A New Maraging Stainless Steel with Excellent Strength–Toughness–Corrosion Synergy

A new maraging stainless steel with superior strength–toughness–corrosion synergy has been developed based on an innovative concept of alloy design. The high strength–toughness combination is achieved by forming dispersive nano-sized intermetallic compounds in the soft lath martensitic matrix with a...

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Autores principales: Tian, Jialong, Wang, Wei, Babar Shahzad, M., Yan, Wei, Shan, Yiyin, Jiang, Zhouhua, Yang, Ke
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5706240/
https://www.ncbi.nlm.nih.gov/pubmed/29125550
http://dx.doi.org/10.3390/ma10111293
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author Tian, Jialong
Wang, Wei
Babar Shahzad, M.
Yan, Wei
Shan, Yiyin
Jiang, Zhouhua
Yang, Ke
author_facet Tian, Jialong
Wang, Wei
Babar Shahzad, M.
Yan, Wei
Shan, Yiyin
Jiang, Zhouhua
Yang, Ke
author_sort Tian, Jialong
collection PubMed
description A new maraging stainless steel with superior strength–toughness–corrosion synergy has been developed based on an innovative concept of alloy design. The high strength–toughness combination is achieved by forming dispersive nano-sized intermetallic compounds in the soft lath martensitic matrix with a slight amount of residual austenite. The good corrosion resistance is guaranteed by exactly controlling the Co content based on understanding the synergistic effect between Co and Cr. The fine structure characteristics of two dominant strengthening precipitations including Ni(3)Ti and Mo-rich phases were finely characterized associated with transmission electron microscope (TEM) and atom probe tomography (APT) analyses. The relationship among microstructure, strength and toughness is discussed. The precipitation mechanism of different precipitates in the new maraging stainless steel is revealed based on the APT analysis.
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spelling pubmed-57062402017-12-04 A New Maraging Stainless Steel with Excellent Strength–Toughness–Corrosion Synergy Tian, Jialong Wang, Wei Babar Shahzad, M. Yan, Wei Shan, Yiyin Jiang, Zhouhua Yang, Ke Materials (Basel) Article A new maraging stainless steel with superior strength–toughness–corrosion synergy has been developed based on an innovative concept of alloy design. The high strength–toughness combination is achieved by forming dispersive nano-sized intermetallic compounds in the soft lath martensitic matrix with a slight amount of residual austenite. The good corrosion resistance is guaranteed by exactly controlling the Co content based on understanding the synergistic effect between Co and Cr. The fine structure characteristics of two dominant strengthening precipitations including Ni(3)Ti and Mo-rich phases were finely characterized associated with transmission electron microscope (TEM) and atom probe tomography (APT) analyses. The relationship among microstructure, strength and toughness is discussed. The precipitation mechanism of different precipitates in the new maraging stainless steel is revealed based on the APT analysis. MDPI 2017-11-10 /pmc/articles/PMC5706240/ /pubmed/29125550 http://dx.doi.org/10.3390/ma10111293 Text en © 2017 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Tian, Jialong
Wang, Wei
Babar Shahzad, M.
Yan, Wei
Shan, Yiyin
Jiang, Zhouhua
Yang, Ke
A New Maraging Stainless Steel with Excellent Strength–Toughness–Corrosion Synergy
title A New Maraging Stainless Steel with Excellent Strength–Toughness–Corrosion Synergy
title_full A New Maraging Stainless Steel with Excellent Strength–Toughness–Corrosion Synergy
title_fullStr A New Maraging Stainless Steel with Excellent Strength–Toughness–Corrosion Synergy
title_full_unstemmed A New Maraging Stainless Steel with Excellent Strength–Toughness–Corrosion Synergy
title_short A New Maraging Stainless Steel with Excellent Strength–Toughness–Corrosion Synergy
title_sort new maraging stainless steel with excellent strength–toughness–corrosion synergy
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5706240/
https://www.ncbi.nlm.nih.gov/pubmed/29125550
http://dx.doi.org/10.3390/ma10111293
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