热处理对履带用奥氏体-贝氏体钢38CrMnSi2RE组织和性能的影响

特殊钢 ›› 2008, Vol. 29 ›› Issue (2): 21-22.

热处理对履带用奥氏体-贝氏体钢38CrMnSi2RE组织和性能的影响

沈大东¹ 黄志求²金宝士²

1佳木斯大学科技处，佳木斯154007;2佳木斯大学材料科学与工程学院，佳木斯154007

出版日期:2008-04-01 发布日期:2023-01-18
作者简介:沈大东(1950-),男，高级工程师，1977年黑龙江工学院毕业，抗磨金属材料研究。
基金资助:
黑龙江省科技攻关项目(CC06A214)、黑龙江省教育厅科学技术项目(11511385)

Effect of Heat Treatment on Structure and Properties of Austenite- Bainite Steel 38CrMnSi2RE for Carterpillar Band

Shen Dadong¹,Huang Zhiqiu^²and Jin Baoshi²

1 Science and Technology Department,Jiamusi University,Jiamusi 154007;
2 College of Material Science and Engineering, Jiamusi University,Jiamusi 154001

Published:2008-04-01 Online:2023-01-18

摘要/Abstract

摘要： 研究了880～900 ℃奥氏体化，280～340 ℃盐浴等温淬火对拖拉机履带用铸态低合金奥氏体-贝氏体钢38CrMnSi2RE(%:0.35~0.42C 、1.5~2.0Si 、1.0~1.5Mn 、1.0Cr,0.2RE)力学性能和耐磨性的影响。试验结果表明，38CrMnSi2RE钢最佳热处理工艺为880～900 ℃奥氏体化，310℃等温60 min。该钢抗拉强度≥1100 MPa,伸长率=7.9%,HRC硬度值≥44,冲击值≥88 J/cm²。38CrMnSi2RE钢履带板的使用寿命为ZGMn13钢的1.69倍。

关键词: 履带板奥氏体-贝氏体钢38CrMnSi2RE等温淬火力学性能耐磨性

Abstract: The effect of austenitizing at 880～900 ℃,and austempering at 280～340 ℃ in salt bath on mechanical properties and wear resistance of as-cast low alloy austenite-bainite steel 38CrMnSi2RE(%:0.35～0.42C,1.5~2.0Si, 1.0~1.5Mn,1.0Cr 、0.2RE)for carterpillar band of tractor has been studied. Test results indicated that the optimum heat treatment process was austenitizing at 880～900 ℃ and austempering at 310 ℃ for 60 min to get the tensile strength of steel ≥1100MPa,elongation =7.9%,HRC hardness value≥44,impact value≥88 J/cm² .The service life of as-cast steel 38CrMnSi2RE carterpillar band was 1.69 time as long as that of steel ZGMn13.

Key words: Carterpillar , Band,Austenite-bainite , Steel , 38CrMnSi2RE,Austempering,Mechanical , Properties, Wear Resistance

沈大东黄志求金宝士. 热处理对履带用奥氏体-贝氏体钢38CrMnSi2RE组织和性能的影响[J]. 特殊钢, 2008, 29(2): 21-22.

Shen Dadong, Huang Zhiqiu and Jin Baoshi. Effect of Heat Treatment on Structure and Properties of Austenite- Bainite Steel 38CrMnSi2RE for Carterpillar Band[J]. Special Steel, 2008, 29(2): 21-22.