Restoration of impact properties of internal crack healing in a low carbon steel

2017 ◽  
Vol 682 ◽  
pp. 433-440 ◽  
Author(s):  
Ruishan Xin ◽  
Qingxian Ma ◽  
Dongdong Guo ◽  
Weiqi Li
Keyword(s):  
Carbon Steel ◽  
Low Carbon Steel ◽  
Internal Crack ◽  
Low Carbon ◽  
Crack Healing ◽  
Impact Properties

Effect of Heat Treatment on Microstructure and Hardness of Internal Crack Healing in a Low Carbon Steel

2017 ◽  
Vol 730 ◽  
pp. 3-7 ◽  
Author(s):  
Rui Shan Xin ◽  
Qing Xian Ma ◽  
Wei Qi Li
Keyword(s):  
Heat Treatment ◽  
Carbon Steel ◽  
Testing Machine ◽  
Low Carbon Steel ◽  
Internal Crack ◽  
Low Carbon ◽  
Crack Healing ◽  
Material Source ◽  
The Matrix ◽  
Healing Temperature

The effect of heat treatment on microstructure and hardness of internal crack healing in a low carbon steel was studied. The internal cracks were produced into the samples by a drilling and compression method. The microstructure of crack healing zone was examined using optical microscopy (OM) and scanning electron microscopy (SEM). The hardness of crack healing zone was measured using a Vickers micro-hardness testing machine (FM-800). The results show that healing temperature plays a more significant role in internal crack healing than holding time. Compared as-quenched samples with as-normalized samples under the same healing parameters, it is found that cooling speed is also an important factor for internal crack healing. The migration and enrichment of iron atoms provide material source for recrystallization and grain growth of crack healing zone. The existence of micro-voids leads to the hardness of the ferrite in the crack healing zone lower than that in the matrix.

scholarly journals Study on Mechanical Properties of crack Healing of low carbon Steel based on cyclic Phase Transformation Heat treatment

2021 ◽  
Vol 2133 (1) ◽  
pp. 012046
Author(s):  
Lei Chu
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Tensile Strength ◽  
Carbon Steel ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Crack Healing ◽  
Properties Of Materials ◽  
Metal Materials ◽  
Cyclic Phase

Abstract With the rapid development of materials, metal materials are used less and less, but at this stage, metal materials are still widely used, and iron and steel materials are the most widely used. Cracks often appear in the process of metal material processing and use, and these cracks will have a certain impact on the use of metal materials. The existence of microcracks will affect the mechanical properties of materials to some extent, but in most cases, the mechanical properties of materials will be greatly reduced, and in serious cases, metal materials will break directly in the process of use or processing. The crack healing process needed after the emergence of cracks can effectively change this situation, but so far, the research on metal crack healing is still not perfect. In this paper, taking the internal crack of low carbon steel as the object, the recovery of mechanical properties of low carbon steel by cyclic phase transformation heat treatment was studied. The results show that with the increase of the healing area, the microhardness of the area after crack healing also increases, and the tensile strength of the specimen also increases after the healing. When the healing area is similar, increasing the healing time and temperature will result in grain coarsening, resulting in the decrease of microhardness and tensile strength in the crack healing zone.

scholarly journals Crack Healing in a Low-Carbon Steel Under Hot Plastic Deformation

2013 ◽  
Vol 45 (2) ◽  
pp. 1001-1009 ◽  
Author(s):  
Hailiang Yu ◽  
Xianghua Liu ◽  
Xinwen Li ◽  
Ajit Godbole
Keyword(s):  
Plastic Deformation ◽  
Carbon Steel ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Crack Healing ◽  
Hot Plastic Deformation

Delamination Effect on Impact Properties of Ultrafine-Grained Low-Carbon Steel Processed by Warm Caliber Rolling

2009 ◽  
Vol 41 (2) ◽  
pp. 341-355 ◽  
Author(s):  
Tadanobu Inoue ◽  
Fuxing Yin ◽  
Yuuji Kimura ◽  
Kaneaki Tsuzaki ◽  
Shojiro Ochiai
Keyword(s):  
Carbon Steel ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Impact Properties ◽  
Ultrafine Grained

1104 Impact Properties of Low-Carbon Steel with Ultrafme Elongated Grain Structure

2010 ◽  
Vol 2010.23 (0) ◽  
pp. 125-126
Author(s):  
Tadanobu INOUE ◽  
Yuuji KIMURA ◽  
Fuxing YIN ◽  
Kaneaki TSUZAKI ◽  
Shojiro OCHIAI
Keyword(s):  
Carbon Steel ◽  
Low Carbon Steel ◽  
Grain Structure ◽  
Low Carbon ◽  
Impact Properties

Development of trimming technology for hot rolled ultra-low carbon steel

1993 ◽  
Vol 90 (7-8) ◽  
pp. 917-922
Author(s):  
Y. Matsuda ◽  
M. Nishino ◽  
J. Ikeda
Keyword(s):  
Carbon Steel ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Ultra Low Carbon Steel ◽  
Hot Rolled
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