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| Effects of austenizing time on wear behavior of D6 tool steel after deep cryogenic treatment |
| A.Akhbarizadeh M A Golozar A Shafeie M Kholghy |
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Abstract The effects of the prior austenite grain size in deep cryogenic treatment on the hardness, the structural change and the wear resistance of D6 tool steel were investigated. The wear resistance of the cryogenically treated samples was determined using the pin-on-disk wear machine. The microstructural characteristics and phases present in heat-treated samples were determined bye use of SEM and XRD techniques. The results showed that the retained austenite is completely transformed to martensite during the cryogenic treatment. Besides, there is an optimum grain size in which the maximum wear resistance and hardness are obtained.
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Received: 17 September 2008
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2009, Vol. 16 
