Features for formation of structure and properties of highstrength steel 30KhGSN2A in production of liquid dampers

2020 ◽  
pp. 223-230
Author(s):  
V.S. Muratov ◽  
N.S. Yakimov
Keyword(s):  
Heat Treatment ◽  
Surface Treatment ◽  
High Strength Steel ◽  
High Strength ◽  
Structure And Properties ◽  
Reliable Operation ◽  
Premature Failure ◽  
Liquid Dampers ◽  
Steel Properties

The causes of premature failure of liquid dampers made of high-strength steel 30KhGSN2A and used on vehicles are studied. Recommendations are developed on adjusting the modes of fi nishing heat treatment of barrels and surface treatment of rods, providing improved microstructure and the required level of steel properties, as well as reliable operation of the dampers.

Formation of Structure and Properties of 30HGSN2A Steel at Technological Stages of Manufacture of Heavy-Loaded Parts

2021 ◽  
Vol 316 ◽  
pp. 324-332
Author(s):  
V.S. Muratov ◽  
N.S. Yakimov
Keyword(s):  
Heat Treatment ◽  
Nitrogen Content ◽  
High Strength ◽  
Final Heat Treatment ◽  
Structure And Properties ◽  
Tempering Temperature ◽  
Premature Failure ◽  
Treatment Conditions ◽  
Chrome Coating ◽  
Vacuum Heating

The cases of premature failure of the barrel of liquid damper, made of complex alloyed high-strength 30HGSN2A steel, are analyzed. The options failure and the causes of their occurrence are established. Fatigue failure of the barrels during an operation is due to the failure of the chrome coating of the rod and the appearance of scorings on the surface of the barrel. Cases of failure of the barrels during official tests are associated with the reduced hardenability and an increased tendency to decarburize steel in the bottom of the barrel, due to the increased nitrogen content here (due to segregation). The influence treatment conditions on the structure and properties of steel are investigated. Modes of dehydration and final heat treatment of the products to eliminate their premature failures are recommended. The proposed conditions, in particular, include increasing the dehydration temperature to 200-230 oС, reducing the exposure time at the hardening temperature and reducing the tempering temperature, using vacuum heating.

CONFLEX 720

Alloy Digest ◽  
1964 ◽  
Vol 13 (7) ◽  
Keyword(s):  
Heat Treatment ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Surface Treatment ◽  
Nickel Alloy ◽  
High Strength ◽  
Heat Treating ◽  
Age Hardening ◽  
Copper Manganese ◽  
Hardening Heat Treatment

Abstract CONFLEX 720 is a copper-manganese-nickel alloy that responds to an age-hardening heat treatment for high strength and corrosion resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as heat treating, machining, joining, and surface treatment. Filing Code: Cu-143. Producer or source: Metals & Controls Inc..

Influence of low-temperature tempering on structure and properties of welded joints of high-strength steel 30Kh2N2MF

2020 ◽  
Vol 2020 (6) ◽  
pp. 20-26
Author(s):  
O.A. Gaivoronskyi ◽  
◽  
V.D. Poznyakov ◽  
O.M. Berdnikova ◽  
T.O. Alekseenko ◽  
...  
Keyword(s):  
Low Temperature ◽  
Welded Joints ◽  
High Strength Steel ◽  
High Strength ◽  
Structure And Properties

Structure and Properties of High Power Laser Welding of High Strength Steel B450LAD for Vehicles

2008 ◽  
Vol 35 (12) ◽  
pp. 2047-2051 ◽  
Author(s):  
李亚玲 Li Yaling ◽  
黄坚 Huang Jian ◽  
高志国 Gao Zhiguo ◽  
吴毅雄 Wu Yixiong ◽  
阎启 Yan Qi
Keyword(s):  
Laser Welding ◽  
High Power ◽  
High Strength Steel ◽  
High Strength ◽  
Structure And Properties ◽  
High Power Laser ◽  
Power Laser

Structure and properties of a low carbon Cu bearing high strength steel

2005 ◽  
Vol 396 (1-2) ◽  
pp. 320-332 ◽  
Author(s):  
A. Ghosh ◽  
B. Mishra ◽  
S. Das ◽  
S. Chatterjee
Keyword(s):  
High Strength Steel ◽  
High Strength ◽  
Structure And Properties ◽  
Low Carbon
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