Tian Liu

TL;DR: In this paper, the weld appearance, microstructure, composition distribution and microhardness of welded joint were investigated with a YLR-6000 fiber laser under Ar protective gas, and the results showed that the narrow and fully penetrated welded joints without marco-defects can be obtained with tightly focused 2kW fiber laser power and 20mm/s welding speed.

TL;DR: In this paper, the microstructure evolution and the nucleation mechanisms of dynamic recrystallization (DRX) were characterized by electron backscattering diffraction (EBSD) technique, and the results showed that relatively higher temperature, lower strain rate and larger true strain were favorable for DRX.

TL;DR: In this paper, the shear-compression deformation of GH4169 superalloy at 1000-1200-C and 0.01-1-s−1 was investigated by physical and numerical simulation based on a specific shearcompression sample (SCS).

TL;DR: In this article, the plastic thermal deformation behaviors of solid solution strengthened Ni-based superalloy Inconel 617B during different temperatures were systematically investigated using a Gleeble-3500 thermal compression simulation machine.

TL;DR: In this article, the flow stress behavior of an innovative spray-formed aluminum-copper-lithium alloy was successfully investigated via isothermal compression tests under a deformation temperature range of 350-450 °C (25 °C interval) and a strain rate range of 0.01, 0.1, 1, 5, 10 s−1.