An Innovative Approach of Parameter Loading Path Design for Grain Refinement and Its Application in Ni80A Superalloy

In order to obtain the desired mechanical properties of products, an innovative method of loading parameter designs for acquiring the desired grain refinement is proposed, and it has been applied in the compression process of Ni80A superalloy. The deformation mechanism maps derived from processing m...

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Autores principales:	Guo-Zheng Quan, Yan-Ze Yu, Xue Sheng, Kun Yang, Wei Xiong
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	Ni80A superalloy microstructural evolution mechanisms grain refinement parameter loading path design Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/1d2e1a15dde140e9a4713e8ee5b6d029
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spelling	oai:doaj.org-article:1d2e1a15dde140e9a4713e8ee5b6d0292021-11-11T18:12:03ZAn Innovative Approach of Parameter Loading Path Design for Grain Refinement and Its Application in Ni80A Superalloy10.3390/ma142167031996-1944https://doaj.org/article/1d2e1a15dde140e9a4713e8ee5b6d0292021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6703https://doaj.org/toc/1996-1944In order to obtain the desired mechanical properties of products, an innovative method of loading parameter designs for acquiring the desired grain refinement is proposed, and it has been applied in the compression process of Ni80A superalloy. The deformation mechanism maps derived from processing maps based on the Dynamic Materials Model (DMM) theory were constructed, since the critical indicator values corresponding to dynamic recrystallization (DRX) and dynamic recovery (DRV) mechanisms were determined. The processing-parameter domains with DRX mechanisms were separated from the deformation mechanism map, while such domains were chaotic and difficult to apply in innovative parameter loading path design. The speed-loading path derived from strain rate-loading path in a compression process was pursued. The grain refinement domains are discretized into a finite series of sub-domains with clear processing parameters, and the optimal strain rate of each sub-domain is determined by step-by-step finite element simulation. A 3D response surface of the innovative optimal loading path of strain rate was fitted by interpolating methods. Finally, the isothermal compression experiments for Ni80A superalloy were conducted, and the microstructure observations indicated that the desired grain refinement was achieved. This innovative method of parameter loading path design contributes to the microstructure adjustment of the alloys with DRX mechanism.Guo-Zheng QuanYan-Ze YuXue ShengKun YangWei XiongMDPI AGarticleNi80A superalloymicrostructural evolution mechanismsgrain refinementparameter loading path designTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6703, p 6703 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Ni80A superalloy microstructural evolution mechanisms grain refinement parameter loading path design Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	Ni80A superalloy microstructural evolution mechanisms grain refinement parameter loading path design Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Guo-Zheng Quan Yan-Ze Yu Xue Sheng Kun Yang Wei Xiong An Innovative Approach of Parameter Loading Path Design for Grain Refinement and Its Application in Ni80A Superalloy
description	In order to obtain the desired mechanical properties of products, an innovative method of loading parameter designs for acquiring the desired grain refinement is proposed, and it has been applied in the compression process of Ni80A superalloy. The deformation mechanism maps derived from processing maps based on the Dynamic Materials Model (DMM) theory were constructed, since the critical indicator values corresponding to dynamic recrystallization (DRX) and dynamic recovery (DRV) mechanisms were determined. The processing-parameter domains with DRX mechanisms were separated from the deformation mechanism map, while such domains were chaotic and difficult to apply in innovative parameter loading path design. The speed-loading path derived from strain rate-loading path in a compression process was pursued. The grain refinement domains are discretized into a finite series of sub-domains with clear processing parameters, and the optimal strain rate of each sub-domain is determined by step-by-step finite element simulation. A 3D response surface of the innovative optimal loading path of strain rate was fitted by interpolating methods. Finally, the isothermal compression experiments for Ni80A superalloy were conducted, and the microstructure observations indicated that the desired grain refinement was achieved. This innovative method of parameter loading path design contributes to the microstructure adjustment of the alloys with DRX mechanism.
format	article
author	Guo-Zheng Quan Yan-Ze Yu Xue Sheng Kun Yang Wei Xiong
author_facet	Guo-Zheng Quan Yan-Ze Yu Xue Sheng Kun Yang Wei Xiong
author_sort	Guo-Zheng Quan
title	An Innovative Approach of Parameter Loading Path Design for Grain Refinement and Its Application in Ni80A Superalloy
title_short	An Innovative Approach of Parameter Loading Path Design for Grain Refinement and Its Application in Ni80A Superalloy
title_full	An Innovative Approach of Parameter Loading Path Design for Grain Refinement and Its Application in Ni80A Superalloy
title_fullStr	An Innovative Approach of Parameter Loading Path Design for Grain Refinement and Its Application in Ni80A Superalloy
title_full_unstemmed	An Innovative Approach of Parameter Loading Path Design for Grain Refinement and Its Application in Ni80A Superalloy
title_sort	innovative approach of parameter loading path design for grain refinement and its application in ni80a superalloy
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/1d2e1a15dde140e9a4713e8ee5b6d029
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An Innovative Approach of Parameter Loading Path Design for Grain Refinement and Its Application in Ni80A Superalloy

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