Effect of surface mechanical attrition treatment on corrosion resistance of commercial pure titanium

Features of the anode electrolytic plasma processing of commercial pure titanium and its alloys in aqueous solutions of ammonium chloride and ammonia additives are studied. It is identified that structure of modified layer contains an external TiO2 or TiO layer with micropores of up to 100 nm and a diffusion sub-layer after nitriding in the solution with the ammonia addition. Some increase in the surface microhardness is found. The plasma electrolytic treatment of titanium makes it possible to enhance its corrosion resistance by short-term (5 min) saturation with nitrogen at 750 °C in an electrolyte containing 5% ammonia and 10% ammonium chloride. The oxide coating formed during the anodic treatment has a positive effect on the corrosion resistance of titanium and results in reduce of the corrosion rate by two orders under continuous tests. Saturation of titanium samples with nitrogen leads to an increase in their strength properties after corrosion tests with a slight decrease in ductility. An additional advantage of this coating is to reduce of leaching of alloying elements from samples in corrosive environments.

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Effect of Surface Mechanical Attrition Treatment (SMAT) On the Electrochemical Behavior and Oxide Film Composition of Alloy 600

ECS Meeting Abstracts ◽

10.1149/ma2013-01/15/714 ◽

2013 ◽

Keyword(s):

Oxide Film ◽

Electrochemical Behavior ◽

Surface Mechanical Attrition Treatment ◽

Alloy 600 ◽

Film Composition ◽

Mechanical Attrition ◽

Effect Of Surface

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Effect of surface mechanical attrition treatment on stainless steel corrosion

Surface Engineering ◽

10.1080/02670844.2020.1790157 ◽

2020 ◽

pp. 1-10

Author(s):

Minrui Ran ◽

Ci Zhang ◽

Lei Wen ◽

Hongyu Zhou ◽

Wenyue Zheng

Keyword(s):

Stainless Steel ◽

Steel Corrosion ◽

Surface Mechanical Attrition Treatment ◽

Mechanical Attrition ◽

Effect Of Surface

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Effect of surface mechanical attrition treatment on corrosion behavior of 316 stainless steel

Journal of Iron and Steel Research International ◽

10.1016/s1006-706x(09)60030-3 ◽

2009 ◽

Vol 16 (2) ◽

pp. 68-72 ◽

Cited By ~ 58

Author(s):

Yun-wei Hao ◽

Bo Deng ◽

Cheng Zhong ◽

Yi-ming Jiang ◽

Jin Li

Keyword(s):

Stainless Steel ◽

Corrosion Behavior ◽

Surface Mechanical Attrition Treatment ◽

316 Stainless Steel ◽

Mechanical Attrition ◽

Effect Of Surface

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Ultrasonic Surface Mechanical Attrition of Commercially Pure Ti to Induce Nanocrystalline Surface Layer

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.442.152 ◽

2010 ◽

Vol 442 ◽

pp. 152-157 ◽

Cited By ~ 2

Author(s):

M. Mansoor ◽

J. Lu

Keyword(s):

Pure Titanium ◽

Nanocrystalline Structure ◽

Surface Mechanical Attrition Treatment ◽

X Ray Diffraction ◽

Annealed Condition ◽

X Ray ◽

Commercially Pure ◽

Transmission Electron ◽

Mechanical Attrition ◽

Xrd And Tem

In the domain of incremental nanotechnology, surface mechanical attrition treatment is a technique which can transform superficial structure of a material to nanocrystalline without changing the chemical composition. This study is a part of the development and implementation of the technique by using ultrasonic vibrations. The material used is pure titanium in rolled and annealed condition. The nanocrystalline structure is characterized using X-ray diffraction (XRD), and transmission electron microscopy (TEM). The measured grain size is in the order of 5~60 nm. A correlation in the results of XRD and TEM is also discussed.

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