Evolution of Tribological Properties of Reactor-Grade NiCr-B Coating

被引：12

作者：

Das, C. R. ^{[2
]}

Kumar, N. ^{[1
]}

Dash, S. ^{[1
]}

Chandramohan, P. ^{[3
]}

Srinivasan, M. P. ^{[3
]}

Albert, S. K. ^{[2
]}

Tyagi, A. K. ^{[1
]}

Bhaduri, A. K. ^{[2
]}

Raj, Baldev

机构：

[1] Indira Gandhi Ctr Atom Res, Surface & Nanosci Div, Kalpakkam 603102, Tamil Nadu, India

[2] Indira Gandhi Ctr Atom Res, Mat Technol Div, Kalpakkam 603102, Tamil Nadu, India

[3] Indira Gandhi Ctr Atom Res, Water Chem Div, Kalpakkam 603102, Tamil Nadu, India

来源：

TRIBOLOGY LETTERS | 2011年 / 44卷 / 02期

关键词：

NiCr-B; Tribological properties; Oxide scales; Fatigue and fretting wear; WEAR BEHAVIOR; OXIDATION; FRICTION; COBALT; IRON;

D O I：

10.1007/s11249-011-9841-3

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The tribological properties of reactor-grade NiCr-B hardfaced coating were studied at a constant load and sliding velocity. The objective of the present article is to investigate the changes in coefficient of friction that accompanies morphological and phase changes occurring in wear scars. Such changes result from the sliding with a spherical steel ball. The transition from the low to high coefficient of friction at higher sliding distance is attributed to severe cracking as well as fretting wear-induced deformation of surface oxide scales. Increased value of coefficient of friction arises from protracted sliding over longer distances continued to deform and detachment of weakly adhered oxides like Fe2O3 and Cr2O3. Such scales are tribochemically formed on the wear scars and contribute to alteration in the coefficient of friction. The evolution of oxide phases in wear scars is found to be one of the main mechanisms for dissipation of frictional force.

引用

页码：229 / 235

页数：7

共 22 条

[1] Eutectic modification in a low-chromium white cast iron by a mixture of titanium, rare earths, and bismuth: Part II. Effect on the wear behavior [J].

Bedolla-Jacuinde, A ;

Aguilar, SL ;

Maldonado, C .

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2005, 14 (03) :301-306

[2]

Bowden F.P., 1954, The friction and lubrication of solids, Part I

[3]

Bowden FP, 1964, The friction and lubrication of solids: part II

[4] Oxide film formation in magnetized sliding steel/steel contact - analysis of the contact stress field and film failure mode [J].

Chin, KJ ;

Zaidi, H ;

Mathia, T .

WEAR, 2005, 259 (1-6) :477-481

[5] Tribological behavior of NiCr-base blended and nanostructured composite APS coatings by rig test [J].

Cho, Jinhwan ;

Xiong, Yuming ;

Kim, Juneseob ;

Lee, Changhee ;

Hwang, SoonYoung .

WEAR, 2008, 265 (11-12) :1565-1571

[6] Effects of dilution on microstructure and wear behaviour of NiCr hardface deposits [J].

Das, C. R. ;

Albert, S. K. ;

Bhaduri, A. K. ;

Nithya, R. .

MATERIALS SCIENCE AND TECHNOLOGY, 2007, 23 (07) :771-779

[7] Characterisation of nickel based hardfacing deposits on austenitic stainless steel [J].

Das, CR ;

Albert, SK ;

Bhaduri, AK ;

Sudha, C ;

Terrance, ALE .

SURFACE ENGINEERING, 2005, 21 (04) :290-296

[8] Adhesive wear behaviour of cast aluminium-silicon alloys: Overview [J].

Dwivedi, D. K. .

MATERIALS & DESIGN, 2010, 31 (05) :2517-2531

[9]

Dwivedi DK, 2001, T INDIAN I METALS, V54, P247

[10] Expressing wear rate in sliding contacts based on dissipated energy [J].

Huq, MZ ;

Celis, JP .

WEAR, 2002, 252 (5-6) :375-383

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