Surface Topography: Metrology and Properties ( IF 2.7 ) Pub Date : 2021-07-16 , DOI: 10.1088/2051-672x/ac11c8 M Abeens , K Thirumavalavan , E Rajasekaran , R Muruganandhan , M Premnath , D Sarukasan
Severe surface Plastic deformation plays a vital role in materials and several investigations are made on this route. Though, the influence of stacking fault energy of materials on severe surface plastic deformation is not done yet. This investigation studied the optimization of process parameter of SMTP with varying stacking fault energies on wear characteristics of AA6061 and ETP-Copper materials. Also, this investigation on reduction in the stacking fault energy contributes wear characterization were determined. The process parameters such as size of shots, speed of revolution of shaft and duration of treatment chosen which are directly associated to the energy imparted to the surface to induce high strains, accumulation of dislocations and grain refinement that leads to enhancement in strength of material surface. The predicted optimal vales of AA6061 are 4 mm shots, 750 rpm speed of revolution and 45 min duration and ETP-Copper are 4 mm shots, 500 rpm speed of revolution and 60 min duration. The wear volume loss of AA6061, a wear volume loss of 14.5854 10−5 cm3 is found, which 58% is lower than the wear volume loss of the untreated sample. The wear volume loss of ETP-Copper is 9.5366 10−5 cm3, which is 58% lower than the wear volume loss of the untreated sample.
中文翻译:
堆垛层错能对AA6061合金和ETP-铜表面机械处理工艺影响的研究
严重的表面塑性变形在材料中起着至关重要的作用,对此路线进行了多项研究。然而,材料的层错能对严重表面塑性变形的影响尚未完成。本研究研究了不同层错能的 SMTP 工艺参数对 AA6061 和 ETP-Copper 材料磨损特性的优化。此外,还确定了对降低堆垛层错能有助于磨损表征的研究。工艺参数,例如丸粒的大小、轴的旋转速度和选择的处理持续时间,这些参数与施加到表面的能量直接相关,以引起高应变、位错积累和晶粒细化,从而提高材料表面的强度. AA6061 的预测最佳值是 4 毫米弹丸、750 rpm 转速和 45 分钟持续时间,ETP-Copper 是 4 毫米弹丸、500 rpm 旋转速度和 60 分钟持续时间。AA6061的磨损量损失,磨损量损失为14.5854 10发现-5 cm 3,这比未处理样品的磨损体积损失低58%。ETP-Copper的磨损体积损失为9.5366 10 -5 cm 3,比未处理样品的磨损体积损失低58%。