Experimental Study on FGH95 Superalloy Turbine Disk Joint Material by Oblique Laser Shock Processing

The FGH95 superalloy used for turbine disk manufacturing was strengthened by the oblique laser shock processing (OLSP). The laser energy, beam diameter, and number of impacts were selected as the test factors, and the three-factor three-level oblique laser shock processing orthogonal test was carrie...

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Autores principales:	Chaohui Lin, Longwei Yu, Jingling Zeng, Hebin Wu, Xiaojun Guo, Jianxin Liu, Yongkang Zhang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	oblique laser shock processing FGH95 superalloy turbine disk joint material orthogonal test variance analysis range analysis Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/f3497ed232334e5e96955ebdcd3bd1eb
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id	oai:doaj.org-article:f3497ed232334e5e96955ebdcd3bd1eb
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spelling	oai:doaj.org-article:f3497ed232334e5e96955ebdcd3bd1eb2021-11-25T18:21:48ZExperimental Study on FGH95 Superalloy Turbine Disk Joint Material by Oblique Laser Shock Processing10.3390/met111117702075-4701https://doaj.org/article/f3497ed232334e5e96955ebdcd3bd1eb2021-11-01T00:00:00Zhttps://www.mdpi.com/2075-4701/11/11/1770https://doaj.org/toc/2075-4701The FGH95 superalloy used for turbine disk manufacturing was strengthened by the oblique laser shock processing (OLSP). The laser energy, beam diameter, and number of impacts were selected as the test factors, and the three-factor three-level oblique laser shock processing orthogonal test was carried out. Based on the analysis of variance and range of the surface residual stress, microhardness, roughness, tensile strength, and yield strength of FGH95 superalloy after LSP, the factor level combination of relative best comprehensive performance was obtained. The results showed that, within the 10% confidence level, the order of influencing factors with significant difference is: laser energy > number of impacts > beam diameter. Compared with the unimpacted sample, the microhardness of the material surface was increased by about 25% after OLSP. With the increase of laser energy, the dimple distribution of the sample was more uniform, smaller in size, and shallower in depth. However, the thickness of the affected layer was very low, and there was no significant effect on the tensile properties. In general, and under the test conditions selected in this study, the combination of 8 Joule laser energy, 3 mm beam diameter, and three impacts can be selected to obtain the best comprehensive performance. The results of this paper provide a reference for the OLSP of the FGH95 superalloy turbine disk and other aero engine parts.Chaohui LinLongwei YuJingling ZengHebin WuXiaojun GuoJianxin LiuYongkang ZhangMDPI AGarticleoblique laser shock processingFGH95 superalloyturbine disk joint materialorthogonal testvariance analysisrange analysisMining engineering. MetallurgyTN1-997ENMetals, Vol 11, Iss 1770, p 1770 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	oblique laser shock processing FGH95 superalloy turbine disk joint material orthogonal test variance analysis range analysis Mining engineering. Metallurgy TN1-997
spellingShingle	oblique laser shock processing FGH95 superalloy turbine disk joint material orthogonal test variance analysis range analysis Mining engineering. Metallurgy TN1-997 Chaohui Lin Longwei Yu Jingling Zeng Hebin Wu Xiaojun Guo Jianxin Liu Yongkang Zhang Experimental Study on FGH95 Superalloy Turbine Disk Joint Material by Oblique Laser Shock Processing
description	The FGH95 superalloy used for turbine disk manufacturing was strengthened by the oblique laser shock processing (OLSP). The laser energy, beam diameter, and number of impacts were selected as the test factors, and the three-factor three-level oblique laser shock processing orthogonal test was carried out. Based on the analysis of variance and range of the surface residual stress, microhardness, roughness, tensile strength, and yield strength of FGH95 superalloy after LSP, the factor level combination of relative best comprehensive performance was obtained. The results showed that, within the 10% confidence level, the order of influencing factors with significant difference is: laser energy > number of impacts > beam diameter. Compared with the unimpacted sample, the microhardness of the material surface was increased by about 25% after OLSP. With the increase of laser energy, the dimple distribution of the sample was more uniform, smaller in size, and shallower in depth. However, the thickness of the affected layer was very low, and there was no significant effect on the tensile properties. In general, and under the test conditions selected in this study, the combination of 8 Joule laser energy, 3 mm beam diameter, and three impacts can be selected to obtain the best comprehensive performance. The results of this paper provide a reference for the OLSP of the FGH95 superalloy turbine disk and other aero engine parts.
format	article
author	Chaohui Lin Longwei Yu Jingling Zeng Hebin Wu Xiaojun Guo Jianxin Liu Yongkang Zhang
author_facet	Chaohui Lin Longwei Yu Jingling Zeng Hebin Wu Xiaojun Guo Jianxin Liu Yongkang Zhang
author_sort	Chaohui Lin
title	Experimental Study on FGH95 Superalloy Turbine Disk Joint Material by Oblique Laser Shock Processing
title_short	Experimental Study on FGH95 Superalloy Turbine Disk Joint Material by Oblique Laser Shock Processing
title_full	Experimental Study on FGH95 Superalloy Turbine Disk Joint Material by Oblique Laser Shock Processing
title_fullStr	Experimental Study on FGH95 Superalloy Turbine Disk Joint Material by Oblique Laser Shock Processing
title_full_unstemmed	Experimental Study on FGH95 Superalloy Turbine Disk Joint Material by Oblique Laser Shock Processing
title_sort	experimental study on fgh95 superalloy turbine disk joint material by oblique laser shock processing
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f3497ed232334e5e96955ebdcd3bd1eb
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_version_	1718411294942429184

Experimental Study on FGH95 Superalloy Turbine Disk Joint Material by Oblique Laser Shock Processing

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