A Thermodynamic Model for Hydrogen Absorption of Al-Si-Mg Alloy Melt

Qin Yiming; Zhuang Linzhong; Feng Enlang; Zhao Jieyang; Wang Chunxia

doi:10.15980/j.tzzz.2020.04.025

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A Thermodynamic Model for Hydrogen Absorption of Al-Si-Mg Alloy Melt
Vol. 40, Issue 4, Pages: 455-457(2020)
Published： 2020 ，
DOI： 10.15980/j.tzzz.2020.04.025

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[1]秦颐鸣,庄林忠,冯恩浪,赵解扬,王春霞.Al-Si-Mg系铝合金熔体吸氢热力学研究[J].特种铸造及有色合金,2020,40(04):455-457.

Qin Yiming, Zhuang Linzhong, Feng Enlang, et al. A Thermodynamic Model for Hydrogen Absorption of Al-Si-Mg Alloy Melt. [J]. Special Casting & Nonferrous Alloys 40(4):455-457(2020)
[1]秦颐鸣,庄林忠,冯恩浪,赵解扬,王春霞.Al-Si-Mg系铝合金熔体吸氢热力学研究[J].特种铸造及有色合金,2020,40(04):455-457. DOI： 10.15980/j.tzzz.2020.04.025.

Qin Yiming, Zhuang Linzhong, Feng Enlang, et al. A Thermodynamic Model for Hydrogen Absorption of Al-Si-Mg Alloy Melt. [J]. Special Casting & Nonferrous Alloys 40(4):455-457(2020) DOI： 10.15980/j.tzzz.2020.04.025.

摘要

通过建立铝合金熔体吸氢的热力学过程模型

分析了影响Al-Si-Mg系铝合金熔体吸氢的热力学因素。结果表明

降低空气湿度、熔炼温度、压力有利于降低铝液吸氢速率;Si、Mg含量与空气/铝液界面处的氢含量成线性关系

提高Si含量、降低Mg含量有利于降低空气/铝液界面处的氢含量

从而降低铝液的吸氢速率。

Abstract

The thermodynamic factors affecting the hydrogen absorption of Al-Si-Mg alloy melt were analyzed by establishing the thermodynamic model.The results show that through reducing air humidity

melting temperature and pressure

it is helpful to reducing hydrogen absorption rate of aluminum melt.The content of silicon and magnesium is linearly proportional to the content of[H]*at the air/melt interface.Through increasing the content of silicon and reducing the content of magnesium

it is conductive to reducing the content of[H]*at the air/melt interface

thereby reducing the hydrogen absorption rate of liquid aluminum.