CAJ | 학술논문

采用不同的伪渗碳热处理工艺,研究了新型贝氏体渗碳钢的组织和力学性能及工业渗碳试验非渗层的组织.结果表明,常规正火热处理和不同的伪渗碳热处理后贝氏体渗碳钢具有良好的强韧性配合,伪渗碳工艺实验材料的组织和渗碳工艺中非渗层组织没有出现过分长大及粗化的情况.920℃×10 h降温至880℃空冷+680℃空冷+加热880℃空冷+200℃回火伪渗碳处理和渗碳热处理,实验材料才可获得良好的强韧性.
채용불동적위삼탄열처리공예,연구료신형패씨체삼탄강적조직화역학성능급공업삼탄시험비삼층적조직.결과표명,상규정화열처리화불동적위삼탄열처리후패씨체삼탄강구유량호적강인성배합,위삼탄공예실험재료적조직화삼탄공예중비삼층조직몰유출현과분장대급조화적정황.920℃×10 h강온지880℃공랭+680℃공랭+가열880℃공랭+200℃회화위삼탄처리화삼탄열처리,실험재료재가획득량호적강인성.
The microstructure and mechanical properties of the new type bainite steel were studied by different pseudo-carburizing processes and the microstructure abtained by industrialized carburizing was also studied. The results show that carburizing bainite steel has better combination of strength and toughness by normalizing heat treatment and different pseudo-carburizing heat treatment, the microstructure obtained by pseudo-carburizing process and non-carburized layer in carburizing treatment has not excessive grain growth and grain coarsening, the testing material has better strength and toughness by pseudo-carburizing and carburizing treatment at 920℃× 10 h + 880 ℃ x 1 h aft-cooling + 680 ℃× 3 h aft-cooling +880 ℃×1 h air-cooling+ 200 ℃ tempering.