Effect of surface hardening in zone of stress concentration on the tendency of carbon steel to brittle fracture

1988 ◽  
Vol 30 (9) ◽  
pp. 702-705
Author(s):  
V. A. Gur'ev ◽  
E. I. Tesker
Keyword(s):  
Stress Concentration ◽  
Carbon Steel ◽  
Brittle Fracture ◽  
Surface Hardening ◽  
Effect Of Surface

On effect of surface hardening on impact and abrasive wear resistance of Hadfi eld steel

2020 ◽  
pp. 252-255
Author(s):  
V.I. Bolobov ◽  
V.S. Bochkov ◽  
E.V. Akhmerov ◽  
V.A. Plashchinsky ◽  
E.A. Krivokrisenko E.A.
Keyword(s):  
Plastic Deformation ◽  
Wear Resistance ◽  
Abrasive Wear ◽  
Work Hardening ◽  
Surface Hardening ◽  
Cold Work ◽  
Abrasive Wear Resistance ◽  
Hadfield Steel ◽  
Mining Equipment ◽  
Effect Of Surface

On the example of Hadfield steel, as the most common material of fast-wearing parts of mining equipment, the effect of surface hardening by plastic deformation on their impact and abrasive wear resistance is considered. Wear test is conducted on magnetic ironstone as typical representative of abrasive and hard rock. As result of wear of initial samples with hardness of ∼200 HB and samples pre-hardened with different intensities to the hardness of 300, 337 and 368 HB, it is found that during the initial testing period, the initial samples pass the “self-cold-work hardening” stage with increase in hardness to ∼250 HB, which remains virtually unchanged during further tests; the hardness of the pre-hardened samples does not change significantly throughout the tests. It is established that the rate of impact-abrasive wear of pre-hardened samples is significantly (up to 1.4 times) lower than the original ones that are not subjected to plastic deformation, and decreases with increasing degree of cold-work hardening. Preliminary surface hardening by plastic deformation can serve as effective way to increase the service life of fast-wearing working parts of mining equipment.

Effect of surface nanocrystallization induced by fast multiple rotation rolling on mechanical properties of a low carbon steel

2012 ◽  
Vol 35 ◽  
pp. 754-759 ◽  
Author(s):  
Pengfei Chui ◽  
Kangning Sun ◽  
Chang Sun ◽  
Chengge Wu ◽  
Hongyou Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Steel ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Surface Nanocrystallization ◽  
Effect Of Surface

Cryogenic leakage risk analysis for FLNG and use of brittle crack arresting material as a risk mitigation measure

2015 ◽  
Author(s):  
Akio Usami ◽  
Naohiko Kishimoto ◽  
Hiroki Kusumoto ◽  
Fujio Kaneko ◽  
Takehiro Inoue
Keyword(s):  
Carbon Steel ◽  
Risk Analysis ◽  
Brittle Fracture ◽  
Risk Mitigation ◽  
Brittle Crack ◽  
Cryogenic Fluid ◽  
Mitigation Measure ◽  
Flammable Gas ◽  
Confined Environment

Leakage of cryogenic fluid can bring diverse consequences within confined environment like FLNG. In particular, leakage from pressurized refrigerant system is expected to form cryogenic pool, which could initiate brittle fracture of the structure as well as violent evaporation of flammable gas. The authors put the series of different leakage scenarios under light and quantitatively analyzed the potential consequences in an attempt to provide overall pictures of this hazard yet to have been made clear so far. Further, use of brittle fracture arresting steel – a new strain of carbon steel produced through special TMCP technology – was explored on its potential to mitigate the risk.

scholarly journals Development of Large Surface Hardening Method for Carbon Steel with High Power CO2 Laser (1st Report)

1997 ◽  
Vol 63 (8) ◽  
pp. 1138-1142
Author(s):  
Masashi OIKAWA ◽  
Hiroyuki YAMAMOTO ◽  
Katsuhiro MINAMIDA ◽  
Hiromichi KAWASUMI
Keyword(s):  
Carbon Steel ◽  
Co2 Laser ◽  
High Power ◽  
Surface Hardening

Brittle Fracture Validation Through Crystallographic Deformation for the Characterization of Cleavage in Carbon Steel

2007 ◽  
Vol 7 (15) ◽  
pp. 2206-2210 ◽  
Author(s):  
Yeo Kiam Beng ◽  
Mohd Harimi . ◽  
Lim Eng Har .
Keyword(s):  
Carbon Steel ◽  
Brittle Fracture
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