Effects of previous deformation on the yield point of austenitic steel in low-temperature loading

1983 ◽  
Vol 15 (8) ◽  
pp. 1089-1093 ◽  
Author(s):  
V. N. Rudenko ◽  
�. S. Istomina ◽  
B. I. Koval'chuk ◽  
S. B. Nizhnik
Keyword(s):  
Low Temperature ◽  
Austenitic Steel ◽  
Yield Point

scholarly journals Sliding wear of medium-carbon bainitic/martensitic/austenitic steel treated by short-term low-temperature austempering

Wear ◽  
2021 ◽  
pp. 203732
Author(s):  
Quanshun Luo ◽  
Jianbin Li ◽  
Qintai Yan ◽  
Wenbo Li ◽  
Yubi Gao ◽  
...  
Keyword(s):  
Low Temperature ◽  
Austenitic Steel ◽  
Sliding Wear ◽  
Short Term ◽  
Medium Carbon

Surface modification of austenitic steel by low-temperature plasma

Vacuum ◽  
2005 ◽  
Vol 78 (2-4) ◽  
pp. 389-394 ◽  
Author(s):  
J. Baranowska ◽  
E. Kusior ◽  
V. Amigo ◽  
K. Szczeciński
Keyword(s):  
Surface Modification ◽  
Low Temperature ◽  
Austenitic Steel ◽  
Low Temperature Plasma ◽  
Temperature Plasma

Rheology of Brine-Based Fuzzy-Ball Drilling Fluids in Deepwater Drilling

2019 ◽  
Author(s):  
Zhaochuan Li ◽  
Lihui Zheng ◽  
Panfeng Wei ◽  
Xiaojuan Dai ◽  
Weian Huang
Keyword(s):  
Low Temperature ◽  
Yield Point ◽  
Apparent Viscosity ◽  
High Salinity ◽  
Flow Behavior ◽  
Plastic Viscosity ◽  
Rheological Parameters ◽  
Working Fluid ◽  
Drilling Fluids ◽  
Deepwater Drilling

Abstract In deepwater drilling, the rheology of traditional drilling fluid is uncontrollable since the fluid usually mixes with brine and encounters low temperature. A solution may be to use the newly designed brine-based fuzzy-ball drilling fluids (BFDFs) since these have a well-adapted rheology under high salinity and low temperature condition. This has the potential to make drilling safer and more efficient. In this experiment, the rheological properties of BFDFs under test conditions were characterized with a rheometer by varying salinity (2 to 20 mass%) and temperature (4 to 80 °C). The rheological parameters considered are apparent viscosity (AV), plastic viscosity (PV), yield point (YP), and θ6 reading. To characterize the magnitudes of changes of the rheological parameters and their low temperature dependence, their ratios at 4 and 25 °C, and 4 and 80 °C were calculated. The results showed that the apparent viscosity (AV), the plastic viscosity (PV), the yield point (YP), and θ6 reading of BFDFs increased slightly with the decrease of salinity and temperature. The ratios of rheological parameters at 4 and 25 °C were close to unity, while the ratios at 4 and 80 °C were about two. The flow behavior of BFDFs under high salinity and low temperature condition was stable. Therefore, brine could be used as the base fluid for BFDFs. Theoretically, the flow behavior of BFDFs under low temperature condition seems to follow the Herschel-Bulkley model. Practically, the tests indicated that the BFDFs possess a strong tolerance to sandstone cuttings and Cabentonite, an excellent inhibitive property to shaly cuttings, weak corrosive characteristics against N80 casing steel, excellent lubricity properties, and remarkable biodegradability. In summary, the empirical results showed that the newly designed fuzzy-ball working fluid can use brine instead of fresh water as based fluid and maintain remarkable properties under high salinity and low temperature condition. Properties of BFDFs could basically satisfy the requirement of deepwater drilling work.

A study on fractography in the low-temperature brittle fracture of an 18Cr-18Mn-0.7N austenitic steel

1998 ◽  
Vol 29 (3) ◽  
pp. 791-798 ◽  
Author(s):  
Shi Cheng Liu ◽  
T. Hashida ◽  
H. Takahashi ◽  
H. Kuwano ◽  
Y. Hamaguchi
Keyword(s):  
Low Temperature ◽  
Brittle Fracture ◽  
Austenitic Steel

Low temperature physical properties of a high Mn austenitic steel JK2LB

Cryogenics ◽  
2009 ◽  
Vol 49 (3-4) ◽  
pp. 133-137 ◽  
Author(s):  
J. Lu ◽  
R.P. Walsh ◽  
K. Han
Keyword(s):  
Low Temperature ◽  
Physical Properties ◽  
Austenitic Steel

Nitrogen-induced yield point phenomenon in an austenitic steel

2020 ◽  
Vol 774 ◽  
pp. 138897
Author(s):  
J.-H. Shin ◽  
J.-S. Jeong ◽  
J. Lee ◽  
S.-D. Kim ◽  
J.H. Jang ◽  
...  
Keyword(s):  
Austenitic Steel ◽  
Yield Point ◽  
Yield Point Phenomenon
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