38MnVS非调质钢汽车半轴的研制
Development of 38MnVS Non-quenched and Tempered Steel Automobile Semi-Axle
摘 要
开发了38MnVS非调质钢汽车半轴，研究了热锻后冷却速率对38MnVS非调质钢半轴显微组织、力学性能的影响，并与42CrMo调质钢半轴进行了对比，讨论了半轴疲劳寿命的主要影响因素。结果表明：通过热锻后风冷可减小38MnVS非调质钢中铁素体尺寸和珠光体片层间距，冲击韧性由空冷后的16.84 J提高到风冷后的43.74 J；38MnVS非调质钢具有良好的淬透性；38MnVS非调质钢半轴的疲劳寿命可达到42CrMo调质钢半轴的水平，并且通过减小花键模数、增大花键齿根过渡圆角半径以及适当地增加硬化层深度可将38MnVS非调质钢半轴的疲劳寿命提高到30万次以上，可以代替42CrMo调质钢半轴。
非调质钢
淬透性
疲劳寿命
显微组织
semi-axle
non-quenched and tempered steel
hardenability
fatigue life
microstructure
Abstract
The 38MnVS non-quenched and tempered steel semi-axle was developed. The effect of cooling rate after hot forging on microstructure and mechanical properties of 38MnVS non-quenched and tempered steel semi-axle was studied and cpmpared with 42CrMo quenched and tempered semi-axle. The main factors affecting the fatigue life of the semi-axle were discussed. The results show that the size of ferrite and pearlite lamellar spacing of 38MnVS non-quenched and tempered steel reduced by force air cooling after hot forging, and the impact toughness increased from 16.8 J after air cooling to 43.7 J after force air cooling. 38MnVS non-quenched and tempered steel had good hardenability. The fatigue life of 38MnVS non-quenched and tempered steel semi-axle was equivalent to that of the 42CrMo quenched and tempered steel semi-axle, and the fatigue life of 38MnVS non-quenched and tempered steel semi-axle could reach more than 300 000 times by reducing the spline modulus, increasing spline root fillet radius and increasing the depth of the hardened layer appropriately that could replace 42CrMo quenched and tempered steel semi-axle.
中图分类号 U465.1 DOI 10.11973/jxgccl201711010
所属栏目 材料性能及应用
基金项目 江苏省产学研前瞻性联合研究项目（BY2015009-02）
收稿日期 2016/11/14
修改稿日期 2017/10/13
网络出版日期
作者单位点击查看
备注孙华(1968-),女,江苏南京人,高级工程师,博士
引用该论文: SUN Hua,LI Shen,ZHOU Lei,MAO Xiangyang,ZHAO Xiuming. Development of 38MnVS Non-quenched and Tempered Steel Automobile Semi-Axle[J]. Materials for mechancial engineering, 2017, 41(11): 53～58
孙华,李慎,周蕾,毛向阳,赵秀明. 38MnVS非调质钢汽车半轴的研制[J]. 机械工程材料, 2017, 41(11): 53～58
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】谢维立,沈正元,吴慧琴,等.非调质钢的力学性能及其应用[J].热处理,2013(4):1-8.
【2】MURAKAMI T, HATANO H, MIYAMOTO G, et al. Effects of ferrite growth rate on interphase boundary precipitation in V microalloyed steels[J]. ISIJ International,2012, 52(4):616-625.
【3】杨岁权.非调质钢在汽车行业的应用研究[J].科技创新与应用,2013(29):91.-91
【4】刘栋林,谭利,刘攀,等.38MnVS6非调质钢在汽车转向节上的应用[J].热加工工艺,2014,43(2):80-81.
【5】应善强,曹正.汽车后桥半轴用高性能非调质钢的开发及应用研究[J].汽车技术,2009(5):53-56.
【6】焦孟旺,魏元生,刘攀,等.非调质钢C38MnNS汽车半轴的研制开发[J].汽车工艺与材料,2014(1):66-67.
【7】陈思联,惠卫军,邵成伟,等.控制冷却对中碳高钒非调质钢组织性能的影响[J].钢铁,2015(8):77-82.
【8】赵秀明,张进,惠卫军,等.锻后控冷对38MnVS非调质钢晶内铁素体形成及韧性的影响[J].材料热处理学报,2013,34(11):114-118.
【9】许磊,刘国权,王安东.等温处理对中碳含钒微合金钢晶内铁素体形成的影响[J].材料热处理学报,2008,29(3):39-44.
【10】张跃, 黄运华, 翟浩,等. 微合金化非调质钢强韧化机理研究[J].机械工程材料,2005, 29(9):8-11.
【11】董应虎,张英建,魏晓晓,等.控轧控冷工艺对F40MnV非调质钢组织及性能的影响[J].材料热处理学报,2012,33(7):94-99.
【12】LI M L, WANG F M, LI C R,et al. Effects of cooling rate and Al on MnS formation in medium-carbon non-quenched and tempered steels[J].International Journal of Minerals, Metallurgy and Materials,2015, 22(6):589-597.
【2】MURAKAMI T, HATANO H, MIYAMOTO G, et al. Effects of ferrite growth rate on interphase boundary precipitation in V microalloyed steels[J]. ISIJ International,2012, 52(4):616-625.
【3】杨岁权.非调质钢在汽车行业的应用研究[J].科技创新与应用,2013(29):91.-91
【4】刘栋林,谭利,刘攀,等.38MnVS6非调质钢在汽车转向节上的应用[J].热加工工艺,2014,43(2):80-81.
【5】应善强,曹正.汽车后桥半轴用高性能非调质钢的开发及应用研究[J].汽车技术,2009(5):53-56.
【6】焦孟旺,魏元生,刘攀,等.非调质钢C38MnNS汽车半轴的研制开发[J].汽车工艺与材料,2014(1):66-67.
【7】陈思联,惠卫军,邵成伟,等.控制冷却对中碳高钒非调质钢组织性能的影响[J].钢铁,2015(8):77-82.
【8】赵秀明,张进,惠卫军,等.锻后控冷对38MnVS非调质钢晶内铁素体形成及韧性的影响[J].材料热处理学报,2013,34(11):114-118.
【9】许磊,刘国权,王安东.等温处理对中碳含钒微合金钢晶内铁素体形成的影响[J].材料热处理学报,2008,29(3):39-44.
【10】张跃, 黄运华, 翟浩,等. 微合金化非调质钢强韧化机理研究[J].机械工程材料,2005, 29(9):8-11.
【11】董应虎,张英建,魏晓晓,等.控轧控冷工艺对F40MnV非调质钢组织及性能的影响[J].材料热处理学报,2012,33(7):94-99.
【12】LI M L, WANG F M, LI C R,et al. Effects of cooling rate and Al on MnS formation in medium-carbon non-quenched and tempered steels[J].International Journal of Minerals, Metallurgy and Materials,2015, 22(6):589-597.
相关信息
