通过实验和有限元计算研究了条状夹杂物对0Cr16Ni5Mo钢中氢扩散过程的影响.结果表明:氢扩散在含条状夹杂物的钢中呈各向异性,当条状夹杂物长度与氢渗透方向平行时,夹杂物中的氢呈梯度分布可以加速氢的扩散,氢在钢中的表观扩散系数会明显增大;当条状夹杂长度与氢渗透方向垂直时,夹杂物发挥对氢的陷落作用而使氢在钢中的表观扩散系数会降低.此外,条状夹杂物的变形延伸量也会影响氢的扩散,在与夹杂物长度平行的方向上,夹杂物的变形量越大,氢表观扩散系数和扩散通量越大.
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