| Title: | Quasi‐static and fatigue strength of copper‐brazed stainless steel |
|---|
| Authors: | ID Glodež, Srečko (Author)
ID Bončina, Tonica (Author)
ID Dvoršak, Žan (Author)
ID Nečemer, Branko (Author)
ID Zupanič, Franc (Author) |
|---|
| Files: |  applsci-16-02160-v2.pdf (9,46 MB)
MD5: 28CC8196F5F4CE1AFC5835FF453B0375
 https://www.mdpi.com/2076-3417/16/4/2160
|
|---|
| Language: | English |
|---|
| Work type: | Article |
|---|
| Typology: | 1.01 - Original Scientific Article |
|---|
| Organization: | FS - Faculty of Mechanical Engineering
|
|---|
| Abstract: | This study investigates the quasi‐static and fatigue strength of copper‐brazed 316L stainless steel. Quasi‐static and fatigue tests were conducted at room temperature (20 °C) using a Zwick/Roell Vibrophore 100 testing machine and specially designed copper‐brazed specimens. Two types of specimens were prepared—tensile and shear specimens—to obtain the stress–strain relationships (σ–ε and τ–ε) and the fatigue life (S–N) curves. Based on the experimental results, the quasi‐static and fatigue strengths of the copper‐brazed joints under external tensile and shear loading were evaluated. The fatigue tests reveal that the shear fatigue strength is significantly lower than the tensile fatigue strength. Furthermore, a comprehensive investigation was conducted, focusing on the metallographic characterisation of the brazed joint and fractographic analyses of fracture surfaces obtained under quasi‐static and fatigue loading, with particular emphasis on the shear strength of the investigated brazed joint. The experimental results obtained may be crucial for designing engineering structures (e.g., plate heat exchangers), where copper‐brazed joints are the weakest members of the structure. |
|---|
| Keywords: | copper‐brazed joint, quasi‐static testing, fatigue testing, metallographic investigation |
|---|
| Publication status: | Published |
|---|
| Publication version: | Version of Record |
|---|
| Submitted for review: | 20.01.2026 |
|---|
| Article acceptance date: | 20.02.2026 |
|---|
| Publication date: | 23.02.2026 |
|---|
| Publisher: | MDPI |
|---|
| Year of publishing: | 2026 |
|---|
| Number of pages: | 17 str. |
|---|
| Numbering: | Vol. 16, iss. 4, [article no.] 2160 |
|---|
| PID: | 20.500.12556/DKUM-97463  |
|---|
| UDC: | 621.791:620.1 |
|---|
| ISSN on article: | 2076-3417 |
|---|
| COBISS.SI-ID: | 271023619 |
|---|
| DOI: | 10.3390/app16042160 |
|---|
| Publication date in DKUM: | 10.03.2026 |
|---|
| Views: | 196 |
|---|
| Downloads: | 25 |
|---|
| Metadata: |    |
|---|
| Categories: | Misc.
|
|---|
|
:
|
Copy citation |
|---|
| | | | Average score: | (0 votes) |
|---|
| Your score: | Voting is allowed only for logged in users. |
|---|
| Share: |  |
|---|
Hover the mouse pointer over a document title to show the abstract or click
on the title to get all document metadata. |
