Digole Satyavan, Karki Sanoj, Mugale Manoj, Choudhari Amit, Gupta Rajeev Kumar, Borkar Tushar
Department of Mechanical Engineering, Cleveland State University, Cleveland, OH 44115, USA.
Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC 27695, USA.
Materials (Basel). 2024 Jul 13;17(14):3469. doi: 10.3390/ma17143469.
The versatility of titanium (Ti) allows it to be employed in various industries, from aerospace engineering to medical technology, highlighting its significance in modern manufacturing and engineering processes. Spark plasma sintering (SPS) is currently being explored to enhance its properties further and broaden its application range. The current study focuses on exploring and optimizing the effect of SPS temperature (800, 900, 1000, 1100, 1200, and 1400 °C) on pure Ti sintered at 60 MPa in a controlled argon environment with a dwell time of 5 min. All the prepared samples were highly dense with a relative density above 99%, but exhibited significant variations in grain size (10 to 57 µm), tensile yield strength (488 to 700 MPa), ultimate tensile strength (597 to 792 MPa), and ductility (4 to 7%). A microstructural investigation was performed using XRD, SEM, and EDS to predict the influence of sintering temperature on the formation of different phases. The XRD patterns of all sintered samples showed the presence of single-phase α-Ti with hexagonally close-packed Ti. This work is a step forward in optimizing SPS-processed Ti's physical and mechanical properties for enhanced structural and biomedical applications.
钛（Ti）的多功能性使其能够应用于从航空航天工程到医疗技术等各个行业，凸显了其在现代制造和工程工艺中的重要性。目前正在探索放电等离子烧结（SPS）以进一步提高其性能并扩大其应用范围。当前的研究重点是在60 MPa压力、氩气控制环境、保温时间5分钟的条件下，探索和优化SPS温度（800、900、1000、1100、1200和1400°C）对纯钛烧结的影响。所有制备的样品都具有高密度，相对密度超过99%，但在晶粒尺寸（10至57 µm）、拉伸屈服强度（488至700 MPa）、极限抗拉强度（597至792 MPa）和延展性（4至7%）方面表现出显著差异。使用XRD、SEM和EDS进行了微观结构研究，以预测烧结温度对不同相形成的影响。所有烧结样品的XRD图谱均显示存在具有六方密堆积Ti的单相α-Ti。这项工作在优化SPS处理钛的物理和机械性能以增强结构和生物医学应用方面向前迈进了一步。
