Cargando…

Enhancing the SCC Resistance of the Anchor Steel with Microalloying in a Simulated Mine Environment

This work explored a new idea for enhancing the resistance to stress corrosion cracking (SCC) of mining anchor steel through microalloying. Microalloyed anchor steels with Nb, Cu, Ni, Sb, and C were prepared through vacuum smelting and hot rolling. Electrochemical measurements, slow strain rate tens...

Descripción completa

Detalles Bibliográficos
Autores principales: Du, Hailong, An, Na, Wang, Xiyan, Li, Yongliang, Liu, Zhiyong, Jin, Aibing, Yang, Renshu, Pan, Yue, Li, Xiaogang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10488900/
https://www.ncbi.nlm.nih.gov/pubmed/37687657
http://dx.doi.org/10.3390/ma16175965
_version_ 1785103586434220032
author Du, Hailong
An, Na
Wang, Xiyan
Li, Yongliang
Liu, Zhiyong
Jin, Aibing
Yang, Renshu
Pan, Yue
Li, Xiaogang
author_facet Du, Hailong
An, Na
Wang, Xiyan
Li, Yongliang
Liu, Zhiyong
Jin, Aibing
Yang, Renshu
Pan, Yue
Li, Xiaogang
author_sort Du, Hailong
collection PubMed
description This work explored a new idea for enhancing the resistance to stress corrosion cracking (SCC) of mining anchor steel through microalloying. Microalloyed anchor steels with Nb, Cu, Ni, Sb, and C were prepared through vacuum smelting and hot rolling. Electrochemical measurements, slow strain rate tensile (SSRT) tests, and fracture morphology observations were used to study the electrochemical and SCC behavior in the simulated mine environment. The results proved that the microstructure of microalloyed steels varies slightly. Adding Ni, Cu, and Sb can improve the mechanical properties of the anchor steel, while reducing C content decreases tensile strength as a result of loss of the solution-strengthening effect. The addition of Sb, Cu, Ni, and reducing the content of C enhances the resistance to corrosion and SCC by mitigating anodic dissolution (AD), while adding Nb improves SCC resistance by inhibiting hydrogen embrittlement (HE). The combined addition of 1% Ni, 0.5% Cu, 0.05% Nb, 0.1% Sb, and 0.5% C presented the highest SCC resistance, which is a promising prospect for the development of high-performance, low-alloy anchor steels. The combined addition of 1% Ni, 0.5% Cu, 0.05% Nb, and 0.1% Sb resulted in the inhibition of electrochemical reactions and corrosion. As a result of the synergistic effect of the microalloy, both AD and HE mechanisms were simultaneously inhibited, which greatly enhanced SCC resistance.
format Online
Article
Text
id pubmed-10488900
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-104889002023-09-09 Enhancing the SCC Resistance of the Anchor Steel with Microalloying in a Simulated Mine Environment Du, Hailong An, Na Wang, Xiyan Li, Yongliang Liu, Zhiyong Jin, Aibing Yang, Renshu Pan, Yue Li, Xiaogang Materials (Basel) Article This work explored a new idea for enhancing the resistance to stress corrosion cracking (SCC) of mining anchor steel through microalloying. Microalloyed anchor steels with Nb, Cu, Ni, Sb, and C were prepared through vacuum smelting and hot rolling. Electrochemical measurements, slow strain rate tensile (SSRT) tests, and fracture morphology observations were used to study the electrochemical and SCC behavior in the simulated mine environment. The results proved that the microstructure of microalloyed steels varies slightly. Adding Ni, Cu, and Sb can improve the mechanical properties of the anchor steel, while reducing C content decreases tensile strength as a result of loss of the solution-strengthening effect. The addition of Sb, Cu, Ni, and reducing the content of C enhances the resistance to corrosion and SCC by mitigating anodic dissolution (AD), while adding Nb improves SCC resistance by inhibiting hydrogen embrittlement (HE). The combined addition of 1% Ni, 0.5% Cu, 0.05% Nb, 0.1% Sb, and 0.5% C presented the highest SCC resistance, which is a promising prospect for the development of high-performance, low-alloy anchor steels. The combined addition of 1% Ni, 0.5% Cu, 0.05% Nb, and 0.1% Sb resulted in the inhibition of electrochemical reactions and corrosion. As a result of the synergistic effect of the microalloy, both AD and HE mechanisms were simultaneously inhibited, which greatly enhanced SCC resistance. MDPI 2023-08-31 /pmc/articles/PMC10488900/ /pubmed/37687657 http://dx.doi.org/10.3390/ma16175965 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Du, Hailong
An, Na
Wang, Xiyan
Li, Yongliang
Liu, Zhiyong
Jin, Aibing
Yang, Renshu
Pan, Yue
Li, Xiaogang
Enhancing the SCC Resistance of the Anchor Steel with Microalloying in a Simulated Mine Environment
title Enhancing the SCC Resistance of the Anchor Steel with Microalloying in a Simulated Mine Environment
title_full Enhancing the SCC Resistance of the Anchor Steel with Microalloying in a Simulated Mine Environment
title_fullStr Enhancing the SCC Resistance of the Anchor Steel with Microalloying in a Simulated Mine Environment
title_full_unstemmed Enhancing the SCC Resistance of the Anchor Steel with Microalloying in a Simulated Mine Environment
title_short Enhancing the SCC Resistance of the Anchor Steel with Microalloying in a Simulated Mine Environment
title_sort enhancing the scc resistance of the anchor steel with microalloying in a simulated mine environment
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10488900/
https://www.ncbi.nlm.nih.gov/pubmed/37687657
http://dx.doi.org/10.3390/ma16175965
work_keys_str_mv AT duhailong enhancingthesccresistanceoftheanchorsteelwithmicroalloyinginasimulatedmineenvironment
AT anna enhancingthesccresistanceoftheanchorsteelwithmicroalloyinginasimulatedmineenvironment
AT wangxiyan enhancingthesccresistanceoftheanchorsteelwithmicroalloyinginasimulatedmineenvironment
AT liyongliang enhancingthesccresistanceoftheanchorsteelwithmicroalloyinginasimulatedmineenvironment
AT liuzhiyong enhancingthesccresistanceoftheanchorsteelwithmicroalloyinginasimulatedmineenvironment
AT jinaibing enhancingthesccresistanceoftheanchorsteelwithmicroalloyinginasimulatedmineenvironment
AT yangrenshu enhancingthesccresistanceoftheanchorsteelwithmicroalloyinginasimulatedmineenvironment
AT panyue enhancingthesccresistanceoftheanchorsteelwithmicroalloyinginasimulatedmineenvironment
AT lixiaogang enhancingthesccresistanceoftheanchorsteelwithmicroalloyinginasimulatedmineenvironment