STEEL MATERIAL WITH ALUMINUM-BASED PLATING FOR HOT-FORMING, STEEL MATERIAL COMPONENT WITH ALUMINUM-BASED PLATING, AND METHOD FOR MANUFACTURING BOTH

• Main Authors: KURIYAMA, Tomohiro, HATTORI, Yasunori, TSURUTA, Akira, MURATA, Yasushi, NOGIWA, Kimihiro, MIURA, Takuya
• Format: Patent
• Language: English; French; Japanese
• Published: 26.08.2021
• Subjects: 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; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

Provided is a steel material with aluminum-based plating for hot-forming that comprises, on at least one surface of the steel material, an aluminum-based plating layer with an alloying rate of at least 35%, the ratio of the maximum thickness of the aluminum-based plating layer to the minimum thickness of the aluminum-based plating layer being 1.0-5.0. L'invention concerne un matériau d'acier plaqué d'AL pour formage à chaud qui possède une couche de placage d'AL de taux d'alliage supérieur ou égal à 35% au niveau d'au moins une surface du matériau d'acier, et qui présente un rapport d'épaisseur maximale de ladite couche de placage d'AL vis-à-vis de l'épaisseur minimale de ladite couche de placage d'AL compris entre １,０ et ５,０. 鋼材の少なくとも１つの表面に合金化率が３５％以上のＡｌ系めっき層を有し、前記Ａｌ系めっき層の最小厚さに対する前記Ａｌ系めっき層の最大厚さの比が１．０～５．０である熱間成形用Ａｌ系めっき鋼材とする。