핫 스탬프 성형체

• Main Authors: MAKI JUN, MITSUNOBU TAKUYA, TAKAHASHI TAKEHIRO
• Format: Patent
• Language: Korean
• Published: 21.10.2022
• Subjects: ALLOYS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; FERROUS OR NON-FERROUS ALLOYS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METALLURGY; PERFORMING OPERATIONS; PUNCHING METAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

강 모재와, 강 모재의 표면에 형성된 Al-Zn-Mg계 도금층을 구비하고, 상기 도금층이 소정의 화학 조성을 갖고, 상기 도금층이, 강 모재와의 계면에 위치하는 Fe 및 Al을 함유하는 계면층과, 계면층의 위에 위치하는 주층을 구비하고, 주층이, 면적률로, 10.0 내지 70.0％의 Mg-Zn 함유상, 및 30.0 내지 90.0％의 Fe-Al 함유상을 포함하고, Mg-Zn 함유상이, MgZn상, Mg2Zn3상, 및 MgZn2상으로 이루어지는 군에서 선택되는 적어도 1종을 포함하고, Fe-Al 함유상이, FeAl상 및 Fe-Al-Zn상을 포함하고, 주층 중의 Fe-Al-Zn상의 면적률이 10.0 초과 내지 75.0％인 핫 스탬프 성형체가 제공된다. A hot stamped body comprising a steel base material and an Al-Zn-Mg-based plating layer formed on a surface of the steel base material, wherein the plating layer has a predetermined chemical composition, the plating layer comprises an interfacial layer positioned at an interface with the steel base material and containing Fe and Al and a main layer positioned on the interfacial layer, the main layer comprises, by area ratio, 10.0 to 70.0% of an Mg-Zn containing phase and 30.0 to 90.0% of an Fe-Al containing phase, the Mg-Zn containing phase comprises at least one selected from the group consisting of an MgZn phase, Mg2Zn3 phase, and MgZn2 phase, and the Fe-Al containing phase comprises an FeAl phase and Fe-Al-Zn phase and an area ratio of the Fe-Al-Zn phase in the main layer is more than 10.0 to 75.0%.