The purification of AISI 420 stainless steel in laser solid forming

Menghua Song; Xin Lin; Fenggang Liu; Haiou Yang; Weidong Huang

doi:10.1016/j.matdes.2015.10.096

The purification of AISI 420 stainless steel in laser solid forming

Menghua Song, Xin Lin, Fenggang Liu, Haiou Yang, Weidong Huang

材料学院

Northwestern Polytechnical University Xian

科研成果: 期刊稿件 › 文章 › 同行评审

15 引用（Scopus）

摘要

A series of AISI 420 stainless steel deposits were prepared by laser solid forming under different oxygen partial pressures. The variation of the oxygen concentration of the deposit with the oxygen partial pressure was investigated. It is found that the purification occurs when the oxygen partial pressure is lower than a certain threshold. By considering the transfer of gaseous oxides in gas phases, a novel mechanism was developed to explain the purification. The predicted oxygen adsorption/desorption behavior shows a reasonable consistent with the experiment result. It is indicated that volatile oxides play a significant role in the purification. The decrease of the oxygen partial pressure and increase of the contents of elements forming volatile oxides and the original oxygen in the deposited material all promote the purification.

源语言	英语
页（从-至）	1035-1040
页数	6
期刊	Materials and Design
卷	89
DOI	https://doi.org/10.1016/j.matdes.2015.10.096
出版状态	已出版 - 5 1月 2016

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10.1016/j.matdes.2015.10.096

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title = "The purification of AISI 420 stainless steel in laser solid forming",

abstract = "A series of AISI 420 stainless steel deposits were prepared by laser solid forming under different oxygen partial pressures. The variation of the oxygen concentration of the deposit with the oxygen partial pressure was investigated. It is found that the purification occurs when the oxygen partial pressure is lower than a certain threshold. By considering the transfer of gaseous oxides in gas phases, a novel mechanism was developed to explain the purification. The predicted oxygen adsorption/desorption behavior shows a reasonable consistent with the experiment result. It is indicated that volatile oxides play a significant role in the purification. The decrease of the oxygen partial pressure and increase of the contents of elements forming volatile oxides and the original oxygen in the deposited material all promote the purification.",

keywords = "AISI 420 stainless steel, Laser solid forming, Oxygen partial pressure, Purification, Volatile oxides",

author = "Menghua Song and Xin Lin and Fenggang Liu and Haiou Yang and Weidong Huang",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",

year = "2016",

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day = "5",

doi = "10.1016/j.matdes.2015.10.096",

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T1 - The purification of AISI 420 stainless steel in laser solid forming

AU - Song, Menghua

AU - Lin, Xin

AU - Liu, Fenggang

AU - Yang, Haiou

AU - Huang, Weidong

PY - 2016/1/5

Y1 - 2016/1/5

N2 - A series of AISI 420 stainless steel deposits were prepared by laser solid forming under different oxygen partial pressures. The variation of the oxygen concentration of the deposit with the oxygen partial pressure was investigated. It is found that the purification occurs when the oxygen partial pressure is lower than a certain threshold. By considering the transfer of gaseous oxides in gas phases, a novel mechanism was developed to explain the purification. The predicted oxygen adsorption/desorption behavior shows a reasonable consistent with the experiment result. It is indicated that volatile oxides play a significant role in the purification. The decrease of the oxygen partial pressure and increase of the contents of elements forming volatile oxides and the original oxygen in the deposited material all promote the purification.

AB - A series of AISI 420 stainless steel deposits were prepared by laser solid forming under different oxygen partial pressures. The variation of the oxygen concentration of the deposit with the oxygen partial pressure was investigated. It is found that the purification occurs when the oxygen partial pressure is lower than a certain threshold. By considering the transfer of gaseous oxides in gas phases, a novel mechanism was developed to explain the purification. The predicted oxygen adsorption/desorption behavior shows a reasonable consistent with the experiment result. It is indicated that volatile oxides play a significant role in the purification. The decrease of the oxygen partial pressure and increase of the contents of elements forming volatile oxides and the original oxygen in the deposited material all promote the purification.

KW - AISI 420 stainless steel

KW - Laser solid forming

KW - Oxygen partial pressure

KW - Purification

KW - Volatile oxides

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DO - 10.1016/j.matdes.2015.10.096

M3 - 文章

AN - SCOPUS:84947750517

SN - 0264-1275

VL - 89

SP - 1035

EP - 1040

JO - Materials and Design

JF - Materials and Design

ER -

The purification of AISI 420 stainless steel in laser solid forming

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