14Cr17Ni2钢中铁素体含量的控制工艺研究  

Research on the Controlling Process of Ferrite Content in 14Cr17Ni2 Steel

作　　者：杨尚超 崔超群 郭斌杰 毛喆 黄红武 YANG Shangchao;CUI Chaoqun;GUO Binjie;MAO Zhe;HUANG Hongwu(Heat Meter Factory of Zhengfei Company in Aviation Industry,Zhengzhou 450005,Henan,China;MilitaryRepresentative Office of Air Force Equipment Department in Zhengzhou,Zhengzhou 450005,Henan,China)

机构地区：[1]航空工业郑飞公司热表厂,河南郑州450005 [2]空军装备部驻郑州地区军事代表室,河南郑州450005

出　　处：《热处理技术与装备》2025年第1期6-9,20,共5页Heat Treatment Technology and Equipment

摘　　要：阐述了14Cr17Ni2钢中铁素体含量过高对工件淬火后硬度和冲击性能的影响。铁素体含量的关键影响因素为原材料和热处理工艺,原材料残留铁素体含量过多会使工件热处理后铁素体含量高;淬火温度较高,会导致γ+α相区产生过多的铁素体组织,且重复淬火会使铁素体长大。为了控制热处理后14Cr17Ni2钢的铁素体含量,可以通过明确原材料技术协议,要求钢厂将14Cr17Ni2钢中铁素体含量控制在6%以下;将淬火温度由原来的950~1050℃调整为980~1010℃,并对重复淬火提出控制要求;加强设计工艺性审查,对于尺寸超过100 mm的14Cr17Ni2工件,设计时选取铁素体含量少的沉淀硬化型不锈钢进行代替。The influence of high ferrite content in 14Cr17Ni2 steel on hardness and impact property of workpiece after quenching is described.The key influencing factors of ferrite content are raw materials and heat treatment process.Excessive residual ferrite content of raw materials will lead to high ferrite content after heat treatment.High quenching temperature will lead to excessive ferrite structure in theγ+αphase region,and repeated quenching will make the ferrite grow larger.In order to control the ferrite content in 14Cr17Ni2 steel after heat treatment,the raw material technical agreement can be clarified,requiring steel mills to control the ferrite content in 14Cr17Ni2 steel below 6%.The quenching temperature is adjusted from the original 950-1050℃to 980-1010℃,and the control requirements for repeated quenching are put forward.Strengthen the design process review,for 14Cr17Ni2 workpieces with dimensions exceeding 100 mm,choose precipitation hardening stainless steel with less ferrite content to replace the design.

关 键 词：14Cr17Ni2钢 铁素体含量 冲击韧性 热处理参数 

分 类 号：TG176.12[金属学及工艺—金属表面处理]