Duplex treatment of AISI 1045 steel by plasma nitriding and aluminizing

被引:20
作者
Haftlang, Farahnaz [1 ]
Habibolahzadeh, Ali [1 ]
Sohi, Mahmoud Heydarzadeh [2 ]
机构
[1] Semnan Univ, Fac Engn, Dept Met & Mat Engn, Semnan, Iran
[2] Univ Tehran, Coll Engn, Sch Met & Mat, Tehran, Iran
关键词
Duplex treatment; Plasma nitriding; Aluminizing; Aluminum nitride; Steel; ALUMINUM NITRIDE; SURFACE-TREATMENT; TITANIUM NITRIDE; CARBON-STEEL; COATINGS; WEAR; TEMPERATURE; MECHANISMS; DEPOSITION; PERFORMANCE;
D O I
10.1016/j.vacuum.2014.04.014
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Surface of medium carbon steel (AISI 1045) was modified via duplex treatment of plasma nitriding (PN) and pack aluminizing (Al). Some samples were modified via plasma nitriding and post-aluminizing (PN-Al) and the others by aluminizing followed by plasma nitriding (Al- PN) techniques. The treated samples were characterized by scanning electron microscope (SEM), X-ray diffractometer (XRD), and Vickers microhardness test. It was evident that the surface topology of duplex treated layer became coarser as plasma nitriding temperature increased to 823 K. AlN phase was the dominant phase in the duplex treated surface layers, some minor aluminide or iron nitride phases also existed. However, only AlN was detected on the steel after plasma nitriding at 823 K followed by aluminizing (PN823-Al); having the highest hardness of 1284 HV among the others. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:155 / 158
页数:4
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