Kinetics of Martensite/Austenite Decomposition during Tempering of Ultrafine Nano-Bainitic Steels DOI Open Access

Zhiwei Qu,

Min Lei, Guohua Chen

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(11), P. 2690 - 2690

Published: June 2, 2024

In this study, the decomposition of a martensite/austenite (M/A) microconstituent in bainitic steels was analyzed using differential scanning calorimetry (DSC) data conjunction with Kissinger’s and Johnson–Mehl–Avrami–Kolmogorov (JMAK)’s formulas. steel subjected to austempering heat treatment, presence an M/A microstructure adversely affects mechanical properties. According kinetic equations derived, it is observed that after tempering sample at 600 °C for 4000 s, generation each phase reaches its maximum. The SEM images taken before reveal extensive constituent microstructure. proportion decreased significantly from about 10% less than 1% after. Additionally, content residual austenite also reduced nearly zero. These observations are consistent predictions equations.

Language: Английский

Microstructural evolution and strengthening mechanisms of Inconel 718 alloy with 1 wt.% Ti2AlC addition fabricated by laser powder bed fusion DOI
Huihui Wang,

Qianying Guo,

Chong Li

et al.

Materials Science and Engineering A, Journal Year: 2025, Volume and Issue: unknown, P. 147872 - 147872

Published: Jan. 1, 2025

Language: Английский

Citations

5

Comparative study on microstructure, mechanical and high temperature oxidation resistant behaviors of SLM IN718 superalloy before and after heat treatment DOI Creative Commons
Bingqing Chen, Longchao Zhuo,

Yixing Xie

et al.

Journal of Materials Research and Technology, Journal Year: 2024, Volume and Issue: 31, P. 1535 - 1546

Published: June 22, 2024

The microstructure, phase transformation behavior, heat treatment effects, and their impacts on the mechanical properties high-temperature oxidation resistance of IN718 nickel-based superalloy processed by selective laser melting (SLM) both before after was systematically investigated. process involved a two-step aging at 720°C for 8 h plus 620°C 10 with controlled slow cooling rate 10°C/min. Through comprehensive use scanning electron microscopy (SEM), X-ray diffraction (XRD), backscattering (EBSD), transmission (TEM), evolution microstructure its mechanism influence material were revealed. study identified formation γ phase, γ' γ'' δ Laves during SLM forming process. Heat played key role in improving SLM-processed alloy, experimental results showing that performance significantly enhanced treatment. Specifically, exhibited yield strength 1472 MPa, tensile 1608 an elongation 9.2%, which represented increases 76.5%, 38.4%, 16.5% respectively, compared to as-printed alloy. Moreover, 1000°C heat-treated samples improved significantly, weight loss reduced from -0.17 mg/cm2 -0.15 mg/cm2. Microstructural analysis further indicated optimized crystal orientation, promoted more precipitated phases defects, thereby enhancing overall material. This work provides significant scientific insights into understanding optimizing SLM, demonstrating crucial properties.

Language: Английский

Citations

10

Study of Additively Manufactured Inconel 718 with Lanthanum Zirconate Coating DOI
Sumit Choudhary, Vidit Gaur

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 179710 - 179710

Published: March 1, 2025

Language: Английский

Citations

1

Investigation of Wettability and Antimicrobial Activity of Ti-Cu and Ti-Ag Thin Film Metallic Glasses Coated on the Surface of 316L, CoCrW, Ti6Al4V Alloy Substrates Produced by Selective Laser Melting DOI
Çetin ÇİMEN, Mehmet Karakan,

Didem Özgür

et al.

Thin Solid Films, Journal Year: 2025, Volume and Issue: unknown, P. 140605 - 140605

Published: Jan. 1, 2025

Language: Английский

Citations

1

Tribological Properties of Inconel718 Samples Prepared Through Selective Laser Melting DOI

B. S. Arun,

S. Sarath,

S. I. Jithu

et al.

Advances in Science, Technology & Innovation/Advances in science, technology & innovation, Journal Year: 2025, Volume and Issue: unknown, P. 177 - 182

Published: Jan. 1, 2025

Language: Английский

Citations

0

Investigation of post-heat treatment on precipitation kinetics and mechanical properties Inconel 718 superalloy additively manufactured by selective laser melting DOI
Bin Hu,

Shanglei Yang,

Chendong Shao

et al.

Materials Today Communications, Journal Year: 2025, Volume and Issue: unknown, P. 111956 - 111956

Published: Feb. 1, 2025

Language: Английский

Citations

0

Optimizing HVOF-sprayed inconel 718 coatings via direct single-aging treatment: Influence of aging temperature on microstructure, mechanical and tribological properties DOI

Shuhan Yang,

Dingyong He, Fuyin Ma

et al.

Surface and Coatings Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132263 - 132263

Published: May 1, 2025

Language: Английский

Citations

0

Study on Microstructure and Fatigue Properties of Laser Powder Bed Fusion Nickel-Based Superalloy with Heat Treatment DOI Creative Commons

Chuanwen Sun,

Wei Li, Cheng Li

et al.

Deleted Journal, Journal Year: 2025, Volume and Issue: unknown, P. 200217 - 200217

Published: May 1, 2025

Language: Английский

Citations

0

Influence of Heat Treatment on the High Temperature Properties of Inconel 718 Fabricated via Laser Beam Powder Bed Fusion DOI Creative Commons
P.E. May,

Mark White,

Alberto Bordin

et al.

Journal of Materials Research and Technology, Journal Year: 2025, Volume and Issue: unknown

Published: May 1, 2025

Language: Английский

Citations

0

Laser additive manufacturing of CrFeNb particles reinforced Ni-based superalloy composites with grain refinement and superior performance DOI Creative Commons

Peixin Yang,

Haijun Su, Quandong Hu

et al.

Journal of Materials Research and Technology, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 1, 2024

Language: Английский

Citations

3