冷却速度对热轧后TC4钛合金小棒材组织与性能的影响

Influence of Cooling Rate on Microstructure and Performance of TC4 Titanium Bars after Hot Rolling

利用φ450型热轧机对TC4钛合金小棒材进行热连轧,并采取空冷、层流冷却以及超快速水冷方式进行冷却。选取不同冷却速度下小棒材的试样对其进行组织与性能的对比分析研究。结果表明,冷却速度越快,越能获得较多的相组织,同时也具有更好的综合性能。

The TC4 laminar cooling and to carry comparison rate is, the more be achieved. titanium alloy bars are hot rolled by φ450 ultra-fast water cooling. Samples of small hot rolling mill, and cooled by air cooling, bars at different cooling rates are selected study on microstructure and performance. The results show that as faster the cooling phase structure can be obtained, meanwhile, better comprehensive performance can