Effect of Mo on the σ-phase precipitation behavior of super-austenitic stainless steel-Reference-Cited by-同舟云学术

Effect of Mo on the σ-phase precipitation behavior of super-austenitic stainless steel

Published:2024-06-01 Issue:2 Volume:13 Page:141-151
ISSN:2046-0147
Container-title:Emerging Materials Research
language:en
Short-container-title:Emerging Materials Research

Author:

Hu Qun-kun¹,Du Hua-yun²,Sun Xiaolu³,Hou Li-feng²,Wang Qian¹,Guo Zhanhu⁴,Li Handong⁵,Fan Jincheng⁶,Wei Ying-hui¹,Liu Xiao-da¹,Wei Huan¹,Guo Xingkui⁷

Affiliation:

1. Department of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, China

2. Department of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, China; Aluminum-Magnesium Based New Material R&D Co., Ltd, Lvliang, China

3. College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, China

4. Integrated Composites Lab, Department of Mechanical and Construction Engineering, Northumbria University, Newcastle upon Tyne, UK

5. Integrated Composites Lab, Department of Mechanical and Construction Engineering, Northumbria University, Newcastle upon Tyne, UK; College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, China

6. College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, China

7. Department of Materials Science and Engineering, National University of Singapore, Singapore, Singapore

Abstract

The aging precipitation behavior of super-austenitic stainless steels 904L (4.32% molybdenum (Mo)), 254SMo (6.06% molybdenum) and AL-6XN (6.29% molybdenum) with different molybdenum contents at 800–900°C was investigated by scanning electron microscopy, X-ray diffraction and transmission electron microscopy. The effect of molybdenum content on the σ-phase precipitation behavior of commonly used super-austenitic stainless steel was investigated. The results show that the super-austenitic stainless steels with different molybdenum contents formed different numbers and shapes of σ phases in the isothermal aging process, and the number of σ phases of 254SMo and AL-6XN is much larger than that of 904L, and the shape of the σ phases mainly shows coarse acicularity and elongation, while the σ phases of 904L show fine granularity.

Publisher

Emerald

Link

https://www.icevirtuallibrary.com/doi/pdf/10.1680/jemmr.23.00085

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1. Editorial: Materials with multidisciplinary applications;Emerging Materials Research;2024-06-01