Evidence map›Paper›PMID 41515673›Full record

ArticleMaterials (Basel, Switzerland)2025

Effect of Silicon and Continuous Annealing Process on the Microstructure, Mechanical Properties, and Hydrogen Embrittlement of DP1500 Steel.

Wei Li, Yu Tang, Boyu Cao, Yeqian Jiang, Yang Shen, Wei Li, Ke Zhang

Abstract read
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In one paragraph

Article in Materials (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Wei LiSchool of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China.
Yu TangSchool of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China.
Boyu CaoSchool of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China.
Yeqian JiangSchool of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China.
Yang ShenSchool of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China.
Wei LiSchool of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China.ORCID 0000-0001-8224-0590
Ke ZhangSchool of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China.

Funding

the National Natural Science Foundation of China no. 51971148
6 · The paper itself

Abstract

Dual-phase (DP) steels are widely used in automotive structures due to their excellent strength-ductility balance. This study examines how silicon content and continuous annealing parameters affect the microstructure, mechanical properties, and hydrogen embrittlement (HE) behavior of DP1500 steel. Two steels, 05DP (0.5% Si) and 15DP (1.5% Si), were processed under annealing temperatures of 800-850 °C and over-aging temperatures of 240-300 °C. Higher annealing temperatures increased austenite formation and produced more martensite after cooling, leading to higher strength but reduced ductility at 850 °C due to martensite coarsening. Increasing the over-aging temperature coarsened carbides and reduced strength yet stabilized retained austenite and improved ductility through the TRIP effect. An increase in silicon content suppressed carbide precipitation, promoted carbon enrichment in austenite, refined the ferrite-martensite structure, and significantly enhanced both strength and elongation. Consequently, 15DP steel exhibited superior mechanical properties compared to 05DP steel, exhibiting 90-100 MPa higher tensile strength (+6.2-7.0%), 55-65 MPa higher yield strength (+5.3-6.2%), and 1.4-1.8 percentage points higher total elongation (+10-14%), resulting in a 16-20% increase in the strength-ductility balance (Rm × A). However, due to the relatively high hydrogen embrittlement susceptibility of fresh martensite formed either by the TRIP effect during deformation or after over-aging, 15DP steel did not exhibit substantially improved HE resistance despite its higher retained austenite fraction.

Indexed as

continuous annealing processdual-phase steelhydrogen embrittlementmechanical propertiesretained austenitesilicon

Identifiers

PMID41515673
PMCPMC12786443

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