Microstructure control of medium carbon steel joints by low-temperature linear friction welding

2019 ◽  
Vol 25 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Ryosuke Kuroiwa ◽  
Huihong Liu ◽  
Yasuhiro Aoki ◽  
Sungook Yoon ◽  
Hidetoshi Fujii ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Low Temperature ◽  
Friction Welding ◽  
Medium Carbon Steel ◽  
Linear Friction Welding ◽  
Microstructure Control ◽  
Medium Carbon ◽  
Linear Friction ◽  
Steel Joints

scholarly journals Linear Friction Stir Welding of Medium Carbon Steel at Low Temperature

2019 ◽  
Vol 59 (10) ◽  
pp. 1853-1859 ◽  
Author(s):  
Yasuhiro Aoki ◽  
Ryosuke Kuroiwa ◽  
Hidetoshi Fujii ◽  
Gen Murayama ◽  
Masanori Yasuyama
Keyword(s):  
Friction Stir Welding ◽  
Carbon Steel ◽  
Low Temperature ◽  
Medium Carbon Steel ◽  
Medium Carbon ◽  
Friction Stir ◽  
Linear Friction

scholarly journals Linear Friction Stir Welding of Medium Carbon Steel at Low Temperature

2017 ◽  
Vol 103 (7) ◽  
pp. 422-428 ◽  
Author(s):  
Yasuhiro Aoki ◽  
Ryosuke Kuroiwa ◽  
Hidetoshi Fujii ◽  
Gen Murayama ◽  
Masanori Yasuyama
Keyword(s):  
Friction Stir Welding ◽  
Carbon Steel ◽  
Low Temperature ◽  
Medium Carbon Steel ◽  
Medium Carbon ◽  
Friction Stir ◽  
Linear Friction

Neutron diffraction study of the kinetics of low-temperature martensite decomposition in medium-carbon steel

2021 ◽  
Vol 6 ◽  
pp. 83-87
Author(s):  
A. A. Alekseev ◽  
◽  
S. S. Goncharov ◽  
Keyword(s):  
Solid Solution ◽  
Carbon Steel ◽  
Low Temperature ◽  
Neutron Diffraction ◽  
Supersaturated Solid Solution ◽  
Medium Carbon Steel ◽  
Tempering Temperature ◽  
Medium Carbon ◽  
Temperature Decomposition ◽  
Two Stages

It is found that the low-temperature decomposition of martensite in quenched medium-carbon steel occurs in two stages. In the first stage, the rate of decomposition is higher than that in the subsequent stage. Application of the neutron diffraction method allows the identification of two stages of transformation in the first stage of martensite decomposition. It is shown that the first stage is associated predominantly with carbon segregation at dislocations, and the second, with the outdiffusion of carbon from the supersaturated solid solution with the formation of dispersed particles of metastable carbides. It is shown that the change in the concentration of carbon and, accordingly, the degree of tetragonal lattice of martensite at aging and low tempering occurs to a certain limit, independent of the cooling rate during quenching and tempering temperature. This is due to the establishment of a relative equilibrium between a supersaturated solid solution and fine particles of metastable iron carbide. It is found that the determining process, which leads to a change in the microhardness the low-temperature decomposition, is the out diffusion of carbon from the supersaturated solid solution.

Low temperature nitriding of medium carbon steel

Vacuum ◽  
2006 ◽  
Vol 80 (8) ◽  
pp. 855-859 ◽  
Author(s):  
Jisen Wang ◽  
Guosong Zhang ◽  
Jinquan Sun ◽  
Ying Bao ◽  
Lichen Zhuang ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Low Temperature ◽  
Medium Carbon Steel ◽  
Medium Carbon

3D Numerical Simulation of Linear Friction Welding of 45# Carbon Steel

2012 ◽  
Vol 476-478 ◽  
pp. 701-704
Author(s):  
Ze Min Liu ◽  
Zheng Hua Guo ◽  
Gang Yao Zhao ◽  
Shu Zhang ◽  
Ji Luan Pan
Keyword(s):  
Numerical Simulation ◽  
Carbon Steel ◽  
Friction Welding ◽  
Flow Behavior ◽  
Metal Flow ◽  
Welding Process ◽  
Contact Boundary ◽  
Linear Friction Welding ◽  
Welding Interface ◽  
Linear Friction

A 3D finite-elements model of 45# carbon steel of linear friction welding is built with the dynamic explicit code ABAQUS/explicit based on the solution of several key techniques, such as contact boundary condition treating, material properties definition, meshing technology, etc. Then the reliability of the model is validated by comparison with experiments in the literature. Furthermore, numerical simulation and analysis of the linear friction welding process of 45# steel have been carried out by using the model. The temperature field of workpiece, the temperature change of center point of welding interface and the metal flow behavior of welding interface are showed in results.

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