Deep Cryogenic Treatment of AISI M2 Tool Steel and Optimisation of Its Wear Characteristics Using Taguchi‘s Approach

2018 ◽  
Vol 43 (9) ◽  
pp. 4917-4929 ◽  
Author(s):  
Satish Kumar ◽  
Mohan Nagraj ◽  
Arunkumar Bongale ◽  
Nitin Khedkar
2018 ◽  
Vol 934 ◽  
pp. 100-104
Author(s):  
Yuan Ching Lin ◽  
Ji Wei Gong

In this investigation, the effects of different heat treatment conditions on the mechanical properties of high carbon tool steel (SK2) were explored. Experimental results indicated that immediately doing deep cryogenic treatment can effectively reduce retained austenite after quenching. The moment of the holding time for the cryogenic treatment was extended can promote the fine carbides precipitated, and thus increased its hardness. The results of X-ray diffraction showed that the carbides in the matrix included Fe3C and Fe7C3.The wear test results demonstrated that the specimen with Q-T1hr-C24hr-T1hr treatment has the highest wear resistance than the others, which was caused by the effect of several tempering processes to improve toughness of the matrix and to precipitate considerable quantities of the fine carbides.


2010 ◽  
Vol 527 (26) ◽  
pp. 7027-7039 ◽  
Author(s):  
A.I. Tyshchenko ◽  
W. Theisen ◽  
A. Oppenkowski ◽  
S. Siebert ◽  
O.N. Razumov ◽  
...  

2015 ◽  
Vol 2 (4-5) ◽  
pp. 1210-1215 ◽  
Author(s):  
Keyvan Seyedi Niaki ◽  
Seyed Ebrahim Vahdat

2019 ◽  
Vol 90 (5) ◽  
pp. 1800523 ◽  
Author(s):  
Kaikai Wang ◽  
Kaixuan Gu ◽  
R. D. K. Misra ◽  
Liubiao Chen ◽  
Xuanzhi Liu ◽  
...  

Metals ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 1038 ◽  
Author(s):  
Pello Jimbert ◽  
Maider Iturrondobeitia ◽  
Julen Ibarretxe ◽  
Roberto Fernandez-Martinez

The effects of deep cryogenic treatment (DCT) on the wear behavior of different tool steels have been widely reported in the scientific literature with uneven results. Some tool steels show a significant improvement in their wear resistance when they have been cryogenically treated while others exhibit no relevant amelioration or even a reduction in their wear resistance. In this study, the influence of DCT was investigated for a grade that has been barely studied in the scientific literature, the AISI A8 air-hardening medium-alloy cold work tool steel. Several aspects were analyzed in the present work: the wear resistance of the alloy, the internal residual stress, and finally the secondary carbide precipitation in terms of lengths and occupied area and its distribution into the microstructure. The results revealed a reduction in the wear rate of about 14% when the AISI A8 was cryogenically treated before tempering. The number of carbides that precipitated into the microstructure was 6% higher for the cryogenically treated samples, increasing from 0.68% to 0.73% of the total area they covered. Furthermore, the distribution of the carbides into the microstructure was more homogenous for the cryogenically treated samples.


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