By experiments of backfire brittleness and stability of low C steel, we knows that adding Boron into the mixing alloy will increase the backfire brittleness and stability of low C steel.

• 通过对加硼的低碳钢淬透性及回火稳定性的实验 ,硼的加入能使调质型低碳钢的淬透性及回火稳定性提高。