Investigations on the nanocrystallization of 40Cr using ultrasonic surface rolling processing

被引：267

作者：

Ting, Wang ^{[1
]}

Dongpo, Wang ^{[1
]}

Gang, Liu ^{[2
]}

Baoming, Gong ^{[1
]}

Ningxia, Song ^{[1
]}

机构：

[1] Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China

[2] Northeastern Univ, Sch Met & Mat, Shenyang 110004, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2008年 / 255卷 / 05期

基金：

美国国家科学基金会;

关键词：

Ultrasonic surface rolling processing; 40Cr; Microstructure; Nano-structured layer; Mechanical properties;

D O I：

10.1016/j.apsusc.2008.06.034

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ultrasonic surface rolling processing (USRP) was applied on quenched and tempered 40Cr. Microstructure observations of USRP specimen surface indicate that the processing can both get nano-structured layers, with grain size of 3-7 nm, and reduce the surface roughness to 0.05 mu m. Life of the rolling processing tip is about 800 times longer than the. fixed one, which makes the processing practical and economical. Tests of mechanical properties show that microhardness of USRP specimen surface was increased by 52.6%; residual compressive stress can reach -846 MPa. It has been determined by contrast wear test that USRP can reduce friction coefficient and improve the wear-resistant property. (C) 2008 Elsevier B. V. All rights reserved.

引用

页码：1824 / 1829

页数：6

共 31 条

[1]

BELYAKOVA MN, 2001, METAL PHYS ADV TECHN, V27, P629

[2]

Cao Fengguo., 2005, ULTRASONIC PROCESSIN

[3]

CAO MS, 2001, MAT COMPOSITION PREP

[4] Comparison between shot peening and surface nanocrystallization and hardening processes [J].

Dai, K. ;

Shaw, L. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 463 (1-2) :46-53

[5]

FAN X, 1981, METALLOGRAPHY XRAY

[6]

HABIG KH, 1987, WEAR HARDNESS MAT

[7] Microstructures and dislocation configurations in nanostructured Cu processed by repetitive corrugation and straightening [J].

Huang, JY ;

Zhu, YT ;

Jiang, H ;

Lowe, TC .

ACTA MATERIALIA, 2001, 49 (09) :1497-1505

[8] THE HALL-PETCH RELATIONSHIP IN NANOCRYSTALLINE IRON PRODUCED BY BALL MILLING [J].

JANG, JSC ;

KOCH, CC .

SCRIPTA METALLURGICA ET MATERIALIA, 1990, 24 (08) :1599-1604

[9]

KE L, 1999, MAT SCI TECHNOL, V15, P193

[10] Low carbon steel with nanostructured surface layer induced by high-energy shot peening [J].

Liu, G ;

Wang, SC ;

Lou, XF ;

Lu, J ;

Lu, K .

SCRIPTA MATERIALIA, 2001, 44 (8-9) :1791-1795

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