Effect of Annealing Process on the Mechanical Properties of X70 Pipeline Steel

Effect of Annealing Process on the Mechanical Properties of X70 Pipeline Steel

The influence of the mechanical properties of X70 pipeline steel under different annealing temperature was studied. The corresponding microstructure was investigated by the Field Emission Scanning Electron Microscopy. The results showed that the yield strength and the tensile strength both experienc...

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Main Authors: Zhu Teng-wei, Miao Cheng-liang, Cheng Zheng, Wang Zhipeng, Cui Yang, Li Fei
Format: Article
Language:English
Published: EDP Sciences 2018-01-01
Series:MATEC Web of Conferences
Online Access:https://doi.org/10.1051/matecconf/201818602001
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spelling doaj-3ede48c3d8464b88b7b78ec10c4ea6c62021-04-02T10:00:58ZengEDP SciencesMATEC Web of Conferences2261-236X2018-01-011860200110.1051/matecconf/201818602001matecconf_icemp2018_02001Effect of Annealing Process on the Mechanical Properties of X70 Pipeline SteelZhu Teng-weiMiao Cheng-liangCheng ZhengWang ZhipengCui YangLi FeiThe influence of the mechanical properties of X70 pipeline steel under different annealing temperature was studied. The corresponding microstructure was investigated by the Field Emission Scanning Electron Microscopy. The results showed that the yield strength and the tensile strength both experienced from rise to decline with the increase of annealing temperature. The grain sizes were coarse and a large amount of cementite precipitated due to preserving temperature above 550 °, which induced matrix fragmentation and deteriorate the -10 ° DWTT Toughness. There were little changes on the microstructure and mechanical properties when the annealing temperature was under 500 °.https://doi.org/10.1051/matecconf/201818602001
collection DOAJ
language English
format Article
sources DOAJ
author Zhu Teng-wei
Miao Cheng-liang
Cheng Zheng
Wang Zhipeng
Cui Yang
Li Fei
spellingShingle Zhu Teng-wei
Miao Cheng-liang
Cheng Zheng
Wang Zhipeng
Cui Yang
Li Fei
Effect of Annealing Process on the Mechanical Properties of X70 Pipeline Steel
MATEC Web of Conferences
author_facet Zhu Teng-wei
Miao Cheng-liang
Cheng Zheng
Wang Zhipeng
Cui Yang
Li Fei
author_sort Zhu Teng-wei
title Effect of Annealing Process on the Mechanical Properties of X70 Pipeline Steel
title_short Effect of Annealing Process on the Mechanical Properties of X70 Pipeline Steel
title_full Effect of Annealing Process on the Mechanical Properties of X70 Pipeline Steel
title_fullStr Effect of Annealing Process on the Mechanical Properties of X70 Pipeline Steel
title_full_unstemmed Effect of Annealing Process on the Mechanical Properties of X70 Pipeline Steel
title_sort effect of annealing process on the mechanical properties of x70 pipeline steel
publisher EDP Sciences
series MATEC Web of Conferences
issn 2261-236X
publishDate 2018-01-01
description The influence of the mechanical properties of X70 pipeline steel under different annealing temperature was studied. The corresponding microstructure was investigated by the Field Emission Scanning Electron Microscopy. The results showed that the yield strength and the tensile strength both experienced from rise to decline with the increase of annealing temperature. The grain sizes were coarse and a large amount of cementite precipitated due to preserving temperature above 550 °, which induced matrix fragmentation and deteriorate the -10 ° DWTT Toughness. There were little changes on the microstructure and mechanical properties when the annealing temperature was under 500 °.
url https://doi.org/10.1051/matecconf/201818602001
work_keys_str_mv AT zhutengwei effectofannealingprocessonthemechanicalpropertiesofx70pipelinesteel
AT miaochengliang effectofannealingprocessonthemechanicalpropertiesofx70pipelinesteel
AT chengzheng effectofannealingprocessonthemechanicalpropertiesofx70pipelinesteel
AT wangzhipeng effectofannealingprocessonthemechanicalpropertiesofx70pipelinesteel
AT cuiyang effectofannealingprocessonthemechanicalpropertiesofx70pipelinesteel
AT lifei effectofannealingprocessonthemechanicalpropertiesofx70pipelinesteel
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