A Comprehensive Review towards Oxidation Resistant Press-Hardened Steels

Abstract

As an important lightweight material, press-hardened steels (PHS) are now widely used in the car body-in-white. However, severe oxidation of conventional Mn-B bare sheets not only damages production molds, but also prevents subsequent welding and painting, leading to a significant increase in production costs. The aim of this review is to systematically summarize the current solutions to overcome the problem of high-temperature oxidation of conventional Mn-B PHS and to highlight future directions for improvement. The review begins with a brief background on PHS, followed by a detailed description of measures to improve the oxidation resistance of conventional Mn-B PHS and the development of novel PHS with superior oxidation resistance. The oxidation resistance solutions for conventional Mn-B PHS mainly include the use of coatings and pre-deposited films. In contrast, the oxidation resistant PHS mainly includes the use of the oxidation resistant elements Cr, Si, Al or rare earth elements to improve the steel’s own high-temperature oxidation resistance.

Keywords

Press-hardened steel / High-temperature oxidation / Coating / Oxidation resistance / Hot stamping

Acknowledgment

No specific acknowledgment except for funding sources.

Author Contributions

Z.L.: Investigation, Data curation, Formal analysis, Writing—original draft. L.W.: Methodology, Writing—review & editing, Resources. Z.W.: Validation, Writing—review & editing. J.W.: Writing—review & editing, Supervision. W.X.: Writing—review & editing, Resources, Supervision.

Ethics Statement

Not applicable.

Informed Consent Statement

Not applicable.

5Data Availability Statement

Not applicable.

Data Availability Statement

Not applicable.

Funding

National Natural Science Foundation of China(Grant numbers: U22A20106 and U22A20173).

Declaration of Competing Interest

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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