Effects of grain refinement and residual elements on hot tearing in aluminum castings
作者: D. Benny KarunakarRam Naresh RaiSuprakash PatraG. L. Datta
作者单位: 1Mechanical & Industrial Engineering Department, Indian Institute of Technology
2Mechanical Engineering Department, NERIST
3CWISS, Indian Institute of Technology
4Mechanical Engineering Department, Indian Institute of Technology
刊名: The International Journal of Advanced Manufacturing Technology, 2009, Vol.45 (9-10), pp.851-858
来源数据库: Springer Nature Journal
DOI: 10.1007/s00170-009-2037-4
关键词: Hot tearingAl–1% Sn alloyGrain refinementResidual elements
英文摘要: Abstract(#br)In the present work, some investigations have been carried out on hot tears in the Al–1 wt.% Sn alloy, with the objective of preventing hot tearing in aluminum castings. Al–1Sn alloy is extremely prone to hot tearing due to its long freezing range and is an ideal model for studying hot tearing. Experiments were conducted with varying grain refiner (Al–5Ti–1B) percent and pouring temperature. Grain refiner was added to the melt up to 3.0% by weight, which is the conventional limit for grain refiner addition. However, it was found that the maximum addition of grain refiner could not prevent hot tearing, which contradicts the conclusions of some earlier researchers. A mathematical model developed from the experimental data (using regression analysis) has indicated that, among...
全文获取路径: Springer Nature  (合作)

  • tearing 裂开
  • refinement 精制
  • aluminum 
  • castings 铸造物
  • residual 残留的
  • grain 颗粒
  • elements 初步