Effect of Mg on Structure and Mechanical Properties of Hot-Working-Die Steel H13

王亮亮; 李晶; 李勇勇; 宁博; 谭兵; 陈雪梅; 张波

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Effect of Mg on Structure and Mechanical Properties of Hot-Working-Die Steel H13

更新时间：2026-01-21

- Effect of Mg on Structure and Mechanical Properties of Hot-Working-Die Steel H13
- Special Steel Vol. 34, Issue 5, Pages: 68-70(2013)
- 作者机构：
  
  1. 北京科技大学钢铁冶金新技术国家重点实验室,冶金与生态工程学院,北京,100083
  2. 广州市冶金工业研究所,广州,510440
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：06 May 2013，
  
  Online First：22 September 2022，
  
  Published：22 September 2013
- 稿件说明：
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王亮亮, 李晶, 李勇勇, et al. Effect of Mg on Structure and Mechanical Properties of Hot-Working-Die Steel H13[J]. Special Steel, 2013, 34(5): 68-70.
DOI：

王亮亮, 李晶, 李勇勇, et al. Effect of Mg on Structure and Mechanical Properties of Hot-Working-Die Steel H13[J]. Special Steel, 2013, 34(5): 68-70. DOI：

摘要

试验钢的生产流程为2 t中频感应炉-200 kg电渣重熔(Φ180 mm)-退火-镦粗至Φ325 mm-球化退火-1050℃淬火-590℃回火

炉冷。试验研究了0~0.0010%Mg对热作模具钢H13(/%:0.40~0.41C、0.98~1.01Si、0.29Mn、4.95~5.08Cr、1.21~1.22Mo、0.91-0.93V、0.023~0.027P、0.006~0.007S)组织和力学性能的影响。结果表明

随钢中Mg含量由0提高至0.0010%时

试验模具钢H13的平均抗拉强度和HRC硬度值分别从1 617.6 MPa和45.7提高至1 702.9 MPa和47.8;Mg可以增加钢中回火马氏体的稳定性

高温回火后含Mg模具钢H13的组织中出现大量回火屈氏体

而且部分碳化物在Mg-Al夹杂物周围析出

成球形

尺寸小于10μm

有利于改善钢的性能。

Abstract

The production flow sheet for test steel is 2 t medium frequency induction furnace-200 kg ESR (Φ180 mm) -annealing-upset forging to Φ325 mm-spheroidal annealing-quenching at 1050 ℃-tempering at 590 ℃，furnace cooling. The effect of 0 - 0.001 0% Mg on structure and mechanical properties of hot-working-die steel H13 (/% : 0.40-0.41C

0.98-1.01Si

0.29Mn

4.95-5.08Cr

1.21-1.22Mo

0.91-0.93V

0.023-0.027P

0.006-0.007S) has been tested and studied. Results show that with increasing Mg content in steel from 0 to 0. 0010%

the average tensile strength and HRC value of test die steel H13 increases respectively from 1617.6 MPa and 45.7 to 1702.9 MPa and 47.8 ； Mg is available to increase the stability of tempered martensite in steel

in high temperature tempered die steel H13 containing Mg

a lot of tempering troostite occurs in structure and partial globular carbides with size less than 10 μm precipitate around Mg-Al inclusions

it is favourable to improvement of performance of steel.

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