Effect of laser shock processing and heat treatment sequence on surface layer characteristics of high strength Ni-Co-Mo steel

2017 ◽  
Vol 12 (5/6) ◽  
pp. 427
Author(s):  
Luca Petan ◽  
José Luis Ocaña ◽  
Juan Antonio Porro ◽  
Janez Grum
Keyword(s):  
Heat Treatment ◽  
Surface Layer ◽  
High Strength ◽  
Treatment Sequence ◽  
Laser Shock ◽  
Laser Shock Processing ◽  
Shock Processing

Improvement of surface and mechanical properties of high strength metallic alloys by laser shock processing

2016 ◽  
Vol 3 (1) ◽  
pp. 12-22
Author(s):  
J. L. Ocaña ◽  
J. A. Porro ◽  
M. Díaz ◽  
L. Ruiz de Lara ◽  
A. García-Beltrán ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Strength ◽  
Metallic Alloys ◽  
Laser Shock ◽  
Laser Shock Processing ◽  
Shock Processing

Influence of Heat Treatment and Laser Shock Processing on Impact Toughness of 2Cr13 Martensite Stainless Steel

2012 ◽  
Vol 39 (8) ◽  
pp. 0803002 ◽  
Author(s):  
冯爱新 Feng Aixing ◽  
周鹏程 Zhou Pengcheng ◽  
聂贵锋 Nie Guifeng ◽  
王俊伟 Wang Junwei ◽  
韩振春 Han Zhenchun ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Stainless Steel ◽  
Impact Toughness ◽  
Laser Shock ◽  
Laser Shock Processing ◽  
Shock Processing

Experimental Study on Dislocation Configuration and Grain Refinement of 690 High Strength Steel Treated by Laser Shock Processing

2020 ◽  
Vol 49 (4) ◽  
pp. 414004-414004
Author(s):  
曹宇鹏 Yu-peng CAO ◽  
杨聪 Cong YANG ◽  
施卫东 Wei-dong SHI ◽  
花国然 Guo-ran HUA ◽  
李彬 Bin LI ◽  
...  
Keyword(s):  
Experimental Study ◽  
Grain Refinement ◽  
High Strength Steel ◽  
High Strength ◽  
Laser Shock ◽  
Laser Shock Processing ◽  
Dislocation Configuration ◽  
Shock Processing

Strengthen Experimental Study of High Strength Steel 40CrNi2Si2MoVA Based on Laser Shock Processing

2013 ◽  
Vol 774-776 ◽  
pp. 1122-1126
Author(s):  
Yong Hua Wu
Keyword(s):  
Residual Stress ◽  
High Strength Steel ◽  
Compressive Residual Stress ◽  
High Strength ◽  
High Fracture Toughness ◽  
Laser Shock ◽  
High Fracture ◽  
Laser Shock Processing ◽  
Testing Specimen ◽  
Shock Processing

40CrNi2Si2MoVA high-strength steel is widely used in aircraft industry because of its unique combination of ultrahigh strength with high fracture toughness. However, 40CrNi2Si2MoVA is vulnerable to both corrosion fatigue and stress corrosion cracking failures with catastrophic consequences for aircraft. The high strength steel 40CrNi2Si2MoVA is enhanced and strengthen by usage of laser shock processing (LSP) with a optimal shock processing parameters, and after a series of comparion experiment in different overlap rate,the surface compressive residual stress in the testing specimen is measured and compared, and the experiment results show that the specimen surface has-962MPa compressive residual stress. Finally, the enhanced effect of compressive residual stress in surface of specimen by laser shock is discussed. The results of laser shock processing has a guiding significance to the engineering applications of high strength steel.

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