Creep Buckling of 304 Stainless-Steel Tubes Subjected to External Pressure for Nuclear Power Plant Applications

Abstract

The creep-buckling behaviors of cylindrical stainless-steel tubes subjected to radial external pressure load at elevated temperatures—800, 900, and 1000 °C—were experimentally investigated. Prior to the creep-buckling tests, the buckling pressure was measured under each temperature condition. Then, in creep-buckling experiments, the creep-buckling failure time was measured by reducing the external pressure load for two different tube specimens—representing the first and second buckling modes—to examine the relationship between the external pressure and the creep-buckling failure time. The measured failure time ranged from <1 min to <4 h under 99–41% loading of the buckling pressure. Additionally, an empirical correlation was developed using the Larson–Miller parameter model to predict the long-term buckling time of the stainless-steel tube column according to the experimental results. Moreover, the creep-buckling processes were recorded by two high-speed cameras. Finally, the characteristics of the creep buckling under radial loading were discussed with regard to the geometrical imperfections of the tubes and the material properties of the stainless steel at the high temperatures.

Effect of Uncertainty in Localized Imperfection on the Ultimate Compressive Strength of Cold-Formed Stainless Steel Hollow Sections

“…A plot of Pnl/Pne versus λl is shown in Figure 9. It should be pointed out that, although Equations (10) and (11) are developed based on carbon steel members, the two equations are applicable to stainless steel members with cold-formed RHS and SHS and give an accurate prediction [40,41]. Details of the studied columns are shown in Table 2.…”

“…It allows for large spans, and thus is a choice to achieve the optimal economic benefit. As stainless steels have excellent corrosion resistance properties, considerable long-term durability, and good mechanical strength [10][11][12][13][14], the use of cold-formed stainless steel rectangular hollow section (RHS) and square hollow section (SHS) (shown in Figure 2a) in construction industry has attracted considerable attention. For example, these sections have been used in the facade of the building of department of Chemistry, ETH Zürich (Switzerland), shown in Figure 2b, and the support frame of Marqués de Riscal Vineyard (Spain), shown in Figure 2c.…”

Creep and High-Temperature Deformation of Metals and Alloys

“…In fact, in industrial applications, materials can operate under different loading or temperature conditions where phenomena like creep-buckling and creep-fatigue can significantly affect the material deformation, microstructural and damage evolution, and final fracture with respect to its behaviour under conventional testing conditions. In the present issue of Metals, these features have been introduced and applied to representative and widely diffused steels, such as the austenitic stainless steel 304, for which buckling phenomena have been investigated by Jo et al [9] in the specific case of tubes subjected to radial external pressure load in the temperature range of 800-1000 • C. Jürgens et al [10] have investigated the low-cycle fatigue and relaxation phenomena for the P92 steel, a representative 9-12% Cr ferritic-martensitic steel.…”

A Robust Superhydrophobic/Conductive Composite Coating with Excellent Anticorrosive Performance

“…Corrosion has caused economic losses of more than GDP 3 % each year in the world as the stainless steel is widely used in various industries such as biomedicine, energy storage equipment, automotive industry, nuclear power industry and shipping industry, etc [1–6] . The common anti‐corrosion methods have cathodic protection, anodic protection, passivation, coatings, etc [7–10] .…”