The characteristics of chromized 1020 steel with electrical discharge machining and Ni electroplating pretreatments

被引：20
作者：
Bai, Ching-Yuan [1 ,2 ]
Lee, Jeou-Long [3 ]
Wen, Tse-Min [4 ]
Hou, Kung-Hsu [5 ]
Wu, Min-Sheng [5 ]
Ger, Ming-Der [2 ]
机构：
[1] Lunghwa Univ Sci & Technol, Grad Sch Engn Technol, Tao Yuan 333, Taiwan
[2] Natl Def Univ, Chung Cheng Inst Technol, Dept Chem & Mat Sci & Engn, Tao Yuan 335, Taiwan
[3] Lunghwa Univ Sci & Technol, Dept Chem & Mat Engn, Tao Yuan 333, Taiwan
[4] Natl Def Univ, Chung Cheng Inst Technol, Sch Def Sci, Tao Yuan 335, Taiwan
[5] Natl Def Univ, Chung Cheng Inst Technol, Dept Power Vehicles & Syst Engn, Tao Yuan 335, Taiwan
来源：
APPLIED SURFACE SCIENCE | 2011年 / 257卷 / 08期
关键词：
AISI; 1020; steel; Low-temperature pack chromization; Electrical discharge machining; Electroplating; Corrosion current density; BIPOLAR PLATE MATERIAL; 316L STAINLESS-STEEL; CORROSION-RESISTANCE; CONTACT RESISTANCE; ALLOYING ELEMENTS; PASSIVE FILMS; FUEL-CELL; IRON; PERFORMANCE; CARBIDES;
D O I：
10.1016/j.apsusc.2010.11.070
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A uniform and continuous chromized coating on AISI 1020 steel is produced by low-temperature pack chromization (LTPC) with electrical discharge machining and Ni electroplating pretreatments. The anticorrosive performance of the chromized steels is investigated in a 0.5 M H2SO4 solution at room temperature. The testing results indicate that the chromized specimen with electrical discharge machining and Ni electroplating pretreatments exhibits the lowest corrosion current density, 2.16 x 10(-8) Acm(-2), among the tested specimens. The corrosion resistance of all tested specimens are in the order of bare 1020 < 1020-Cr(700-2) < 1020-Ni-Cr(700-2) < 1020-EDM-Ni-Cr(700-2). Moreover, the 1020-Ni-Cr(7002) specimen have the best conductivity as a result of the less amount of oxides in the superficial coating. (C) 2010 Elsevier B. V. All rights reserved.
引用
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页码：3529 / 3537
页数：9
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