Improvement of fatigue life of electrical discharge machined AISI D2 tool steel by TiN coating

被引：46

作者：

Guu, YH ^{[1
]}

Hocheng, H

机构：

[1] Natl Tsing Hua Univ, Dept Power Mech Engn, Hsinchu 30043, Taiwan

[2] Natl Lien Ho Inst Technol, Dept Mech Engn, Miaoli 360, Taiwan

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2001年 / 318卷 / 1-2期

关键词：

electrical discharge machining; TiN coating; physical vapor deposition; fatigue strength;

D O I：

10.1016/S0921-5093(01)01268-0

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This work presents the effects of titanium nitride (TiN) coating by physical vapor deposition (PVD) on the fatigue life of AISI D2 tool steel, which was electrical discharge machined (EDM) at various machining parameters, such as pulse current and pulse-on duration. Surface hardness, surface roughness, residual stress and fatigue strength were measured. Experimental results indicate that EDM treatment has a detrimental effect on fatigue life. The EDMed specimens further coated by TiN exhibited considerably increased hardness, a better surface finish, and decreased superficial tensile residual stress, or added compressive residual stress on the surface, increasing their fatigue limit. The TiN coating is recommended as an effective method for improving the fatigue life of tool steel that is being electrical discharge machined. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：155 / 162

页数：8

共 28 条

[1]

*AM SOC TEST MAT, 1996, E46696 ASTM, P465

[2] FATIGUE PERFORMANCE AND RESIDUAL-STRESSES IN LASER TREATED 50CRV4 STEEL [J].

BELLO, JM ;

FERNANDEZ, BJ ;

LOPEZ, V ;

RUIZ, J .

JOURNAL OF MATERIALS SCIENCE, 1994, 29 (19) :5213-5218

[3] Fatigue properties of steel coated with TiN by a PVD process [J].

Bomas, H ;

Mayr, P ;

Kurth, B .

MATERIALS AND MANUFACTURING PROCESSES, 1997, 12 (01) :17-27

[4]

BUCH A, 1988, FATIGUE STRENGHT CAL

[5] Influence of plasma nitriding on fatigue strength and fracture of a B-Mn steel [J].

De la Cruz, P ;

Oden, M ;

Ericsson, T .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1998, 242 (1-2) :181-194

[6] EFFECT OF SHOT PEENING ON RESIDUAL-STRESS AND FATIGUE LIFE OF A SPRING STEEL [J].

FARRAHI, GH ;

LEBRUN, JL ;

COURATIN, D .

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 1995, 18 (02) :211-220

[7] Design of experiments to investigate residual stresses and fatigue life improvement by a surface treatment [J].

Freddi, A ;

Veschi, D ;

Bandini, M ;

Giovani, G .

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 1997, 20 (08) :1147-1157

[8] THE DEPENDENCE OF SURFACE DAMAGE-INDUCED BY ELECTRICAL-DISCHARGE MACHINING ON THE FRACTURE STRENGTH OF AL2O3-CR3C2 COMPOSITES [J].

FU, CT ;

LI, AK .

MATERIALS CHEMISTRY AND PHYSICS, 1994, 39 (02) :129-135

[9] FATIGUE-STRENGTH AND FRACTURE MECHANISMS OF CERAMIC-SPRAYED STEEL IN AIR AND A CORROSIVE ENVIRONMENT [J].

HWANG, JU ;

OGAWA, T ;

TOKAJI, K .

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 1994, 17 (07) :839-848

[10]

IIDA K, 1988, B JPN SOC PREC ENG, V22, P195

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