Microstructure and properties of fine-grained pure Ti materials for golf heads
YANG Hong1.，ZHANG Haolin2.，ZHOU Zheng2.
（1.School of Physical Education, Henan University of Science and Technology, Luoyang 471023, China；2. Col‐
lege of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, China）
摘要高尔夫球头的高强度打击面非常关键，优异性能的球头材料能够保证良好的操控性和容错值、更
高的击球精准度和更远的击球距离。采用高能球磨+冷等静压+真空烧结+热挤压工艺制备了细晶纯 Ti
材料，采用扫描电镜（SEM）和拉伸试验机对未挤压态和挤压态纯 Ti 材料的组织及性能进行了研究。结
果表明：高能球磨 5 h 后，球形 Ti 粉末转化为细小的纳米碎颗粒，平均粒径由 25 μm 降低至 5 μm 以下，且
分散均匀。挤压态细晶纯 Ti 的组织晶粒得到了充分细化，并且晶粒内部的微空隙缺陷消失。此外，挤压
态细晶纯 Ti 的抗拉强度、屈服强度、伸长率相比于未挤压态均提高约 16.1%、19.7% 和 16.3%。断口形貌
显示挤压态细晶纯 Ti 的断口韧窝数量更多，而且深度小而均匀，撕裂棱分布的更加密集。
Abstract：The high-strength face of the golf head is very significant, and the high-performance ball head material
can ensure good control and forgiveness, higher hitting accuracy and longer hitting distance. In this paper, the finegrained pure Ti materials were fabricated by high-energy ball milling, cold compaction, vacuum sintering and hot
extrusion, and the microstructure and properties of as-unextruded and as-extruded fine-grained pure Ti were sys‐
tematically studied by scanning electron microscope（SEM）and tensile testing machine. The results show that the
spherical Ti powders are transformed into fine nano-crushed particles after high-energy ball milling for 5 hours,
and the average particle size is reduced from 25 μm to less than 5 μm and the dispersion is uniform. The microstruc‐
ture and grains of as-extruded fine-grained pure Ti are adequately refined and the micro-void defects in the grains
disappeare. In addition, the tensile strength, yield strength and elongation of the as-extruded fine-grained pure Ti
are increased by about 16.1%, 19.7% and 16.3% compared with the as-unextruded. The fracture morphology shows
that compared with before extrusion, the number of fracture dimples of the as-extruded fine-grained pure Ti is
more, and the depth is small and uniform, and the distribution of tearing edges is more dense.
杨 洪，张浩霖，周 正. 高尔夫球头用细晶纯Ti材料的组织及性能研究[J]. 粉末冶金工业, 2023, 33(03): 38-43.
YANG Hong，ZHANG Haolin，ZHOU Zheng. Microstructure and properties of fine-grained pure Ti materials for golf heads. Powder Metallurgy Industry, 2023, 33(03): 38-43.
2023, Vol. 33 
