Study on laser powder bed fusion of nickel-base alloy of G-surface structure: scanning strategy, properties and compression properties

Abstract Aiming at laser powder bed fusion of GH3536 nickel base alloy, the effects of different scanning strategies on microstructure, porosity and mechanical properties were explored. In the aspect of microstructure and micro hardness of the sample, three scanning strategies had little difference;...

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Autores principales:	Bo Qian, Hongri Fan, Jianrui Zhang, Tengfei Li, Jiangtao Xi, Zhijun Qiu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a582adf5894b4f1d9d2445d91093be0e
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spelling	oai:doaj.org-article:a582adf5894b4f1d9d2445d91093be0e2021-12-02T11:45:02ZStudy on laser powder bed fusion of nickel-base alloy of G-surface structure: scanning strategy, properties and compression properties10.1038/s41598-021-86213-22045-2322https://doaj.org/article/a582adf5894b4f1d9d2445d91093be0e2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-86213-2https://doaj.org/toc/2045-2322Abstract Aiming at laser powder bed fusion of GH3536 nickel base alloy, the effects of different scanning strategies on microstructure, porosity and mechanical properties were explored. In the aspect of microstructure and micro hardness of the sample, three scanning strategies had little difference; in the aspect of macro mechanical properties of the sample, the slope subarea scanning was better than the helix and island scanning. On this basis, the slope subarea scanning was selected as the optimal scanning strategy to form the G-surface structure, and the compression performance of G-surface was studied. The results showed that: (1) the compression performance of G-surface structure was smaller than that of solid structure, The compression strength of G-surface can only reach about 20% of solid structure: the average strength value of G-surface is 220 MPa, solid structure is 1.1 GMpa; while G-surface structure had a smooth compression curve, which indicated the good energy absorption characteristics; (2) with the increase of wall thickness, the mechanical performance of G-surface structure was also enhanced, while the energy absorption capacity was constantly reduced; (3) with the same wall thickness, the compression performance of sample in building direction (BD) is higher than that in horizontal direction (HD).Bo QianHongri FanJianrui ZhangTengfei LiJiangtao XiZhijun QiuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-17 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Bo Qian Hongri Fan Jianrui Zhang Tengfei Li Jiangtao Xi Zhijun Qiu Study on laser powder bed fusion of nickel-base alloy of G-surface structure: scanning strategy, properties and compression properties
description	Abstract Aiming at laser powder bed fusion of GH3536 nickel base alloy, the effects of different scanning strategies on microstructure, porosity and mechanical properties were explored. In the aspect of microstructure and micro hardness of the sample, three scanning strategies had little difference; in the aspect of macro mechanical properties of the sample, the slope subarea scanning was better than the helix and island scanning. On this basis, the slope subarea scanning was selected as the optimal scanning strategy to form the G-surface structure, and the compression performance of G-surface was studied. The results showed that: (1) the compression performance of G-surface structure was smaller than that of solid structure, The compression strength of G-surface can only reach about 20% of solid structure: the average strength value of G-surface is 220 MPa, solid structure is 1.1 GMpa; while G-surface structure had a smooth compression curve, which indicated the good energy absorption characteristics; (2) with the increase of wall thickness, the mechanical performance of G-surface structure was also enhanced, while the energy absorption capacity was constantly reduced; (3) with the same wall thickness, the compression performance of sample in building direction (BD) is higher than that in horizontal direction (HD).
format	article
author	Bo Qian Hongri Fan Jianrui Zhang Tengfei Li Jiangtao Xi Zhijun Qiu
author_facet	Bo Qian Hongri Fan Jianrui Zhang Tengfei Li Jiangtao Xi Zhijun Qiu
author_sort	Bo Qian
title	Study on laser powder bed fusion of nickel-base alloy of G-surface structure: scanning strategy, properties and compression properties
title_short	Study on laser powder bed fusion of nickel-base alloy of G-surface structure: scanning strategy, properties and compression properties
title_full	Study on laser powder bed fusion of nickel-base alloy of G-surface structure: scanning strategy, properties and compression properties
title_fullStr	Study on laser powder bed fusion of nickel-base alloy of G-surface structure: scanning strategy, properties and compression properties
title_full_unstemmed	Study on laser powder bed fusion of nickel-base alloy of G-surface structure: scanning strategy, properties and compression properties
title_sort	study on laser powder bed fusion of nickel-base alloy of g-surface structure: scanning strategy, properties and compression properties
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/a582adf5894b4f1d9d2445d91093be0e
work_keys_str_mv	AT boqian studyonlaserpowderbedfusionofnickelbasealloyofgsurfacestructurescanningstrategypropertiesandcompressionproperties AT hongrifan studyonlaserpowderbedfusionofnickelbasealloyofgsurfacestructurescanningstrategypropertiesandcompressionproperties AT jianruizhang studyonlaserpowderbedfusionofnickelbasealloyofgsurfacestructurescanningstrategypropertiesandcompressionproperties AT tengfeili studyonlaserpowderbedfusionofnickelbasealloyofgsurfacestructurescanningstrategypropertiesandcompressionproperties AT jiangtaoxi studyonlaserpowderbedfusionofnickelbasealloyofgsurfacestructurescanningstrategypropertiesandcompressionproperties AT zhijunqiu studyonlaserpowderbedfusionofnickelbasealloyofgsurfacestructurescanningstrategypropertiesandcompressionproperties
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Study on laser powder bed fusion of nickel-base alloy of G-surface structure: scanning strategy, properties and compression properties

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