Cr-Ni-Mo合金抗应力腐蚀地脚螺栓钢的研制

IF 2.3 4区材料科学 Q2 METALLURGY & METALLURGICAL ENGINEERING Anti-corrosion Methods and Materials Pub Date : 2023-11-24 DOI:10.1108/acmm-08-2023-2873

Hailong Du, Zengyao Chen, Xiyan Wang, Yongliang Li, Renshu Yang, Zhiyong Liu, Aibing Jin, Xiaogang Li

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引用次数: 0

摘要

目的通过添加抗腐蚀元素进行合金化和组织调控，开发新型锚杆材料。设计/方法/方法围绕1Ni系统设计了三种新的地脚螺栓材料。通过显微组织观察、电化学测试和慢应变速率拉伸测试对新材料的抗应力腐蚀开裂性能进行了表征。结果新型锚杆材料的强度得到提高，应力腐蚀敏感性降低。Nb的加入使材料在- 1200 mV条件下表现出优异的抗应力腐蚀性能，但当Nb和Sb耦合时却没有达到预期的效果。围绕1Ni设计的新型地脚螺栓材料具有优异的抗应力腐蚀性能，是未来材料的发展方向。Nb允许材料在析氢环境中保持其扩展的能力。

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Development of a Cr-Ni-Mo alloyed stress corrosion-resistant anchor bolt steel

Purpose

The purpose of this paper is to develop new types of anchor bolt materials by adding corrosion-resistant elements for alloying and microstructure regulation.

Design/methodology/approach

Three new anchor bolt materials were designed around the 1Ni system. The stress corrosion cracking resistance of the new materials was characterized by microstructure observation, electrochemical testing and slow strain rate tensile testing.

Findings

The strength of the new anchor bolt materials has been improved, and the stress corrosion sensitivity has been reduced. The addition of Nb makes the material exhibit excellent stress corrosion resistance under –1,200 mV conditions, but the expected results were not achieved when Nb and Sb were coupled.

Originality/value

The new anchor bolt materials designed around 1Ni have excellent stress corrosion resistance, which is the development direction of future materials. Nb allows the material to retain its ability to extend in hydrogen-evolution environments.

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来源期刊

Anti-corrosion Methods and Materials 工程技术-冶金工程

CiteScore

2.80

自引率

16.70%

发文量

审稿时长

13.5 months

期刊介绍： Anti-Corrosion Methods and Materials publishes a broad coverage of the materials and techniques employed in corrosion prevention. Coverage is essentially of a practical nature and designed to be of material benefit to those working in the field. Proven applications are covered together with company news and new product information. Anti-Corrosion Methods and Materials now also includes research articles that reflect the most interesting and strategically important research and development activities from around the world. Every year, industry pays a massive and rising cost for its corrosion problems. Research and development into new materials, processes and initiatives to combat this loss is increasing, and new findings are constantly coming to light which can help to beat corrosion problems throughout industry. This journal uniquely focuses on these exciting developments to make essential reading for anyone aiming to regain profits lost through corrosion difficulties. • New methods, materials and software • New developments in research and industry • Stainless steels • Protection of structural steelwork • Industry update, conference news, dates and events • Environmental issues • Health & safety, including EC regulations • Corrosion monitoring and plant health assessment • The latest equipment and processes • Corrosion cost and corrosion risk management.