دورية أكاديمية
Fatigue Crack Growth Rate Description of RF-Plasma-Sprayed Refractory Metals and Alloys
| العنوان: | Fatigue Crack Growth Rate Description of RF-Plasma-Sprayed Refractory Metals and Alloys |
|---|---|
| المؤلفون: | Ondrej Kovarik, Jan Cizek, Jakub Klecka |
| المصدر: | Materials, Vol 16, Iss 4, p 1713 (2023) |
| بيانات النشر: | MDPI AG, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Technology LCC:Electrical engineering. Electronics. Nuclear engineering LCC:Engineering (General). Civil engineering (General) LCC:Microscopy LCC:Descriptive and experimental mechanics |
| مصطلحات موضوعية: | fatigue crack growth, analytical model, refractory materials, RF plasma spray, Technology, Electrical engineering. Electronics. Nuclear engineering, TK1-9971, Engineering (General). Civil engineering (General), TA1-2040, Microscopy, QH201-278.5, Descriptive and experimental mechanics, QC120-168.85 |
| الوصف: | A fitting method capable of describing the fatigue crack growth rate (FCGR) data in all stages of crack propagation by a simple Forman-style analytical formula was developed. To demonstrate its robustness, this method was used to quantify the fracture behavior of RF-plasma-sprayed W, Mo, W-Mo composite, and four selected Ni-based tungsten heavy alloys (WHA). The fitted FCGR parameters categorized the studied materials into two distinct sets. W, Mo, and W-Mo composite deposits made from inherently brittle refractory metals that contained a range of defects inherent to plasma spray process represented the first class. This class was characterized by low fracture toughness and a relatively wide range of fatigue crack growth thresholds. The second class of materials was represented by WHA. Here, the deposit defects were suppressed by liquid state diffusion that formed a typical WHA structure consisting of a Ni-rich matrix and large spherical W reinforcement particles. The WHA generally showed higher fatigue crack growth thresholds, but differed in fracture toughness values based on the W particle concentrations. The obtained fracture mechanical data represent a reference dataset of plasma-sprayed refractory materials, and their classification into groups clearly demonstrates the capabilities of the developed method to capture a wide range of different types of FCGR behavior. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1996-1944 |
| Relation: | https://www.mdpi.com/1996-1944/16/4/1713; https://doaj.org/toc/1996-1944 |
| DOI: | 10.3390/ma16041713 |
| URL الوصول: | https://doaj.org/article/66ecdad1b2e547828db00b5b3c0e90bf |
| رقم الأكسشن: | edsdoj.66ecdad1b2e547828db00b5b3c0e90bf |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 19961944 |
|---|---|
| DOI: | 10.3390/ma16041713 |