Three-body abrasion of surface engineered die steel at elevated temperatures

Venkatesan, K.; Subramanian, C.; Summerville, E.

doi:10.1016/s0043-1648(96)07442-x

Cited by 39 publications

(22 citation statements)

References 15 publications

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“…The observation of Stott and Jordan [11] indicated wear protective layer formation at 600 8C and failure of generation of such layer in some cases at lower temperature. Other work discussed similar features on elevated temperature wear of metal matrix composites [12,13] or abrasive wear of metallic materials at elevated temperature [14,15]. However, in all these wear studies no effort was made to understand the influence of different mating material on elevated temperature wear behaviour.…”

Section: Introductionmentioning

confidence: 99%

Effect of mating surface on the high temperature wear of 253 MA alloy

Roy

Pauschitz

Wernisch

et al. 2004

Materials & Corrosion

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The wear behaviour of metallic material is influenced by the friction force, which in turn, is governed by the hardness and oxidation kinetics of the mating surface. In view of this, present investigation is undertaken to find the influence of mating surface on the high temperature wear of 253 MA alloy. This alloy is developed for high temperature application. In this work 253 MA alloy is made to slide against two different types of counter face material, namely 100Cr6 steel and PM 1000 alloy, at five different temperatures. 100Cr6 steel gets soften with increase of temperature whereas PM 1000 alloy retains its strength even at high temperature. The friction coefficient and the thickness loss of 253 MA alloy is measured and compared against both variety of mating surfaces as function of temperatures. The morphology of the worn surfaces and the transverse section of the worn surfaces are examined under scanning electron microscope (SEM) to identify the material removal mechanisms. The results showed that the friction coefficient of test material against PM 1000 alloy is around 40% higher than the friction coefficient against 100Cr6 steel. The transverse section of the worn surface showed presence of a transfer layer, mechanically mixed layer and composite layer, which govern the wear behaviour particularly at elevated temperature. The chemical characteristics of these layers are dependent on the test temperature and the counter face material.

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Section: Introductionmentioning

confidence: 99%

Effect of mating surface on the high temperature wear of 253 MA alloy

Roy

Pauschitz

Wernisch

et al. 2004

Materials & Corrosion

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“…According to his findings these fragments stick rigidly to the surface and act like hard phases and protect the working surfaces against abrasion, compensating for the effect of core (matrix) softening at high temperatures. In addition to abrasive particles, oxide scale was also observed on the surface by Venkatesan et al 9) Seidel and Luig 10) have attributed die damage to abrasive wear. Decrease in die life due to microstructural changes and cracking has also been observed.…”

Section: Introductionmentioning

confidence: 83%

“…11) Surface modification techniques are being considered in the hot forging industry for improving the life of the dies. 7,9) Published literature on the performance and wear mechanisms of surface modified dies, especially under plant conditions, is limited. The wear processes observed in the simulated wear testing of engineered surfaces of nitriding, nitro-carburising, boriding and stellite-6 over a temperature range of 25-950°C, on a die steel, included layer formation having a laminated structure consisting of abrasives and base metal chips and oxide scale.…”

Section: Introductionmentioning

confidence: 99%

“…The wear processes observed in the simulated wear testing of engineered surfaces of nitriding, nitro-carburising, boriding and stellite-6 over a temperature range of 25-950°C, on a die steel, included layer formation having a laminated structure consisting of abrasives and base metal chips and oxide scale. 9) Salt bath nitrided dies are reported to give improved but inconsistent service Studies have been made to compare the effect of salt bath nitro-carburising and plasma nitriding treatments, on the working life of hot forging dies made of H11 grade of tool steel. Working life of the surface modified dies, that are used for the production of bearing races by high speed closed die forging, was evaluated in the real plant operation.…”

Section: Introductionmentioning

confidence: 99%

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Damage Mechanisms in Salt Bath Nitro-carburised and Plasma Nitrided Hot Forging Dies of H11 Tool Steel.

Devi

2002

ISIJ International

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“…Hot forging is one of the oldest metal-forming process used in the production of critical parts in various industries (Venkatesan, 1997). Hot forging die is a kind of technological equipment which transfers power and makes forgings take place plastic deformation.…”

Section: Introductionmentioning

confidence: 99%