热处理对高级高强钢组织和性能的影响

IF 1.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Technology Pub Date : 2023-05-16 DOI:10.1080/02670836.2023.2212538

S. Chen, R. Mostert, M. Aarnts

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引用次数: 0

摘要

研究了等温回火时间对两种第三代高强钢的组织和性能的影响，分别用于等温回火(TBF)和淬火分配(QP)。工艺参数是根据现有连续退火或镀锌生产线的产能来选择的。在模拟循环过程中，虽然碳化物在较短的过时效时间内开始形成，但仍有超过10%的残余奥氏体可以稳定下来。TBF的抗拉强度与总伸长率之比高于QP，且随着等温时间的增加，TBF达到峰值，而QP则单调降低。QP的扩孔能力高于TBF，且随着等温时间的延长，TBF和QP的扩孔能力均达到峰值。

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Heat treatment effects on microstructure and properties of advanced high-strength steels

The effects of the austempering time on the microstructure and properties of two third-generation high-strength steels are investigated for austempering (TBF), and for quenching and partitioning (QP). The process parameters are chosen according to the capacity of an existing continuous annealing or galvanising line. More than 10% retained austenite can be stabilised although carbides start to form at short overageing times with the simulated cycles. The product of the tensile strength and total elongation for TBF is higher than for QP, and it peaks with increasing austempering time for TBF, but decreases monotonously for QP. The hole expansion capacity for QP is higher than for TBF and it peaks with austempering time for both TBF and QP.

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来源期刊

Materials Science and Technology 工程技术-材料科学：综合

CiteScore

2.70

自引率

5.60%

发文量

审稿时长

3 months

期刊介绍：《Materials Science and Technology》（MST） is an international forum for the publication of refereed contributions covering fundamental and technological aspects of materials science and engineering.