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

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

更新时间：2026-01-21

- Effect of Heat Treatment on Structure and Properties of Austenite- Bainite Steel 38CrMnSi2RE for Carterpillar Band
- Special Steel Vol. 29, Issue 2, Pages: 21-22(2008)
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- Online First：18 January 2023，
  
  Published：18 January 2008
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Effect of Heat Treatment on Structure and Properties of Austenite- Bainite Steel 38CrMnSi2RE for Carterpillar Band[J]. Special Steel, 2008, 29(2): 21-22.
DOI：

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

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。

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.

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