An investigation into the effect of various surface treatments on fatigue life of a tool steel

Farrahi, G.H.; Ghadbeigi, Hassan

doi:10.1016/j.jmatprotec.2006.01.014

Cited by 68 publications

(40 citation statements)

References 10 publications

(11 reference statements)

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“…G. H. Farrahi et al [8] studied effect of various surface treatments on AISI D3 cold work tool steel and conveyed 14% improvement in fatigue life by using shot peening. Y. Harada et al [9] did research on micro shot peening of high speed tool steel and claimed significant increase in fatigue performance.…”

Section: Introductionmentioning

confidence: 99%

Influence of Shot Peening on DIN 1.2714 Hot Work Tool Steel

Bhavar¹,

Patil²,

Kattire³

et al. 2017

MSCE

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Shot peening is one of the most popular surface enhancement technique used to improve fatigue performance of different materials. This paper focuses on to study the effect of different shot peening parameters on micro-structural and mechanical properties of DIN 1.2714 tool steel specimens. Shot peening treatments were carried out by varying shot size and peening intensity. X-ray stress analysis, micro-hardness testing and micro-structural analysis were performed to characterize these specimens. In addition, pin on disk wear testing was executed to recognize wear behavior of this shot peened tool steels. It was observed that along with compressive residual stress generation, shot peening also induces work hardening effect and modifies surface structure which are responsible for significant improvement in this tool steel.

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Section: Introductionmentioning

confidence: 99%

Influence of Shot Peening on DIN 1.2714 Hot Work Tool Steel

Bhavar¹,

Patil²,

Kattire³

et al. 2017

MSCE

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“…Therefore, a polishing process was necessary to reduce the roughness. [12][13][14] Shot peening treatments can simultaneously form a condensed and more uniform structure on the surface, which improves surface defects of materials, as shown in Fig. 6(c).…”

Section: Resultsmentioning

confidence: 99%

Effect of Shot Peening Treatment on Forging Die Life

Chang¹,

Lee

Tang

2008

Mater. Trans.

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The aim of this paper was to study the effects of die life through shot peening treatments on AISI H13 steel, and tests were performed to study the influential parameters of the shot peening process. To evaluate the effects of microstructure and the die life of AISI H13 steel after steel shot peening processes, we conducted and evaluated roughness tests, micro hardness and wear tests, and SEM microstructure inspections. The shot peening process was conducted under a pneumatic peening machine. Experimental results showed that 0.3 mm steel shots and 30 minutes at 451 kPa of shot peening treatment was optimum for AISI H13 steel for improving wear resistance and the die life of steel. It enhanced the surface hardness to HV 561 and extended ability of the limit wear resistance for AISI H13 steel. Dislocation microstructure emerged on the steel surface by shot peening. In particular, this technology has been successfully applied to forging die, and is able to improve and extend the die life of steel 2 to 3 times.

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“…Several techniques such as carburizing, nitriding, and shot peening have been used for improving fatigue strength. However, although crack initiation may be suppressed via surface treatments based on these methods, [2][3][4][5] they are ineffective for materials with pre-existing cracks. Therefore, a method that can heal the damage in materials is necessary to improve the reliability and durability of mechanical components.…”

Section: Introductionmentioning

confidence: 99%

Delaying Effect of High-Density Electric Current on Fatigue Crack Growth in A6061-T6 Aluminum Alloy

Jung

Morita

et al. 2016

Mater. Trans.

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This study examined the delaying effect of fatigue crack growth induced by high-density electric current on A6061-T6 aluminum alloy. To investigate the effect, fatigue tests were conducted using specimens with and without electric current treatment. The fatigue life of the treated specimens increased signi cantly compared with untreated specimens. After the tests, the fracture surfaces were examined using scanning electron microscope. In the specimens in which electric current was applied, local melting on the crack surface was observed via fractography. To clarify the effects of electric current treatment on fatigue crack propagation, early crack growth was investigated using the plastic replication method. A delaying effect was particularly noticeable in the small-crack region. Results show that this delaying effect can be attributed to crack shielding caused by local melting on the crack surface, which signi es that the fatigue life is improved by the application of high-density electric current.

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An investigation into the effect of various surface treatments on fatigue life of a tool steel

Cited by 68 publications

References 10 publications

Influence of Shot Peening on DIN 1.2714 Hot Work Tool Steel

Influence of Shot Peening on DIN 1.2714 Hot Work Tool Steel

Effect of Shot Peening Treatment on Forging Die Life

Delaying Effect of High-Density Electric Current on Fatigue Crack Growth in A6061-T6 Aluminum Alloy

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