Scholarlink

<p>The investigation delves into the development or fabrication of metal matrix composites utilizing aluminum alloy AA7075 and incorporating the ceramic filler Si<sub>2</sub>N<sub>2</sub>O derived from rice husk ash. The primary objective of this research was to explore how the inclusion of Si<sub>2</sub>N<sub>2</sub>O silicon additive enhances the load-bearing properties of AA 7075 metal matrix composite. The stir casting method was employed to manufacture the metal matrix composites, adhering to ASTM standards for sample preparation. Among the various composites developed, the AS2 with 3-wt% Si<sub>2</sub>N<sub>2</sub>O and AA7075 composite emerged with the highest tensile strength and fatigue strength of 524&#xa0;MPa and 311&#xa0;MPa, respectively. Moreover, the introduction of 5 wt% of Si<sub>2</sub>N<sub>2</sub>O on AS3 composite resulted in improved hardness up to 192 BHN and exhibits minimal elongation of 4.44%.Furthermore, the addition of Si<sub>2</sub>N<sub>2</sub>O showcased a substantial enhancement in the coefficient of friction (COF) and specific wear rate, particularly in the composite AS3, which demonstrates 0.478 and 0.005 mm<sup>3</sup>/Nm. Additionally, the creep resistance of composite AS3 manifested minimal values at various time intervals 2000, 4000, 6000, 8000, and 10,000&#xa0;s, indicating its ability to withstand prolonged deformation under constant load and temperature conditions. These properties improved composites that could be used in manufacturing of car bodies and frames, as well as in the defense sector where the demand for lighter and stronger materials is required.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Mechanical, Wear, Fatigue, and Creep Behavior of Rice Ash Si2N2O Bioceramic Dispersed AA7075 Metal Matrix Composites

  • 期刊论文

  • 发表日期：

    2025年4月3日

查看全文
  • D. Sudarsan,
  • A. Bovas Herbert Bejaxhin,
  • P. Sujin,
  • T. Prabakaran

摘要

The investigation delves into the development or fabrication of metal matrix composites utilizing aluminum alloy AA7075 and incorporating the ceramic filler Si2N2O derived from rice husk ash. The primary objective of this research was to explore how the inclusion of Si2N2O silicon additive enhances the load-bearing properties of AA 7075 metal matrix composite. The stir casting method was employed to manufacture the metal matrix composites, adhering to ASTM standards for sample preparation. Among the various composites developed, the AS2 with 3-wt% Si2N2O and AA7075 composite emerged with the highest tensile strength and fatigue strength of 524 MPa and 311 MPa, respectively. Moreover, the introduction of 5 wt% of Si2N2O on AS3 composite resulted in improved hardness up to 192 BHN and exhibits minimal elongation of 4.44%.Furthermore, the addition of Si2N2O showcased a substantial enhancement in the coefficient of friction (COF) and specific wear rate, particularly in the composite AS3, which demonstrates 0.478 and 0.005 mm3/Nm. Additionally, the creep resistance of composite AS3 manifested minimal values at various time intervals 2000, 4000, 6000, 8000, and 10,000 s, indicating its ability to withstand prolonged deformation under constant load and temperature conditions. These properties improved composites that could be used in manufacturing of car bodies and frames, as well as in the defense sector where the demand for lighter and stronger materials is required.