Work

Effects of Vanadium and Niobium on the Mechanical Properties and High-Temperature Oxidation Behavior of Austenitic Stainless Steels

Year: 2025

Type: article

Abstract: This study focuses on the effects of vanadium and niobium microalloying elements on the mechanical properties and high-temperature oxidation behavior of austenitic stainless steels. Vanadium–niobium elements were confirmed to play an effective role in fine-grain strengthening at room temperature, achieving a tensile strength and yield strength of approximately 768.8 MPa and 464.6 MPa, respectively, with the additions of 0.32 wt% V and 0.21 wt% Nb. During the high-temperature oxidation process, the weight gain and cracking of the oxide layer increased with increasing niobium–vanadium content. The loose structure and delamination of the oxide layer during the oxidation process were caused by the enhanced internal stress of the oxide layer and the molten state of V2O5 at 850 °C.

Source: Metals

DOI: 10.3390/met15040347

Authors: Fan Wang, Zheng Zhang, Guizhi Xiao, Dening Zou

Institutions: Xi'an University of Architecture and Technology, Xi'an Special Equipment Inspection Institute, Xi'an Siyuan University

Language: English

Topic: High Temperature Alloys and Creep

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $3,137

Funder: National Natural Science Foundation of China