Effect of thermal aging on the mechanical, intergranular corrosion and corrosion fatigue properties of Z3CN20.09M cast duplex stainless steel

Effect of thermal aging on the mechanical, intergranular corrosion and corrosion fatigue properties of Z3CN20.09M cast duplex stainless steel

The effect of thermal aging at 475 °C and 750 °C of Z3CN20.09M cast duplex stainless steel (CDSS) on microstructure, mechanical and intergranular corrosion properties were investigated by transmission electron microscope (TEM), nano indenter, scanning electron microscope (SEM) and corrosion fatigue...

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Main Authors: Wenxin Ti, Huanchun Wu, Fei Xue, Guodong Zhang, Qunjia Peng, Kewei Fang, Xitao Wang
Format: Article
Language:English
Published: Elsevier 2021-08-01
Series:Nuclear Engineering and Technology
Subjects:
Thermal aging
Spinodal decomposition
Sigma precipitation
Corrosion fatigue
High temperature water
Online Access:http://www.sciencedirect.com/science/article/pii/S1738573321000632
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spelling doaj-8ded3033c2054fad9bc8d855b69b73e02021-07-03T04:44:51ZengElsevierNuclear Engineering and Technology1738-57332021-08-0153825912599Effect of thermal aging on the mechanical, intergranular corrosion and corrosion fatigue properties of Z3CN20.09M cast duplex stainless steelWenxin Ti0Huanchun Wu1Fei Xue2Guodong Zhang3Qunjia Peng4Kewei Fang5Xitao Wang6Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing, 100083, China; Plant Life Management Center, Suzhou Nuclear Power Research Institute, Suzhou, 215004, ChinaPlant Life Management Center, Suzhou Nuclear Power Research Institute, Suzhou, 215004, China; Corresponding author.Plant Life Management Center, Suzhou Nuclear Power Research Institute, Suzhou, 215004, ChinaPlant Life Management Center, Suzhou Nuclear Power Research Institute, Suzhou, 215004, ChinaPlant Life Management Center, Suzhou Nuclear Power Research Institute, Suzhou, 215004, ChinaPlant Life Management Center, Suzhou Nuclear Power Research Institute, Suzhou, 215004, ChinaCollaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing, 100083, China; Corresponding author.The effect of thermal aging at 475 °C and 750 °C of Z3CN20.09M cast duplex stainless steel (CDSS) on microstructure, mechanical and intergranular corrosion properties were investigated by transmission electron microscope (TEM), nano indenter, scanning electron microscope (SEM) and corrosion fatigue test system. The result indicated that the spinodal decomposition and G precipitated were occurred after aged at 475 °C, as well as sigma precipitated at 750 °C. The microstructure degeneration of ferrite was saturated after aged for 2000h and 200 h at 475 °C and 750 °C respectively. The mechanical properties, intergranular corrosion resistance and corrosion fatigue lives were continuing deteriorated with increasing the aging time at both temperatures. The difference of the degeneration mechanisms of Z3CN20.09M CDSS aged at 475 °C and 750 °C was analyzed.http://www.sciencedirect.com/science/article/pii/S1738573321000632Thermal agingSpinodal decompositionSigma precipitationCorrosion fatigueHigh temperature water
collection DOAJ
language English
format Article
sources DOAJ
author Wenxin Ti
Huanchun Wu
Fei Xue
Guodong Zhang
Qunjia Peng
Kewei Fang
Xitao Wang
spellingShingle Wenxin Ti
Huanchun Wu
Fei Xue
Guodong Zhang
Qunjia Peng
Kewei Fang
Xitao Wang
Effect of thermal aging on the mechanical, intergranular corrosion and corrosion fatigue properties of Z3CN20.09M cast duplex stainless steel
Nuclear Engineering and Technology
Thermal aging
Spinodal decomposition
Sigma precipitation
Corrosion fatigue
High temperature water
author_facet Wenxin Ti
Huanchun Wu
Fei Xue
Guodong Zhang
Qunjia Peng
Kewei Fang
Xitao Wang
author_sort Wenxin Ti
title Effect of thermal aging on the mechanical, intergranular corrosion and corrosion fatigue properties of Z3CN20.09M cast duplex stainless steel
title_short Effect of thermal aging on the mechanical, intergranular corrosion and corrosion fatigue properties of Z3CN20.09M cast duplex stainless steel
title_full Effect of thermal aging on the mechanical, intergranular corrosion and corrosion fatigue properties of Z3CN20.09M cast duplex stainless steel
title_fullStr Effect of thermal aging on the mechanical, intergranular corrosion and corrosion fatigue properties of Z3CN20.09M cast duplex stainless steel
title_full_unstemmed Effect of thermal aging on the mechanical, intergranular corrosion and corrosion fatigue properties of Z3CN20.09M cast duplex stainless steel
title_sort effect of thermal aging on the mechanical, intergranular corrosion and corrosion fatigue properties of z3cn20.09m cast duplex stainless steel
publisher Elsevier
series Nuclear Engineering and Technology
issn 1738-5733
publishDate 2021-08-01
description The effect of thermal aging at 475 °C and 750 °C of Z3CN20.09M cast duplex stainless steel (CDSS) on microstructure, mechanical and intergranular corrosion properties were investigated by transmission electron microscope (TEM), nano indenter, scanning electron microscope (SEM) and corrosion fatigue test system. The result indicated that the spinodal decomposition and G precipitated were occurred after aged at 475 °C, as well as sigma precipitated at 750 °C. The microstructure degeneration of ferrite was saturated after aged for 2000h and 200 h at 475 °C and 750 °C respectively. The mechanical properties, intergranular corrosion resistance and corrosion fatigue lives were continuing deteriorated with increasing the aging time at both temperatures. The difference of the degeneration mechanisms of Z3CN20.09M CDSS aged at 475 °C and 750 °C was analyzed.
topic Thermal aging
Spinodal decomposition
Sigma precipitation
Corrosion fatigue
High temperature water
url http://www.sciencedirect.com/science/article/pii/S1738573321000632
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AT huanchunwu effectofthermalagingonthemechanicalintergranularcorrosionandcorrosionfatiguepropertiesofz3cn2009mcastduplexstainlesssteel
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