Effect of Cu Content on Corrosion Behavior of 304 Stainless Steel in Al-12Si-<i>x</i>Cu Alloy Melt and Its Mechanism

ZHANG Xiaohua; YU Sirong; GUO Lijuan; YAO Qiang

doi:10.11973/jxgccl201806004

Materials and Mechanical Engineering > 2018 > 42(6): 22-25,64. > DOI: 10.11973/jxgccl201806004

ZHANG Xiaohua, YU Sirong, GUO Lijuan, YAO Qiang. Effect of Cu Content on Corrosion Behavior of 304 Stainless Steel in Al-12Si-xCu Alloy Melt and Its Mechanism[J]. Materials and Mechanical Engineering, 2018, 42(6): 22-25,64. DOI: 10.11973/jxgccl201806004

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Effect of Cu Content on Corrosion Behavior of 304 Stainless Steel in Al-12Si-xCu Alloy Melt and Its Mechanism

1. Department of Mechanical and Control Engineering, Shengli College China University of Petroleum, Dongying 257061, China;
2. College of Mechanical and Electronic Engineering, China University of Petroleum, Qingdao 266580, China;
3. COOEC-Fluor Heavy Industries Co., Zhuhai 519000, China

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Received Date: May 09, 2017
Revised Date: May 09, 2018

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Abstract

304 stainless steel was corroded in Al-12Si-xCu (x=0, 5, 10, 15, mass fraction/%) alloy melts at 620℃ for 120 h. The effect and mechanism of Cu content on corrosion behavior of the stainless steel were studied. The results show that the corrosion rate and the corrosion layer thickness of 304 stainless steel decreased with the increase of Cu content. The surface corrosion layer was composed of inner corrosion layer and outer corrosion layer. The microhardness of outer corrosion layer increased and that of inner corrosion layer decreased with the increase of Cu content. The corrosion reaction mainly occurred between Fe, Cr atoms in the stainless steel and Al, Si atoms in the alloy melt. Cu atom was not involved in the corrosion reaction. However, the addition of Cu reduced the diffusion activation energy of corrosion reaction, resulting in the decrease of corrosion ability of the alloy melt.
- Cu element,
- Al-12Si alloy,
- energy storage material,
- corrosion,
- 304 stainless steel

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[1]	冼焯斌.太阳能相变储能合金容器材料的选择及性能研究[D].广州:广东工业大学,2011:2-4.
[2]	程晓敏,何高,吴兴文.铝基合金储热材料在太阳能热发电中的应用及研究进展[J].材料导报,2010,24(17):139-143.
[3]	张仁元,孙建强,卢国辉.共晶铝-镁-锌储能合金的热稳定性和液态腐蚀性[J].机械工程材料,2006,30(7):11-17.
[4]	ZHANG X H, YU S R, XU J. Erosion behavior of Al-12Si-2Mg-15Cu alloy against 304 stainless steel surface[J]. Materials Science Forum, 2014, 788:171-175.
[5]	李新华, 李国喜, 吴勇,等. 钢铁制件热浸镀铝与渗镀[M]. 北京:化学工业出版社, 2009:284-285.
[6]	邹向, 张仁元, 范绮莲. 金属相变储热容器的高温腐蚀与防护[J]. 腐蚀与防护, 1992, 13(3):111-114.
[7]	沈学忠. 铝硅二元共晶合金储热循环稳定性及其对容器的表面处理研究[D]. 广州:广东工业大学, 2007:33-36.
[8]	马云龙. 热浸镀铝工艺的研究及Cu、Ti对镀层性能的影响[D]. 鞍山:鞍山科技大学, 2004:34-44.
[9]	YOUSAF M, IQBAL J, AJMAL M. Variables affecting growth and morphology of the intermetallic layer (Fe₂Al₅)[J]. Materials Characterization, 2011, 62(5):517-525.
[10]	金辉, 李新梅. 微量锆、镧对Al-Zn-Mg-Cu合金组织和性能的影响[J]. 机械工程材料, 2017, 41(2):102-105.
[11]	DYBKOV V I. Interaction of 18Cr-10Ni stainless steel with liquid aluminium[J]. Journal of Materials Science, 1990, 25(8):3615-3633.
[12]	黄守伦, 杨明红. 铁基合金铝液腐蚀机理的研究[J]. 武汉交通科技大学学报, 2000, 24(6):663-666.
[13]	谭永刚. 铝基相变储热材料的界面腐蚀行为及腐蚀机理研究[D]. 武汉:武汉理工大学, 2009:32-35.
[14]	陈枭,张仁元,李风. 太阳能热发电换热管在Al-12.07%Si中的腐蚀研究[J]. 材料导报, 2011, 25(18):78-80.
[15]	AKDENIZ M V, MEKHRABOV A O, YILMAZ T. The role of Si addition on the interfacial interaction in Fe-Al diffusion layer[J]. Scripta Metallurgica et Materialia, 1994, 31(12):1723-1728.欢迎来稿欢迎订阅欢迎刊登广告

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Effect of Cu Content on Corrosion Behavior of 304 Stainless Steel in Al-12Si-xCu Alloy Melt and Its Mechanism

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