Academic Journal

Influence of B4C Particle Size on the Microstructure and Mechanical Properties of B4C/Al Composites Fabricated by Pressureless Infiltration

التفاصيل البيبلوغرافية
العنوان: Influence of B4C Particle Size on the Microstructure and Mechanical Properties of B4C/Al Composites Fabricated by Pressureless Infiltration
المؤلفون: Yao Liu, Haokai Peng, Longjun Wei, Hao Peng, Donglin Ma, Yongxiang Leng
المصدر: Metals, Vol 13, Iss 8, p 1358 (2023)
بيانات النشر: MDPI AG, 2023.
سنة النشر: 2023
المجموعة: LCC:Mining engineering. Metallurgy
مصطلحات موضوعية: pressureless infiltration, B4C/Al composites, B4C particle size, mechanical properties, Mining engineering. Metallurgy, TN1-997
الوصف: To investigate the effect of B4C particle size on the microstructure and mechanical properties of B4C/Al composites, and to provide theoretical guidance for the subsequent thermal processing of composites, B4C/Al composites with varying B4C particle sizes (0.2 µm, 0.5 µm, 1 µm, 10 µm) were fabricated using pressureless infiltration. The microstructure of the composites was characterized using X-ray diffraction (XRD) and scanning electron microscopy (SEM), while the mechanical properties were analyzed by hardness test, three-point bending and high temperature compression. The results indicated that Al3BC and AlB2 were the primary interfacial reaction products in B4C/Al composites, and interface reaction could be alleviated with increasing particle size. B4C/Al composites with larger B4C particle sizes exhibited a relatively uniform and discrete distribution of B4C, while those with smaller B4C particle sizes showed agglomeration of B4C. The Vickers hardness and peak flow stress of B4C/Al composites gradually decreased with the increase of B4C particle size, while the bending strength, flexural modulus, and fracture toughness tended to increase. In addition, when B4C particle size was 10 µm, the composites displayed optimal comprehensive performance with the lowest peak flow stress (150 MPa) and the highest fracture toughness (12.75 MPa·m1/2).
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2075-4701
Relation: https://www.mdpi.com/2075-4701/13/8/1358; https://doaj.org/toc/2075-4701
DOI: 10.3390/met13081358
URL الوصول: https://doaj.org/article/4bf4b339a2b945ebb4ed4fede4cfb181
رقم الانضمام: edsdoj.4bf4b339a2b945ebb4ed4fede4cfb181
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20754701
DOI:10.3390/met13081358