CAJ | 학술논문

采用慢应变速率拉伸方法，研究了Fe-Si试样在空气中拉伸、动态充氢拉伸及在空气中预应变一定量后动态充氢拉伸等实验条件下的断裂过程．结果表明，只有在充氢过程中进行塑性变形才能引起氢致开裂，即塑性变形是氢致开裂的必要条件，氢致开裂过程是氢与位错交互作用的过程．
채용만응변속솔랍신방법，연구료Fe-Si시양재공기중랍신、동태충경랍신급재공기중예응변일정량후동태충경랍신등실험조건하적단렬과정．결과표명，지유재충경과정중진행소성변형재능인기경치개렬，즉소성변형시경치개렬적필요조건，경치개렬과정시경여위착교호작용적과정．
The fracture behaviors during hydrogen charging of Fe-3%Si single crystal was studied by lowstrain rate tension. The experiments included tension in air, tension during dynamically charging andcharging after certain pre-strain. The results indicated that hydrogen induced cracking can occur onlywhen the sample deformed during charging. That is, deformation is a necessary condition for hydrogeninduced cracking and hydrogen induced cracking results from the interaction between hydrogen anddislocation.