10
• 239000010960 cold rolled steel Substances 0.000 claims description 8
• 238000001816 cooling Methods 0.000 claims description 8
• 230000009466 transformation Effects 0.000 claims description 6
• 239000011248 coating agent Substances 0.000 claims description 5
• 238000000576 coating method Methods 0.000 claims description 5
• 238000010438 heat treatment Methods 0.000 claims description 5
• 239000000203 mixture Substances 0.000 claims description 5
• 239000000126 substance Substances 0.000 claims description 5
• 229910000760 Hardened steel Inorganic materials 0.000 claims description 4
• 239000012535 impurity Substances 0.000 claims description 4
• 238000002844 melting Methods 0.000 claims description 2
• 230000008018 melting Effects 0.000 claims description 2
• 238000004519 manufacturing process Methods 0.000 claims 7
• 238000003466 welding Methods 0.000 claims 3
• 229910001297 Zn alloy Inorganic materials 0.000 claims 2
• 229910001338 liquidmetal Inorganic materials 0.000 claims 1
• 239000011265 semifinished product Substances 0.000 claims 1
• 238000004804 winding Methods 0.000 claims 1
• 239000011572 manganese Substances 0.000 description 7
• OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
• 229910052799 carbon Inorganic materials 0.000 description 5
• PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
• 229910052748 manganese Inorganic materials 0.000 description 3
• 238000000638 solvent extraction Methods 0.000 description 3
• 238000001000 micrograph Methods 0.000 description 2
• 230000015572 biosynthetic process Effects 0.000 description 1
• 238000005530 etching 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
• 238000007747 plating Methods 0.000 description 1
• -1 that is Inorganic materials 0.000 description 1