Microstructure characteristics, strengthening and toughening mechanism of rolled and aged multilayer TWIP/maraging steels

Yu, Wenxing; Liu, B.X.; He, Jun; Chen, C.X.; Fang, Wei; Yin, Fuxing

doi:10.1016/j.msea.2019.138426

Cited by 27 publications

(10 citation statements)

References 45 publications

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“…The traditional medium-and high-carbon alloy steels can be regarded as internal nano-sized carbide strengthening steels [41] . In general, uniform dispersion and precipitation of in-situ nanoparticles can be achieved by optimization of the heat treatment process, deformation induced precipitation, and alloying [42,43] . Optimization of the heat treatment process is the main method to control the precipitation and distribution of nanoparticles.…”

Section: Internal Nanoparticle Methodsmentioning

confidence: 99%

Application of nanoparticles in cast steel: An overview

et al. 2020

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The innovative and environmentally friendly methodologies for comprehensively enhancing the performances of high-strength steels without damage to plasticity, toughness and heat/corrosion/fatigue resistance are being developed. In recent years, nanoparticles elevate the field of high-strength steel. It is proposed that nanoparticles have the potential to replace conventional semi-coherent intermetallic compounds, carbides and alloying to optimize the steel. The fabrication process is simplified and the cost is lower compared with the traditional methods. Considerable research effort has been directed towards high-performance cast steels reinforced with nanoparticles due to potential application in major engineering. Nanoparticles are found to be capable of notably optimizing the nucleation behavior and precipitate process. The prominently optimized microstructure configuration and performances of cast steel can be acquired synchronously. In this review, the lattice matching and valence electron criterion between diverse nanoparticles and steel are summarized, and the existing various preparation methods are compared and analyzed. At present, there are four main methods to introduce nanoparticles into steel: external nanoparticle method, internal nanoparticle method, in-situ reaction method, and additive manufacturing method. These four methods have their own advantages and limitations, respectively. In this review, the synthesis, selection principle and strengthening mechanism of nanoparticles in cast steels for the above four methods are discussed in detail. Moreover, the main preparation methods and microstructure manipulation mechanism of the steel reinforced with different nanoparticles have been systematically expatiated. Finally, the development and future potential research directions of the application of nanoparticles in cast steel are prospected.

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Section: Internal Nanoparticle Methodsmentioning

confidence: 99%

Application of nanoparticles in cast steel: An overview

et al. 2020

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“…Over the past century and a half, with the development of aerospace, automotive and shipbuilding industries, there has been an urgent demand for lightweight, high-strength and high-toughness materials. Materials scientists adjusted artificially the alloy element and chemical compositions, and regulated microstructure and substructure, and with the aid of heat treatment and hot working, a series of novel steels with high performance emerged at a historic moment [9][10][11]. Herein, typical high strength steels contain dual-phase (DP) steel, bainite steel, martensite steel and martensitic aging (maraging) steel [12][13][14], as well as high ductile steel, such as strain-induced martensite (TRIP) steel and strain-induced twinning (TWIP) steel [15,16].…”

Section: Introductionmentioning

confidence: 99%

“…Their yield strength and uniform ductility are shown in Figure 1 in detail. It is observed that super-high strength steels have low ductility and toughness, while super-high ductile steels display relatively low yield strength, which always limits their further application and industrial development [10]. Recently, researchers expect to achieve the strengthening and toughening effect by adjusting the relative proportion between hard phase (martensite and bainite) and soft phase (austenite and ferrite).…”

Section: Introductionmentioning

confidence: 99%

“…As shown in Figure 1, the rolled multilayer steel realizes a high strength and ductility balance; all the mechanical properties are located at the right of dotted line. Herein, rolled and aged multilayer TWIP/maraging steel reveals a superior tensile strength of 1527 MPa and total elongation of 23.5% [10]. The fabrication method and mechanical properties of multilayer steels are shown in Figure 2.…”

Section: Introductionmentioning

confidence: 99%

“…The range of tensile strength and fracture elongation of steel compared with those of other metallic materials. Adapted from[10], with permission from publisher: Elsevier, 2019.…”

mentioning

confidence: 99%

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The Deformation Characteristics, Fracture Behavior and Strengthening-Toughening Mechanisms of Laminated Metal Composites: A Review

Gao

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Liu

et al. 2019

Metals

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Multilayer metal composites have great application prospects in automobiles, ships, aircraft and other manufacturing industries, which reveal their superior strength, toughness, ductility, fatigue lifetime, superplasticity and formability. This paper presents the various mechanical properties, deformation characteristics and strengthening–toughening mechanisms of laminated metal matrix composites during the loading and deformation process, and that super-high mechanical properties can be obtained by adjusting the fabrication process and structure parameters. In the macroscale, the interface bonding status and layer thickness can effectively affect the fracture, impact toughness and tensile fracture elongation of laminated metal matrix composites, and the ductility and toughness cannot be fitting to the rule of mixture (ROM). However, the elastic properties, yield strength and ultimate strength basically follow the rule of mixture. In the microscale, the mechanical properties, deformation characteristics, fracture behavior and toughening mechanisms of laminated composites reveal the obvious size effect.

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Strengthen and Toughen the Low‐Alloyed Steel by Direct Tempforming

et al. 2022

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Improving strength without sacrificing toughness is a permanent request for the development of advanced engineering materials. Herein, a novel energy‐saving strategy is developed to obtain strong but tough low‐alloyed steels. A medium‐carbon steel (42CrMo) is used for demonstration. Warm deformation (tempforming) is applied to the hot‐rolled and air‐cooled 42CrMo steel. After tempforming, the microstructure consists of nano‐sized carbides and highly textured ultrafine grains. The tensile strength of the tempformed steels can reach 1.2 GPa, while the impact toughness is higher than 100 J even at temperatures as low as −80 °C, which are one order of magnitude higher than the counterpart steel after tempering. The present work sheds light on the design and fabrication of high‐performance engineering steels with an excellent combination of strength and toughness.

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Microstructure characteristics, strengthening and toughening mechanism of rolled and aged multilayer TWIP/maraging steels

Cited by 27 publications

References 45 publications

Application of nanoparticles in cast steel: An overview

Application of nanoparticles in cast steel: An overview

The Deformation Characteristics, Fracture Behavior and Strengthening-Toughening Mechanisms of Laminated Metal Composites: A Review

Strengthen and Toughen the Low‐Alloyed Steel by Direct Tempforming

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