Investigation Of Various Method For Steel Surface Modification

2016 ◽  
pp. 209-220
Keyword(s):  
Surface Modification ◽  
Steel Surface

Study on the friction characteristics of 304 steel with composite surface modification

2017 ◽  
Vol 69 (2) ◽  
pp. 248-258 ◽  
Author(s):  
Wengang Chen ◽  
Xueyuan Liu ◽  
Lili Zheng
Keyword(s):  
Surface Modification ◽  
Friction And Wear ◽  
Steel Surface ◽  
Testing Machine ◽  
Wear Testing ◽  
Tribological Characteristics ◽  
Textured Surface ◽  
Content Type ◽  
Good Basis ◽  
Modified Surface

Purpose This paper aims to clarify the friction properties of 304 steel surface modification. The surface modification includes laser texturing processing and nitriding treatment on 304 steel surface, and then the friction properties’ test was conducted on different friction directions and different upper test samples by using microfriction and wear testing machine. Design/methodology/approach The diameter and spacing of 100-, 150-, 200-, 300-μm pit array on the surface of 304 steel were calculated using a M-DPSS-50 semiconductor laser device. Then, the textured surface was nitriding-treated using a nitriding salt bath device. The chemical composition, surface morphology and surface microhardness of the composite-modified surface were measured by X-ray diffraction and by using an optical microscope and a microhardness tester. The tribological characteristics of the composite-modified surface were tested by MRTR microcomputer-controlled multifunctional friction and wear testing machine. Findings The result showed that a rule pit texture surface was obtained by the texture processing. The microhardness of nitriding treatment surface reached 574.27HV0.1, which significantly higher than 222.58HV0.1 of 304 steel. The composite-modified surface has excellent anti-friction and wear resistance properties when the upper specimen was GCr15 steel and ZrO2, respectively. The composite-modified surface has excellent anti-friction and anti-wear properties after long time friction under different angles. However, the friction coefficient and wear morphology of the friction pairs are not affected by the friction angle. Research limitations/implications Because of the chosen research approach, the research results may lack generalizability. Therefore, researchers are encouraged to test the proposed propositions further. Practical implications The paper conducted a systematic study of the tribological characteristics of 304 steel composite modification surface and provided a good basis for the extensive application of 304 steel. Social implications The study provides a good basis for the extensive application of 304 steel. Originality/value This paper fulfils an identified need to study the extensive application of 304 steel.

Steel Surface Modification with Carbon Nanomaterial Using Concentrated Energy Flows

2018 ◽  
Vol 60 (5-6) ◽  
pp. 367-372 ◽  
Author(s):  
O. V. Chudina ◽  
A. V. Eletskii ◽  
E. V. Terent’ev ◽  
G. S. Bocharov
Keyword(s):  
Surface Modification ◽  
Steel Surface ◽  
Carbon Nanomaterial ◽  
Energy Flows

scholarly journals Surface modification of ASP 30 steel induced by femtosecond laser with 1014 and 1013 W/cm2 intensity in vacuum

2017 ◽  
Vol 35 (3) ◽  
pp. 534-542 ◽  
Author(s):  
M. Trtica ◽  
J. Limpouch ◽  
P. Gavrilov ◽  
P. Hribek ◽  
J. Stasic ◽  
...  
Keyword(s):  
Surface Modification ◽  
Femtosecond Laser ◽  
Steel Surface ◽  
Laser Intensity ◽  
Periodic Surface ◽  
Laser Surface Modification ◽  
Chemical Surface ◽  
Steel Target ◽  
Pulse Count ◽  
Surface Changes

AbstractA study of ASP 30 steel surface modification with high intensity Ti:sapphire laser, operating at 804 nm wavelength and pulse duration of 60 fs, in vacuum ambient, is presented. ASP 30 steel surface variations were studied at laser intensities of 1014 and 1013 W/cm2. The steel target specific surface changes and phenomena observed are: (i) Creation of craters at 1014 W/cm2 intensity; (ii) formation of periodic surface structures only at the reduced intensity of 1013 W/cm2; (iii) chemical surface changes registered only at higher laser intensity, and (iv) occurrence of plasma in front of the surface, including its emission in X-ray region. It can be concluded from this study that the reported laser intensities can effectively be applied for ASP 30 steel surface modification. Careful choosing of laser intensity and pulse count can lead to precise superficial material removal, for example laser intensity ~1013 W/cm2 and low pulse count can lead to ultra-precise surface processing. Generally, femtosecond laser surface modification of ASP 30 steel is non-contact and very rapid compared with traditional modification methods.

Investigation Into Application of Electrodischarge Machining as Steel Surface Modification Technique

1998 ◽  
Vol 14 (1) ◽  
pp. 55-61 ◽  
Author(s):  
D. I. Pantelis ◽  
N. M. Vaxevanidis ◽  
A. E. Houndri ◽  
P. Dumas ◽  
M. Jeandin
Keyword(s):  
Surface Modification ◽  
Steel Surface ◽  
Electrodischarge Machining ◽  
Modification Technique
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