摘要
对25MnVK的零保温淬火工艺进行了研究,并对显微组织和力学性能进行了分析。结果表明：在880~940℃,硬度、强度、伸长率和耐磨性随淬火温度的升高而增加,超过940℃则随淬火温度的升高而降低,在940℃淬火获得最佳力学性能,零保温淬火后的显微组织是细小的板条马氏体。在120 N、300 r/min、1200 s的试验条件下,940℃淬火后的试样磨损质量损失最小,具有优良的抗磨损性能。
The zero time holding quenching process of 25 MnVK was studied. The microstructure and mechanical properties of the steel were analyzed. The results show that, in the range of 880 ℃-940 ℃, the hardness, strength, elongation and wear resistance of 25 MnVK steel rise along with the increase of quenching temperature, and then begin to fall down above 940 ℃. The best mechanical properties of the steel can be obtained by quenching at 940 ℃. The microstructure of the steel is the finer lath martensite after zero time holding quenching. Under 120 N, 300 r/min,1200 s experimental conditions, the wear mass loss of the sample after quenching at 940 ℃ is least, with excellent wear resistance.
出处
《热加工工艺》
CSCD
北大核心
2014年第18期172-174,共3页
Hot Working Technology
基金
2012年河南省哲学社会科学委托项目(2012-guihua)
关键词
零保温
25MnVK钢
强度
耐磨性
zero time holding
25MnVK steel
strength
wear resistance
作者简介
王冠（1979-），男，河南安阳人，博士研究生，研究方向为矿业管理工程；电话：15514857320；E-mail：1062674208@qq．com
