The mechanism investigation of deep cryogenic treatment on high alloy martensitic steel by low frequency internal friction

Cryogenics ◽  
2010 ◽  
Vol 50 (8) ◽  
pp. 433-438 ◽  
Author(s):  
Shaohong Li ◽  
Lihui Deng ◽  
Xiaochun Wu
Keyword(s):  
Internal Friction ◽  
Martensitic Steel ◽  
Cryogenic Treatment ◽  
Low Frequency ◽  
High Alloy ◽  
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.

Influence of deep cryogenic treatment on internal friction behavior in the process of tempering

2011 ◽  
Vol 528 (3) ◽  
pp. 1247-1250 ◽  
Author(s):  
Shaohong Li ◽  
Na Min ◽  
Lihui Deng ◽  
Xiaochun Wu ◽  
Yong’an Min ◽  
...  
Keyword(s):  
Internal Friction ◽  
Cryogenic Treatment ◽  
Friction Behavior ◽  
Deep Cryogenic Treatment

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 treatment on internal friction behaviors of cold work die steel and their experimental explanation by coupling model

2010 ◽  
Vol 527 (29-30) ◽  
pp. 7950-7954 ◽  
Author(s):  
Shaohong Li ◽  
Lihui Deng ◽  
Xiaochun Wu ◽  
Hongbin Wang ◽  
Yong’an Min ◽  
...  
Keyword(s):  
Internal Friction ◽  
Cryogenic Treatment ◽  
Cold Work ◽  
Coupling Model ◽  
Deep Cryogenic Treatment ◽  
Die Steel
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