Phase composition and microstructure of Zn coated press hardening steels for direct hot stamping

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F18%3A43916897" target="_blank" >RIV/60461373:22310/18:43916897 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.21062/ujep/180.2018/a/1213-2489/MT/18/5/758" target="_blank" >http://dx.doi.org/10.21062/ujep/180.2018/a/1213-2489/MT/18/5/758</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.21062/ujep/180.2018/a/1213-2489/MT/18/5/758" target="_blank" >10.21062/ujep/180.2018/a/1213-2489/MT/18/5/758</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Phase composition and microstructure of Zn coated press hardening steels for direct hot stamping

Popis výsledku v původním jazyce

Decarburization and oxidation occur during production of press hardening steels (PHS) used in automotive. Therefore, coatings are applied on the steel surface to prevent this. The most common Zn coatings have not been processable by available direct hot stamping technology ordinarily used to produce the PHS and have been replaced by Al-Si coatings. However, the Al-Si coatings have a negative impact on joining technologies and further processing. Recently, the modification of direct hot stamping, which enables process the PHS with Zn coatings, was introduced. We investigated the microstructure, phase composition and distribution of particular phases (SEM-EDS, XRD), as well as micro-hardness of the Zn coated PHS prepared by the modified direct hot stamping. The PHS revealed the coating with 25 ± 3 μm thickness and continuous interface consisting of α-Fe(Zn) solid solution, Γ and Γ1 intermetallic phases and zinc oxides enriched with manganese. The thorough description of the material is important in development of further processing steps such as joining technologies and corrosion resistance. © 2018. Published by Manufacturing Technology.

Název v anglickém jazyce

Phase composition and microstructure of Zn coated press hardening steels for direct hot stamping

Popis výsledku anglicky

Decarburization and oxidation occur during production of press hardening steels (PHS) used in automotive. Therefore, coatings are applied on the steel surface to prevent this. The most common Zn coatings have not been processable by available direct hot stamping technology ordinarily used to produce the PHS and have been replaced by Al-Si coatings. However, the Al-Si coatings have a negative impact on joining technologies and further processing. Recently, the modification of direct hot stamping, which enables process the PHS with Zn coatings, was introduced. We investigated the microstructure, phase composition and distribution of particular phases (SEM-EDS, XRD), as well as micro-hardness of the Zn coated PHS prepared by the modified direct hot stamping. The PHS revealed the coating with 25 ± 3 μm thickness and continuous interface consisting of α-Fe(Zn) solid solution, Γ and Γ1 intermetallic phases and zinc oxides enriched with manganese. The thorough description of the material is important in development of further processing steps such as joining technologies and corrosion resistance. © 2018. Published by Manufacturing Technology.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Manufacturing Technology

ISSN

1213-2489

e-ISSN

—

Svazek periodika

18

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

6

Strana od-do

758-763

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85058065761