Microcacks in Galvannealed Hot Stamping 22MnB5 Steel

Feng, G. W.; Bi, Yu; Zhou, S. Y.; Fang, F.

doi:10.1142/9789813140622_0019

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…Compared to the traditional used hot stamping parts with no coating and Al-Si coating, Zn based coating including pure Zn coating (GI), Zn-Fe coating (GA) and Zn-Ni coating (GA) has been investigated both theoretically and practically. These coatings have the advantage of anti-oxidation during the hot forming, as well as providing additional cathodic protection for the hot stamped parts [1]. However due to low melting point of the phase, hot stamping of the Zn-coated steel has been limited due to liquid metal-induced embrittlement (LME) [2].…”

Section: Introductionmentioning

confidence: 99%

Hot Stamping of Zn-Coated PHS Steel Using Atomization Precooling Technology

Xie¹,

An²,

Geng³

et al. 2023

Atlantis Highlights in Materials Science and Technology

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In this paper, hot stamping of Zn-coated PHS was introduced. Targeting to control or eliminate the liquid metal induced embrittlement phenomenon, a selfmake atomization precooling apparatus was developed to solidification the melted coating during the former heating process. The key role of the apparatus was to provide foggy environment around the heated blank to lower its temperature both rapidly and homogeneously. The relationship between atomization intensity and properties of the hot stamping parts was studied. Low medium flow condition of 50 L/h and high medium flow condition of 100L/h were adopted with the same other test parameters. Mechanical properties and microstructure as well as LME were detected. The results show that under low medium flow condition, no qualified products can be deserved while with high medium flow condition, qualified products can be achieved.

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Section: Introductionmentioning

confidence: 99%