Work

Effect of V content on high temperature oxidation resistance of S30403 austenitic stainless steel

Year: 2025

Type: article

Abstract: In this study, the high-temperature oxidation resistance of six variants of S30403 austenitic stainless steel, differing in V content, was investigated at 700 and 800 °C under air atmosphere using the static discontinuous oxidation weight gain method. The results demonstrate that V exhibits a negative impact on the high-temperature oxidation resistance of austenitic stainless steel at 700 and 800 °C. As the V content in the steel rises, the oxidation rate also tends to elevate, with the highest values recorded at 0.1138 g m −2 h −1 at 700 °C and 0.4707 g m −2 h −1 at 800 °C, respectively. The V element in the V-containing steel is uniformly distributed in the matrix and oxide film, which promotes the internal oxidation of Cr and Si elements. The content of Cr 2 O 3 and SiO 2 oxides on the surface decreases, and the Mn and Fe elements diffuse outward through the oxide film to form spinel structure MnCr 2 O 4 . The oxide film on the steel’s surface experiences a gradual decline in its continuity and compactness, which consequently leads to a decrease in the steel’s high-temperature oxidation resistance.

Source: Scientific Reports

DOI: 10.1038/s41598-025-17971-6

Authors: Yao Zhao, Bin Shen, Zhiying Li, Hui Yang, Changrong Li

Institution: Guizhou University

Language: English

Topic: High-Temperature Coating Behaviors

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,690

Funders: National Natural Science Foundation of China, Science and Technology Program of Guizhou Province