钛及钛合金丝材测定Rp0.2时横梁位移速率的选取

Selection of cross beam displacement rate for Rp0.2 determination of titanium and its alloy wires

选取规格为4.0mm的TC4材料进行室温拉伸试验,在拉伸第一阶段通过选取不同的横梁位移速率来分析材料在试验中应变速率的变化,结合国标GB/T228.1-2010得到钛及钛合金丝材在测定Rp0.2时横梁位移速率的选取方法。

The selection of specifications for tensile testing for 4.0mm TC4 materials, in the first stage stretching by selecting different beam displacement rate to analyze the material strain rate changes in the test, according to the national standard GB/T228.1-2010 methods for titanium and titanium alloy wire beam in the determination of Rp0.2 displacement rate.