Laser alloying surface of spheroidal graphite iron and plain carbon steel improve the wear resistance of many industrial components. But the distribution of residual stress in the laser alloying zone and its adjacent area, that may affect the wear performance and the sensitivity of fatigue and fracture, has not been investigated systematically. In this paper the stresses distribution on the spheroidal graphite iron surface of the laser alloying zone with FeCSiB powder has been measured by X-ray diffraction technique. The results of XRD and optical microscope quantitative analysis show that the main phases of the laser alloying zone are Fe3C and α-Fe (plus martensite) with approximate the same volume fraction. The residual stress state of the two phases has been analyzed. It is found that laser alloying zone (LAZ) is subjected to high tensile stresses while the area surround LAZ is subjected to compressive stresses.
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3rd Pacific International Conference on Laser Materials Processing, Micro, Nano and Ultrafast Fabrication
April 16–18, 2008
Beijing, People's Republic of China
ISBN:
978-0-912035-89-5
PROCEEDINGS PAPER
Residual stress distribution in laser alloying zone with FeCSiB powder
Zhengyang Li;
Zhengyang Li
1
Key Laboratory for Advanced Materials Processing Technology, Department of Mechanical Engineering, Tsinghua University
, Beijing, 100084, P. R. China
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Haiyan Zhao;
Haiyan Zhao
1
Key Laboratory for Advanced Materials Processing Technology, Department of Mechanical Engineering, Tsinghua University
, Beijing, 100084, P. R. China
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Minlin Zhong;
Minlin Zhong
1
Key Laboratory for Advanced Materials Processing Technology, Department of Mechanical Engineering, Tsinghua University
, Beijing, 100084, P. R. China
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Bin Zhang;
Bin Zhang
1
Key Laboratory for Advanced Materials Processing Technology, Department of Mechanical Engineering, Tsinghua University
, Beijing, 100084, P. R. China
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Yu Gu;
Yu Gu
1
Key Laboratory for Advanced Materials Processing Technology, Department of Mechanical Engineering, Tsinghua University
, Beijing, 100084, P. R. China
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Qiulin Wu;
Qiulin Wu
2
Beijing Beiye Functional Materials Co. Ltd
., Beijing, 100085, P. R. China
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Hongjun Zhang;
Hongjun Zhang
1
Key Laboratory for Advanced Materials Processing Technology, Department of Mechanical Engineering, Tsinghua University
, Beijing, 100084, P. R. China
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Wenjin Liu
Wenjin Liu
1
Key Laboratory for Advanced Materials Processing Technology, Department of Mechanical Engineering, Tsinghua University
, Beijing, 100084, P. R. China
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Published Online:
April 01 2008
Citation
Zhengyang Li, Haiyan Zhao, Minlin Zhong, Bin Zhang, Yu Gu, Qiulin Wu, Hongjun Zhang, Wenjin Liu; April 16–18, 2008. "Residual stress distribution in laser alloying zone with FeCSiB powder." Proceedings of the 3rd Pacific International Conference on Laser Materials Processing, Micro, Nano and Ultrafast Fabrication. PICALO 2008: 3rd Pacific International Conference on Laser Materials Processing, Micro, Nano and Ultrafast Fabrication. Beijing, People's Republic of China. (pp. pp. 482-487). ASME. https://doi.org/10.2351/1.5057062
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