CAJ | 학술논문

试验结果表明，铸态硅系耐热球铁固溶了一定数量的氢，它随硅原子溶入α-Fe而自发溶入，并在某些晶面形成偏析、导致氢脆。硅脆性与氢脆性的交互作用是硅系耐热球铁脆裂的实质。脆性裂纹多发生于石墨球/金属基体界面，这里也有氢的富集。
시험결과표명，주태규계내열구철고용료일정수량적경，타수규원자용입α-Fe이자발용입，병재모사정면형성편석、도치경취。규취성여경취성적교호작용시규계내열구철취렬적실질。취성렬문다발생우석묵구/금속기체계면，저리야유경적부집。
The experiment has proved that in silicon bearing heat-resisting nodular iron some amount of hydrogen are spontaneously dissolved into α-Fe with silicon,and the segregation of hydrogen on crystal plane causes brittleness.The interaction effect of silicon brittleness and hydrogen brittleness is the essence of brittle cracking of silicon bearing heat-resisting nodular iron.Brittle cracking often occurs at interface between nodular graphite and matrix where hydrogen is enriched.