Comment on “Experimental verification of segregation of carbon and precipitation of carbides due to deep cryogenic treatment for tool steel by internal friction method” by Li et al. [Mater. Sci. Eng. A 575 (2013) 51–60]

2014 ◽  
Vol 613 ◽  
pp. 1-2 ◽  
Author(s):  
J.J. Hoyos ◽  
J.M. Vélez ◽  
A.A. Ghilarducci
Keyword(s):  
Internal Friction ◽  
Tool Steel ◽  
Experimental Verification ◽  
Cryogenic Treatment ◽  
Deep Cryogenic Treatment ◽  
Friction Method

Influence of deep cryogenic treatment on microstructure and evaluation by internal friction of a tool steel

Cryogenics ◽  
2010 ◽  
Vol 50 (11-12) ◽  
pp. 754-758 ◽  
Author(s):  
Shaohong Li ◽  
Lihui Deng ◽  
Xiaochun Wu ◽  
Yong’an Min ◽  
Hongbin Wang
Keyword(s):  
Internal Friction ◽  
Tool Steel ◽  
Cryogenic Treatment ◽  
Deep Cryogenic Treatment

Effect of Deep Cryogenic Process on the Microstructure and Hardness and Wear Resistance of High Carbon Tool Steel

2018 ◽  
Vol 934 ◽  
pp. 100-104
Author(s):  
Yuan Ching Lin ◽  
Ji Wei Gong
Keyword(s):  
Wear Resistance ◽  
Tool Steel ◽  
Cryogenic Treatment ◽  
Wear Test ◽  
High Carbon ◽  
Deep Cryogenic Treatment ◽  
Treatment Conditions ◽  
The Matrix ◽  
Cryogenic Process ◽  
The Moment

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.

Low-temperature martensitic transformation and deep cryogenic treatment of a tool steel

2010 ◽  
Vol 527 (26) ◽  
pp. 7027-7039 ◽  
Author(s):  
A.I. Tyshchenko ◽  
W. Theisen ◽  
A. Oppenkowski ◽  
S. Siebert ◽  
O.N. Razumov ◽  
...  
Keyword(s):  
Martensitic Transformation ◽  
Low Temperature ◽  
Tool Steel ◽  
Cryogenic Treatment ◽  
Deep Cryogenic Treatment

Fatigue Scatter of 1.2542 Tool Steel after Deep Cryogenic Treatment

2015 ◽  
Vol 2 (4-5) ◽  
pp. 1210-1215 ◽  
Author(s):  
Keyvan Seyedi Niaki ◽  
Seyed Ebrahim Vahdat
Keyword(s):  
Tool Steel ◽  
Cryogenic Treatment ◽  
Deep Cryogenic Treatment

Internal Friction Study of the Influence of Deep Cryogenic Treatment on the Microstructure of a Bainitic Steel

2012 ◽  
Vol 184 ◽  
pp. 239-244
Author(s):  
Na Min ◽  
Tian Yu Ji ◽  
Li Juan Zhu ◽  
Xiao Chun Wu ◽  
Hong Bin Wang
Keyword(s):  
Internal Friction ◽  
Cryogenic Temperature ◽  
Cryogenic Treatment ◽  
Cryogenic Cooling ◽  
Bainitic Steel ◽  
Deep Cryogenic Treatment ◽  
Soaking Time ◽  
Transmission Electron ◽  
Dislocation Pinning ◽  
Friction Study

The influence of deep cryogenic treatment (DCT) on the microstructure of a bainitic steel is investigated by means of internal friction and transmission electron microscopy (TEM). Two relaxation peaks (Pc1and Pc2) are observed during cooling and one relaxation peak (Ph) during heating from 100 to 320K. Peak Pc1may be related to dislocation pinning. Peak Phis attributed to dislocation-carbon atoms interaction. The decreasing of peak Phafter cycles deep cryogenic cooling indicates that soaking time under the deep cryogenic temperature is not contributed to the precipitation of carbides, while the cycles cryogenic treatment lead to more fine carbides precipitation.

Sign in / Sign up

Export Citation Format

Share Document