14MnMoV钢的沉淀硬化效应  

Precipitate hardening effect of 14MnMoV steel

作　　者：左传付[1] 孟亚峰[1] 王志宏[1] 汤峰[2] 

机构地区：[1]鹤壁职业技术学院机电工程学院,河南鹤壁458030 [2]中原工学院材料与化学工程学院,河南郑州450007

出　　处：《金属热处理》2014年第3期126-129,共4页Heat Treatment of Metals

摘　　要：对14MnMoV钢中粒状贝氏体的形态和回火沉淀硬化效应进行了研究。结果表明,随淬火温度升高,粒状贝氏体小岛变细,数量增多,方向性明显,且小岛在室温下为富碳的奥氏体;粒状贝氏体的回火稳定性高于板条马氏体,粒状贝氏体的沉淀硬化效应也高于板条马氏体,且620℃回火时,产生的硬化效应最高,可达10 HRC。Granular bainite morphology and precipitate hardening effect during tempering process of 14MnMoV steel were studied.The results show that with austenitizing temperature increasing , the islets of the granular bainite become thin , and the amount increase , its directionality is obvious and the islet is carbon enriched austenite at room temperature .The tempering stability and precipitate hardening effect of granular bainite are higher than those of lathy martensite , and tempered at 620 ℃, the hardening effect of granular bainite can reach a maximum value, up to 10 HRC.

关 键 词：14MnMoV钢 沉淀硬化效应 粒状贝氏体 

分 类 号：TG151.1[金属学及工艺—热处理]