Development of high-strength piston using die casting process

Tanihata, Akito; Sato, Naoko; Katsumata, Koji; Shiraishi, Takashi; Oda, Kazuhiro; Endo, Osamu

doi:10.2464/jilm.57.131

Cited by 2 publications

(1 citation statement)

References 4 publications

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“…In the case of engine piston, both high fatigue and creep strength at high temperature are required. The additions of Fe, Ni and Mn in Al-Si alloys make various morphology and size of intermetallic compounds formed in the Al-Si alloys [2]. The compounds are hard and stable at higher temperature so that it is effective to increase fatigue and creep strength.…”

Section: Introductionmentioning

confidence: 99%

Microstructural Softening of Eutectic and Hyper-eutectic Al-Si-X Continuous Casts by Annealing

Oshikiri

Umezawa

Nakamura

2012

Trans. Mat. Res. Soc. Japan

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Softening behavior of eutectic and hyper-eutectic Al-Si-Cu-Mg-(Ni, Fe, Mn) cast billets produced by the new vertical semi-continuous casting process using an adiabatic and rapid cooling mold was examined. Ductile fracture manner fully covered on fracture surface of the specimens fatigued at 523 K, and was responsible for the low fatigue strength. Hyper-eutectic casts containing coarse Si crystals exhibited higher hardness than eutectic ones. However the hyper-eutectic alloys remarkably showed softening behavior above 523 K. The additions of Fe and Mn were effective to increase hardness of the Al-Si-Cu-Mg alloys at high temperature. Coarsening of Al-Cu-Mg compounds and precipitation of acicular compounds enriched Mg-Si-Cu were detected in the matrix of the hyper-eutectic alloy annealed at 523 K, and those may result in the softening behavior.

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Section: Introductionmentioning

confidence: 99%

Microstructural Softening of Eutectic and Hyper-eutectic Al-Si-X Continuous Casts by Annealing

Oshikiri

Umezawa

Nakamura

2012

Trans. Mat. Res. Soc. Japan

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4032 aluminum alloy billet fabricated by continuous casting process with heat insulating and rapid cooling mold

Takagi¹,

Uetani²,

Dohi³

et al. 2008

J. Japan Inst. Light Metals

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In order to improve on the quality of Al-Si alloy billets, which are used as the feed stock for precision forging, a new vertical semi-continuous casting process has been adopted using a heat insulating and rapid cooling mold HI-RCM casting process. In our study, 4032 aluminum alloy billets with smooth surfaces have been obtained by controlling casting rates of HI-RCM process. Distributions of primary silicon, eutectic structure and secondary dendrite arm spacing DAS in the conventional DC casting billets were compared with the smooth surface billets fabricated by HI-RCM casting process under optimum conditions, and the latter one had finer and more homogeneous microstructures than those in the former billets.

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Development of high-strength piston using die casting process

Cited by 2 publications

References 4 publications

Microstructural Softening of Eutectic and Hyper-eutectic Al-Si-X Continuous Casts by Annealing

Microstructural Softening of Eutectic and Hyper-eutectic Al-Si-X Continuous Casts by Annealing

4032 aluminum alloy billet fabricated by continuous casting process with heat insulating and rapid cooling mold

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