AC2B アルミニウム合金溶湯の水素溶解度および真空脱水素処理

Yuki Yamazaki; Takehito Hiraki; Takahiro Suzumura; Takahiro Miki; Yasushi Sasaki; Tetsuya Nagasaka

doi:10.2464/jilm.71.44

AC2B アルミニウム合金溶湯の水素溶解度および真空脱水素処理

Translated title of the contribution: Hydrogen solubility and removal by vacuum treatment for molten AC2B aluminum alloy

Yuki Yamazaki, Takehito Hiraki, Takahiro Suzumura, Takahiro Miki, Yasushi Sasaki, Tetsuya Nagasaka

ENG - Metallurgy

Research output: Contribution to journal › Article › peer-review

Abstract

Extremely low levels of hydrogen concentration in molten aluminum cast alloy has been required for the production of high-performance alloys. AC2B (Al-5.0〜7.0mass%Si-2.0〜4.0mass%Cu) alloy, which is one of the typical aluminum casting alloys, is mainly used for the automobile industry. It is expected that vacuum treatment of molten alloy can lead to small oxidation loss of metal and excellent hydrogen removal. In order to clarify the hydrogen solubility and removal mechanism of vacuum degassing, hydrogen concentrations of AC2B alloy after hydrogen injection at the temperature of 973 to 1123K and vacuum treatment of 5×10²Pa at 1023K were investigated in this study. It was found that hydrogen solubility of molten AC2B aluminum alloy can be described by the following equation: 1 4891 log(S(cm³ / 100 g-Al)) = log(P_{H 2} (mmHg)) − + 3.165 2 T (K).

Translated title of the contribution	Hydrogen solubility and removal by vacuum treatment for molten AC2B aluminum alloy
Original language	Japanese
Pages (from-to)	44-50
Number of pages	7
Journal	Keikinzoku/Journal of Japan Institute of Light Metals
Volume	71
Issue number	1
DOIs	https://doi.org/10.2464/jilm.71.44
Publication status	Published - 2021 Jan 15

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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title = "AC2B アルミニウム合金溶湯の水素溶解度および真空脱水素処理",

abstract = "Extremely low levels of hydrogen concentration in molten aluminum cast alloy has been required for the production of high-performance alloys. AC2B (Al-5.0〜7.0mass%Si-2.0〜4.0mass%Cu) alloy, which is one of the typical aluminum casting alloys, is mainly used for the automobile industry. It is expected that vacuum treatment of molten alloy can lead to small oxidation loss of metal and excellent hydrogen removal. In order to clarify the hydrogen solubility and removal mechanism of vacuum degassing, hydrogen concentrations of AC2B alloy after hydrogen injection at the temperature of 973 to 1123K and vacuum treatment of 5×102Pa at 1023K were investigated in this study. It was found that hydrogen solubility of molten AC2B aluminum alloy can be described by the following equation: 1 4891 log(S(cm3 / 100 g-Al)) = log(PH 2 (mmHg)) − + 3.165 2 T (K).",

keywords = "AC2B, Aluminum alloy, Hydrogen solubility, Vacuum degassing",

author = "Yuki Yamazaki and Takehito Hiraki and Takahiro Suzumura and Takahiro Miki and Yasushi Sasaki and Tetsuya Nagasaka",

note = "Publisher Copyright: {\textcopyright} 2021 The Japan Institute of Light Metals",

year = "2021",

month = jan,

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doi = "10.2464/jilm.71.44",

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AU - Yamazaki, Yuki

AU - Hiraki, Takehito

AU - Suzumura, Takahiro

AU - Miki, Takahiro

AU - Sasaki, Yasushi

AU - Nagasaka, Tetsuya

PY - 2021/1/15

Y1 - 2021/1/15

N2 - Extremely low levels of hydrogen concentration in molten aluminum cast alloy has been required for the production of high-performance alloys. AC2B (Al-5.0〜7.0mass%Si-2.0〜4.0mass%Cu) alloy, which is one of the typical aluminum casting alloys, is mainly used for the automobile industry. It is expected that vacuum treatment of molten alloy can lead to small oxidation loss of metal and excellent hydrogen removal. In order to clarify the hydrogen solubility and removal mechanism of vacuum degassing, hydrogen concentrations of AC2B alloy after hydrogen injection at the temperature of 973 to 1123K and vacuum treatment of 5×102Pa at 1023K were investigated in this study. It was found that hydrogen solubility of molten AC2B aluminum alloy can be described by the following equation: 1 4891 log(S(cm3 / 100 g-Al)) = log(PH 2 (mmHg)) − + 3.165 2 T (K).

AB - Extremely low levels of hydrogen concentration in molten aluminum cast alloy has been required for the production of high-performance alloys. AC2B (Al-5.0〜7.0mass%Si-2.0〜4.0mass%Cu) alloy, which is one of the typical aluminum casting alloys, is mainly used for the automobile industry. It is expected that vacuum treatment of molten alloy can lead to small oxidation loss of metal and excellent hydrogen removal. In order to clarify the hydrogen solubility and removal mechanism of vacuum degassing, hydrogen concentrations of AC2B alloy after hydrogen injection at the temperature of 973 to 1123K and vacuum treatment of 5×102Pa at 1023K were investigated in this study. It was found that hydrogen solubility of molten AC2B aluminum alloy can be described by the following equation: 1 4891 log(S(cm3 / 100 g-Al)) = log(PH 2 (mmHg)) − + 3.165 2 T (K).

KW - AC2B

KW - Aluminum alloy

KW - Hydrogen solubility

KW - Vacuum degassing

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AC2B アルミニウム合金溶湯の水素溶解度および真空脱水素処理

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