Controlled Forging Technology for Special Steels

Fujiwara, Masanao; Yoshida, Hiroaki; Isogawa, Sachihiro

doi:10.4262/denkiseiko.78.259

Cited by 2 publications

(4 citation statements)

References 2 publications

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Section: Phfp-m Steelsmentioning

confidence: 98%

“…increases the hardenability and resultantly enhances the yield stress and tensile strength of the forging products. Figure 2 shows the typical hot-forging and subsequent controlling cooling diagrams of the CFSs such as Q&T, PHFP-M and bainitic steels [38]. The PHFP-M and bainitic steels [45,46] have made great achievements for weight reduction of hot-forging components in the project "Lightweight Forging Initiative" performed in Germany [1,2].…”

Section: Classification Of Hot-forging Process For Low and Medium Carmentioning

confidence: 99%

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Low and Medium Carbon Advanced High-Strength Forging Steels for Automotive Applications

Sugimoto¹,

Hojo²,

Srivastava³

2019

Preprint

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This paper presents the microstructural and mechanical properties of low and medium carbon advanced high-strength forging steels developed based on the third generation advanced high-strength sheet steels, in conjunction with those of conventional high-strength forging steels. Hot-forging followed by an isothermal transformation process considerably improved the mechanical properties of the forging steels. The improvement mechanisms of the mechanical properties were summarized by relating to the matrix structure, the strain-induced transformation of metastable retained austenite and/or a mixture of martensite and austenite.

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Section: Phfp-m Steelsmentioning

confidence: 98%

Section: Classification Of Hot-forging Process For Low and Medium Carmentioning

confidence: 99%

Low and Medium Carbon Advanced High-Strength Forging Steels for Automotive Applications

Sugimoto¹,

Hojo²,

Srivastava³

2019

Preprint

View full text Add to dashboard Cite

show abstract

“…increases the hardenability and resultantly enhances the yield stress and tensile strength of the forging products. Figure 2 shows the typical hot-forging and subsequent controlling cooling diagrams of the CFSs such as Q&T, PHFP-M, and bainitic steels [46]. In this case, the temperature, reduction strain, and reduction strain rate on hot-forging and post cooling rate are important hot-forging parameters controlling the microstructure and mechanical properties of the steels.…”

Section: Classification Of Hot-forging Process For Low and Medium Carmentioning

confidence: 99%

“…Controlled hot-forging increases the yield stress and tensile strength of the PHFP-M forging steels due to the prior austenitic grain refining (and refining of ferritic and pearlitic structures), although the ferrite fraction increases [46]. In this case, forging temperatures are between 800 • C and 1000 • C. The controlled hot-forging is applied to produce METT75 steel (0.38C−0.25Si−1.0Mn−0.2Cr−0.2V) and METT80 steel (0.35C−0.25Si−1.0Mn−0.2Cr−0.3V) [54].…”

Section: Phfp-m Steelsmentioning

confidence: 99%