Solid/Self-Lubrication Mechanisms of an Additively Manufactured Ni-Ti-C Metal Matrix Composite

被引：22

作者：

Mogonye, J. E. ^{[1
]}

Srivastava, A. ^{[2
]}

Gopagoni, S. ^{[1
]}

Banerjee, R. ^{[1
]}

Scharf, T. W. ^{[1
]}

机构：

[1] Univ North Texas, Dept Mat Sci & Engn, Denton, TX 76203 USA

[2] Texas A&M Univ, Dept Mat Sci & Engn, College Stn, TX USA

来源：

TRIBOLOGY LETTERS | 2016年 / 64卷 / 03期

关键词：

Graphite; Self-lubricating composite; Laser processing; Tribofilm; Solid lubrication; Finite element modeling; SLIDING WEAR BEHAVIOR; TRIBOLOGICAL PROPERTIES;

D O I：

10.1007/s11249-016-0770-z

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A Ni-TiC-C metal matrix composite (MMC) has been processed using laser engineered net shaping. This additive manufacturing technique produced a Ni-3Ti-20C (at.%) composition with in situ formation of homogeneously distributed eutectic and primary TiC and graphite precipitates throughout the Ni matrix. The MMC exhibits a low steady-state friction coefficient of similar to 0.1 in dry sliding conditions. Novel insights into solid/self-lubrication mechanisms, with implications to other metal matrix-graphite particle composites, were revealed with focused ion beam serial sectioning inside worn surfaces. It was determined that lowering of the friction coefficient was a result of the formation of a low interfacial shear strength disordered carbon tribofilm that extruded to the surface through refined Ni grain boundaries. This was supported by finite element analysis that showed the evolution of subsurface stress states and precipitate motion during repeated sliding frictional contact.

引用

页数：12

共 28 条

[1] WEAR MECHANISMS IN HYBRID COMPOSITES OF GRAPHITE-20 PCT SIC IN A356 ALUMINUM-ALLOY (AL-7 PCT SI-0.3 PCT MG) [J].

AMES, W ;

ALPAS, AT .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1995, 26 (01) :85-98

[2] Wear and mechanical characteristics of Al 7075/graphite composites [J].

Baradeswaran, A. ;

Perumal, A. Elaya .

COMPOSITES PART B-ENGINEERING, 2014, 56 :472-476

[3] Influence of sliding speed on the dry sliding wear behaviour and the subsurface deformation on hybrid metal matrix composite [J].

Basavarajappa, S. ;

Chandramohan, G. ;

Mahadevan, Arjun ;

Thangavelu, Mukundan ;

Subramanian, R. ;

Gopalakrishnan, P. .

WEAR, 2007, 262 (7-8) :1007-1012

[4] Laser-Deposited In Situ TiC-Reinforced Nickel Matrix Composites: 3D Microstructure and Tribological Properties [J].

Borkar, Tushar ;

Sosa, John ;

Hwang, Jun Yeon ;

Scharf, Thomas W. ;

Tiley, Jaimie ;

Fraser, Hamish ;

Banerjee, Rajarshi .

JOM, 2014, 66 (06) :935-942

[5] Dry-Sliding Tribological Properties of Bronze-Graphite Composites [J].

Cui, Gongjun ;

Niu, Muye ;

Zhu, Shengyu ;

Yang, Jun ;

Bi, Qinling .

TRIBOLOGY LETTERS, 2012, 48 (02) :111-122

[6]

Dassault Systemes Simulia Corp, 2010, AB US MAN VERS 6 10

[7] Interpretation of Raman spectra of disordered and amorphous carbon [J].

Ferrari, AC ;

Robertson, J .

PHYSICAL REVIEW B, 2000, 61 (20) :14095-14107

[8] Microstructural evolution in laser deposited nickel-titanium-carbon in situ metal matrix composites [J].

Gopagoni, S. ;

Hwang, J. Y. ;

Singh, A. R. P. ;

Mensah, B. A. ;

Bunce, N. ;

Tiley, J. ;

Scharf, T. W. ;

Banerjee, R. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2011, 509 (04) :1255-1260

[9]

Guo MLT, 2002, MAT SCI ENG A-STRUCT, V333, P134

[10]

Kainer K.U.:., 2006, METAL MATRIX COMPOSI

← 1 2 3 →