CAJ | 학술논문

利用Q-P-T和Q-P工艺对ZG26SiMnMoV钢进行热处理,考察了ZG26SiMnMoV钢处理后的显微组织和力学性能。结果表明, ZG26SiMnMoV钢Q-P-T处理后的强度、硬度和显微组织都明显优于 Q-P 工艺,但塑性和韧性没有明显提高。在淬火介质温度40℃,碳分配温度为400℃,分配时间40 s的情况下,强度达到1100 MPa以上,硬度>450 HB,伸长率接近10%,冲击吸收能量达到25 J。碳分配时间的延长在一定范围内将有利于塑性和韧性的提高。
이용Q-P-T화Q-P공예대ZG26SiMnMoV강진행열처리,고찰료ZG26SiMnMoV강처리후적현미조직화역학성능。결과표명, ZG26SiMnMoV강Q-P-T처리후적강도、경도화현미조직도명현우우 Q-P 공예,단소성화인성몰유명현제고。재쉬화개질온도40℃,탄분배온도위400℃,분배시간40 s적정황하,강도체도1100 MPa이상,경도>450 HB,신장솔접근10%,충격흡수능량체도25 J。탄분배시간적연장재일정범위내장유리우소성화인성적제고。
ZG26SiMnMoV steel was treated under the Q-P-T and Q-P processes, and the microstructure and mechanical properties of ZG26SiMnMoV steel were investigated. The results show that through Q-P-T process can obtain higher strength, hardness and better microstructure than that of the Q-P process, but the toughness and ductility are not obviously improved. In the case of the quenching medium temperature at 40 ℃, carbon partitioning temperature at 400 ℃, the partitioning time of 40 s, the strength can reach above 1100 MPa, hardness above 450 HB, the elongation close to 10% and the impact absorbed energy 25 J. The toughness and ductility of ZG26SiMnMoV steel can be improved with prolonging the partitioning time within a certain range.