Results 41 to 50 of about 2,013,900 (214)

Investigating the Effect of Inclination Angle and the Influence of Scan Parameters on the Appearance and Thermal and Mechanical Properties of Filigree Tension Rods of LPBF‐Manufactured NiTi Shape‐Memory Alloys

Advanced Engineering Materials, EarlyView.
This article investigates the dependence of the properties on the manufacturing orientation in the form of the inclination angle to the build plate of LPBF‐fabricated NiTi rods with a diameter of 150–220 µm. Metallographic, chemical, thermal, and mechanical characterization show behavior under identical manufacturing conditions that ranges from ...
Sandra Herzig, Michael Werner, Christian Rotsch   +2 more
wiley   +1 more source

The influence of the austenite grain size on the microstructural development during quenching and partitioning processing of a low-carbon steel

Materials & Design, 2019
The influence of the prior austenite grain size (PAGS), varying between 6 and 185 μm, on the microstructural development of a low carbon steel during quenching and partitioning (Q&P) processing is investigated.
Carola Celada-Casero, Cees Kwakernaak, Jilt Sietsma, Maria Jesus Santofimia   +3 more
doaj   +1 more source

Effect of the Thermo-Mechanical Processing on the Impact Toughness of a 12% Cr Martensitic Steel with Co, Cu, W, Mo and Ta Doping

Metals, 2021
This paper presents the results of an experimental investigation of a 12% Cr steel where a significant increase in Charpy impact toughness and a slight decrease in ductile-brittle transition temperature (DBTT) from 70 °C to 65 °C were obtained through ...
Alexandra Fedoseeva, Ivan Nikitin, Nadezhda Dudova, John Hald, Rustam Kaibyshev   +4 more
doaj   +1 more source

Influence of prior austenite grain structure on hydrogen-induced fracture in as-quenched martensitic steels

Engineering Fracture Mechanics, 2022
Abstract Suppressing hydrogen embrittlement in martensitic steels is a longstanding challenge. Here, we studied the effects of prior austenite grain (PAG) shape and size with a 0.25C steel utilising novel in situ H-charging, constant-displacement Tuning-fork testing (TFT) and H-permeation tests.
Latypova, Renata, Seppälä, Oskari, Tun Nyo, Tun, Kauppi, Timo, Mehtonen, Saara, Hänninen, Hannu, Kömi, Jukka, Pallaspuro, Sakari   +8 more
openaire   +4 more sources

High‐Entropy Alloy Interlayers Toward Advanced Joining for High‐Performance Structural Applications: Current Progress and Emerging Challenges

Advanced Engineering Materials, EarlyView.
HEA interlayers offer a versatile route for joining high‐performance structural materials. Their compositional and structural design regulates interfacial reactions, suppresses brittle IMCs, and improves metallurgical bonding. Sandwich interlayers further integrate defect healing with precipitation strengthening, enabling improved strength–ductility ...
Lin Yuan, Jiafen Song, Jinglong Li, Jiangtao Xiong, Tao Yang   +4 more
wiley   +1 more source

Austenite Grain Size Estimation in Structural Steels by Linear Section Method / Ocena Wielkości Ziarna Austenitu Metodą Przekrojów Liniowych

Archives of Metallurgy and Materials, 2015
Linear section of grains in polyhedral material microstructure is a system of chords on a test line. The mean chord length is the linear grain size of the material. In the prior austenite microstructure of low alloy structural steels, the chord length is
Adrian H., Wiencek K.
doaj   +1 more source

Correlative microscopy for quantification of prior austenite grain size in AF9628 steel

Materials Characterization, 2020
Abstract The characterization of prior austenite grain size is important for an understanding of the microstructure-property relationships in steels. In this study, the prior austenite grain boundaries (PAGBs) were delineated in a low alloy high performance steel, AF9628, with two different methods: (i) conventional approach via etching, followed by ...
V. Sinha, M. Gonzales, R.A. Abrahams, B.S. Song, E.J. Payton   +4 more
openaire   +2 more sources

A Novel Approach to Estimate the Transition Temperature via Dynamic Nanoindentation

Advanced Engineering Materials, EarlyView.
A new dynamic nanoindentation‐based method was developed that uses the stiffness ratio as an indicator of the elastic–plastic deformation contributions at different temperatures. The approach successfully identified transition temperatures in ferritic steel and distinguished them from continuously ductile austenitic steel.
Stefan Zeiler, Nikolaus Kostwein, Ronald Schnitzer, Christian Mitterer, Verena Maier‐Kiener   +4 more
wiley   +1 more source

Achieving superior strength-ductility balance via heterogeneous structure and successive TWIP+TRIP effects in medium Mn steel

Journal of Materials Research and Technology
In the present work, the medium Mn steel with a strength - ductility product of 49.5 GPa·% was fabricated by a hot rolling, quenching and intercritical annealing process.
Wen Peng, Feifan Wang, Yunlong Wang, Jun Chen, Jie Sun, Ning Guo, Jiyuan Liu   +6 more
doaj   +1 more source

Prior austenite grain measurement: A direct comparison of EBSD reconstruction, thermal etching and chemical etching

Materials Characterization, 2023
It is well known that the prior austenite grain (PAG) microstructure of steels has a significant impact on their microstructure evolution and mechanical properties. Many PAG measuring techniques have been developed over many decades, with the effectiveness of each varying alloy-to-alloy. Some of the more common techniques, specifically for bainitic and
Collins, Joshua, Taylor, Michael, Scarlett, A. L., Palmiere, E. J., Palmiere, E. J., Pickering, Ed; id_orcid 0000-0002-7516-868X   +5 more
openaire   +2 more sources