Scholarlink

<p>Composite materials have completely transformed mechanical components, both in terms of quality and usefulness. Composites have almost entirely supplanted more conventional materials in many component designs. Using composites offers numerous additional properties and advantages. In this study, hybrid metal matrix composites (HMMCs) are made utilizing the liquid stir casting technique with AA7068 as the matrix and varying Zirconium di oxide (n-ZrO<sub>2</sub>) nano particles (1, 2, 3, and 4 %) with a particle size of 40 nm and fly ash (FA) (9, 8, 7, and 6 wt%) with a particle size of 40 micron. Mechanical properties including ultimate tensile strength (UTS), impact strength (IS), and elongation (El) are determined using a computerised universal testing machine (UTM). Vickers hardness (HV) test is utilized to assess the micro hardness of composites, and a tribological study is conducted to determine the wear rate (WR) of composites. Through scanning electron microscopy (SEM), the mechanism of fracture in tensile was studied. The results demonstrated that the mechanical and tribological properties of an HMMCs were improved by adding n-ZrO<sub>2</sub> and FA particles. The results show enhanced mechanical and tribological features for AA7068 of 90 wt%, n-ZrO<sub>2</sub> of 3 wt%, and FA of 7 wt%, including hardness of 118 HV, UTS of 325 MPa, El percentage of 0.85, IS of 89 J, and WR of 1.7 × 10<sup>−3</sup> mm<sup>3</sup>/m.</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

Examinations on hybrid AA7068 composites synthesized through stir casting route

  • 期刊论文

  • 发表日期：

    2026年3月10日

查看全文
  • R. Meenakshi Reddy,
  • Aman Sharma,
  • Samraj Ravi,
  • Vinayagam Mohanavel,
  • Thandavamoorthy Raja,
  • Manzoore Elahi M. Soudagar,
  • Srinivasan Suresh Kumar,
  • Sami Al Obaid,
  • Tahani Awad Alahmadi

摘要

Composite materials have completely transformed mechanical components, both in terms of quality and usefulness. Composites have almost entirely supplanted more conventional materials in many component designs. Using composites offers numerous additional properties and advantages. In this study, hybrid metal matrix composites (HMMCs) are made utilizing the liquid stir casting technique with AA7068 as the matrix and varying Zirconium di oxide (n-ZrO2) nano particles (1, 2, 3, and 4 %) with a particle size of 40 nm and fly ash (FA) (9, 8, 7, and 6 wt%) with a particle size of 40 micron. Mechanical properties including ultimate tensile strength (UTS), impact strength (IS), and elongation (El) are determined using a computerised universal testing machine (UTM). Vickers hardness (HV) test is utilized to assess the micro hardness of composites, and a tribological study is conducted to determine the wear rate (WR) of composites. Through scanning electron microscopy (SEM), the mechanism of fracture in tensile was studied. The results demonstrated that the mechanical and tribological properties of an HMMCs were improved by adding n-ZrO2 and FA particles. The results show enhanced mechanical and tribological features for AA7068 of 90 wt%, n-ZrO2 of 3 wt%, and FA of 7 wt%, including hardness of 118 HV, UTS of 325 MPa, El percentage of 0.85, IS of 89 J, and WR of 1.7 × 10−3 mm3/m.