Oxidative wear behaviour of laser clad High Speed Steel thick deposits: Influence of sliding speed, carbide type and morphology

The wear behaviour of powder metallurgy high-speed steel (PM-HSS) milling inserts is investigated experimentally. Cutting inserts with different cutting edge radii tested at various feed rates and cutting speeds were examined. The radii have been obtained either by microsandblasting or by honing. The initiation and progress of the tool wear was analysed with scanning electron microscopy (SEM) of the cutting edges. The experimental results exhibit quantitatively the effect of tool radius on the performance of milling inserts. A radius on the cutting edge prevents fast and unpredictable wear, and can lead to a great improvement of the tool life.

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A comparative study of the wear behaviour of sintered and laser surface melted AISI M42 high speed steel diluted with iron

Wear ◽

10.1016/j.wear.2005.06.006 ◽

2006 ◽

Vol 260 (9-10) ◽

pp. 949-956 ◽

Cited By ~ 33

Author(s):

R. Colaço ◽

E. Gordo ◽

E.M. Ruiz-Navas ◽

M. Otasevic ◽

R. Vilar

Keyword(s):

Comparative Study ◽

High Speed ◽

High Speed Steel ◽

Laser Surface ◽

Wear Behaviour

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Wear Behaviour of Cryogenic Treated M2 Tool Steel under Dry Sliding Condition

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.798.395 ◽

2015 ◽

Vol 798 ◽

pp. 395-401 ◽

Cited By ~ 1

Author(s):

S.A. Sonawane ◽

V.K. Tripathi ◽

S.D. Ambekar

Keyword(s):

Wear Resistance ◽

Tool Steel ◽

High Speed ◽

Cryogenic Treatment ◽

High Speed Steel ◽

Wear Behaviour ◽

Wear Loss ◽

Dry Sliding ◽

Deep Cryogenic Treatment ◽

Steel Material

The technique of cryogenic treatment of cutting tools is an inexpensive permanent treatment process that improves the physical and mechanical properties of materials such as metals, plastics and composites. It promotes the transformation of the retained austenite into martensite at cryogenic temperatures and also facilitates the formation of fine carbides in the martensite, thereby improving the wear resistance.This paper compares the wear behaviour of hardened and triple tempered AISI M2 high-speed steel and the same steel that was hardened and triple tempered in conjunction with a deep-cryogenic treatment at 88K for 16 and 24 hours. Test materials were subjected to wear tests on pin-on-disc machine in dry sliding condition. Equations are developed for predicting the wear resistance of M2 tool steel material. The hardness data wear loss and microstructure throw light on the improvement in wear resistance property of the M2 tool steel.It is demonstrated that the properties of the cryogenically treated samples are superior to those of conventionally treated. 24 hours cryogenically treated hardened and triple tempered M2 tool steel shows excellent wear resistance properties over 16 hours cryo-treated M2 and conventionally treated M2 tool steel material.

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Sliding Wear Resistance of Tempered T15m High Speed Steel

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.756-759.141 ◽

2013 ◽

Vol 756-759 ◽

pp. 141-145

Author(s):

Qing Yi Huang ◽

De Gui Zhu ◽

Chao Li ◽

Pei Qiu Sun

Keyword(s):

High Speed ◽

Sliding Wear ◽

Testing Machine ◽

High Speed Steel ◽

Wear Testing ◽

Dry Sliding Wear ◽

Oxidative Wear ◽

Fatigue Wear ◽

Wear And Tear ◽

Worn Surface

The dry sliding wear tests were carried out on T15m high speed steel with the M-2000 type wear testing machine, and studied the influence of wear performance due to the different loads and speeds on T15m, SEM was employed to analysis the worn surface morphology to discuss the mechanism of wear and tear. The results demonstrated that the mechanisms as well as the wear rate of T15m high speed steel were under different loads and speeds were different. Under the load of 100N, it is oxidative wear, while abrasive wear is the main reason for 150N and 200N. However, under 250N it is converted to serious oxidative wear and fatigue wear.

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