Article history: Received 5 July 2012 Received in revised form 25 September 2012 Accepted 29 September 2012 The fatigue crack growth of the nickel-based superalloy Haynes 230 was investigated at room temperature and 900 °C using digital image correlation (DIC). As expected, the crack growth rates at high temperature were much faster than at room temperature. However, the crack closure levels, w...

Polycrystalline materials are generally thought to have grain size distributions that correspond to log-normal. Statistical volume elements can use such geometric shape distributions to simulate single-phase polycrystals. When the log-normal distribution is used for grain size, however, it can give rise to nonphysical large grains that cannot be practically accommodated in finite simulation vol...

In the past 100 years, precipitation strengthening has always been extremely important pathway to resist deformation of material due significantly improving matrix strength. The size deviation degree and space distribution precipitates have a great influence on strength reported by recent experiments, however, this internal mechanism largely ignored incompletely understood until now in nickel-b...

Based on the variation of actual cutting depth during grinding process, a 3D finite element simulation model for nickel-based superalloy GH4169 with single abrasive was initially constructed. Then, morphological evolution chips process studied. In addition, effect and speed chip morphology segmentation frequency were investigated. Finally, experimental results same test parameters verify result...