Microstructure and surface wear resistance in rapidly quenched Fe-Cr-B alloy spray coatings

被引：9

作者：

Jin, H. W. ^{[1
]}

Park, C. G. ^{[1
]}

Kim, M. C. ^{[2
]}

机构：

[1] Pohang Univ Sci Technol, Ctr Adv Aerosp Mat, Pohang 790784, Kyungbuk, South Korea

[2] Res Inst Ind Sci & Technol, Pohang 790600, South Korea

来源：

CURRENT APPLIED PHYSICS | 2001年 / 1卷 / 06期

关键词：

Wear resistance; Low friction; Thermal spraying; Solid-state amorphization;

D O I：

10.1016/S1567-1739(01)00060-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Fe-Cr-B alloy coatings were fabricated by thermal spraying and investigated in this research as to its wear-resistance and friction properties. The Fe-Cr-B spray-coated layers exhibited much higher wear resistance and significantly low friction coefficient in comparison with those of Fe-Cr base tool steel. The present paper reports that the presence of amorphous surface film formed during the sliding wear will be the main cause of noticeably improved friction properties and wear resistance. It was also observed that the Fe-Cr solid solution phase with supersaturated B and Si was the phase contributing to the crystalline-to-amorphous transition induced by sliding wear. These results imply the possible application of the present alloy coatings to the lubricant-free sliding systems in which the use of organic lubricants is limited or prohibited. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：473 / 477

页数：5

共 10 条

[1] ON THE ELASTIC MISMATCH IN THE ORDER-DISORDER TRANSFORMATION AND SOLID-STATE AMORPHIZATION OF INTERMETALLIC COMPOUNDS .2. CRITERIA FOR THE SOLID AMORPHOUS TRANSFORMATION IN INTERMETALLIC COMPOUNDS [J].

BEKE, DL ;

BAKKER, H ;

LOEFF, PI .

ACTA METALLURGICA ET MATERIALIA, 1991, 39 (06) :1267-1273

[2]

Egami T., 1984, J NONCRYST SOL, V64, P277

[3] Microstructure and amorphization induced by frictional work in Fe-Cr-B alloy thermal spray coatings [J].

Jin, HW ;

Park, CG ;

Kim, MC .

SURFACE & COATINGS TECHNOLOGY, 1999, 113 (1-2) :103-112

[4] Microstructure and wear-resistance of Fe-Cr-B base metamorphic alloys [J].

Jin, HW ;

Rhyim, YM ;

Park, CG ;

Kim, MC .

METALS AND MATERIALS-KOREA, 1997, 3 (01) :60-64

[5] What role for contact spots and dislocations in friction and wear? [J].

KuhlmannWilsdorf, D .

WEAR, 1996, 200 (1-2) :8-29

[6]

Liou S.H., 1986, PHYS REV B, V31, P8238

[7]

Ludema K.C., 1996, FRICTION WEAR LUBRIC, P73

[8]

Schwarz R.B., 1983, PHYS REV LETT, V42, P63

[9]

Scruggs D.M., 1991, P 4 NAT THERM SPRAY, P147

[10]

Scruggs DM, 1988, United States patent, Patent No. [US4,725,512, 4725512]

← 1 →