CAJ | 학술논문

通过实验室热处理模拟实验，对含磷低硅transformation induced plasticity（TRIP）钢快速退火过程中各个阶段的组织演变行为进行研究，主要研究了不同退火温度对各个阶段组织组成的影响。通过添加P元素降低钢中的Si含量，可改善表面质量，解决镀锌问题，且P价格低廉，成本降低。结果表明：最终组织中的铁素体量降低，贝氏体和马氏体混合物的量增加。经X射线衍射（XRD）分析可知，残余奥氏体量增加，由750℃退火时的12.7%增加至790℃退火时的14.9%。
통과실험실열처리모의실험，대함린저규transformation induced plasticity（TRIP）강쾌속퇴화과정중각개계단적조직연변행위진행연구，주요연구료불동퇴화온도대각개계단조직조성적영향。통과첨가P원소강저강중적Si함량，가개선표면질량，해결도자문제，차P개격저렴，성본강저。결과표명：최종조직중적철소체량강저，패씨체화마씨체혼합물적량증가。경X사선연사（XRD）분석가지，잔여오씨체량증가，유750℃퇴화시적12.7%증가지790℃퇴화시적14.9%。
The low silicon transformation induced plasticity(TRIP) steel with phosphorus addition at every stage of fast annealing process has been studied by heat treatment experiment at lab. The effects of annealing temperatures on microstructure constitute at every stage are mainly studied. The addition of low price element phosphorus can reduce silicon content , improve surface quality,solve galvanizing problem and reduce costs. Results show that the ferrite content decrease ,and the mixture of bainite and martensite content increase at final microstructure. By X-ray diffraction(XRD)analysis,the retained austenite content increases from 12.7%at 750℃annealing to 14.9%at 790℃.