Results 61 to 70 of about 1,606 (256)

Enabling bainitic transformation acceleration and mechanical properties improvement in ultrafine bainitic steel

Journal of Materials Research and Technology
A novel approach involving the fast heating of cold-rolled pearlite followed by low-temperature isothermal transformation (FBT) was devised to address the technical challenges of long processing times and strength-ductility trade-off in ultrafine ...
Hui Guo, Jianmin Su, Shaoguang Yang, Yipeng Lan, Zhenxi Jiang   +4 more
doaj   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

Decomposition characteristic of austenite retained in GCr15 bearing steel modified by addition of 1.3 wt.% silicon during tempering

Journal of Materials Research and Technology, 2019
The decomposition characteristic of austenite retained in a GCr15 bearing steel modified by the addition of 1.3 wt.% silicon during tempering was investigated by microstructural observation, X-ray determination, and dilatometric experiment.
Zhihui Chen, Jianfeng Gu, Lizhan Han
doaj   +1 more source

Strategic Design of Soft Actuators in Translational Medical Robotics for Human‐Centered Healthcare

Advanced Robotics Research, EarlyView.
Soft robotics enables biocompatible, compliant medical devices, but clinical translation requires design‐driven engineering beyond materials. This perspective reviews implantable, surgical, and wearable systems by actuation mechanism, highlighting how optimized architectures and integration improve mechanical interfacing, adaptability, and durability ...
Ho Jun Jin, Jimin Kim, Inho Kim, Bong Hoon Kim   +3 more
wiley   +1 more source

Influence of Carbonitriding Process on Phase Transformation during Case Hardening, Retained Austenite and Residual Stresses [PDF]

, 2019
The carbonitriding process is a surface hardening technique with an ultimate goal of improving surface hardness, fatigue properties and resistance to wear of highly stressed parts.
Katemi, Richard Jackson
core  

The role of Si in enhancing the stability of residual austenite and mechanical properties of a medium carbon bainitic steel

Journal of Materials Research and Technology
In this work, two bainitic steels with medium carbon content were developed by adding different Si. The mechanical properties of the two test steels and the stability of their retained austenite were studied, and the influence of Si in the steels was ...
Shaolong Zhang, Wen Zhou, Feng Hu, Serhii Yershov, Kaiming Wu   +4 more
doaj   +1 more source

Investigating the Difference in Mechanical Stability of Retained Austenite in Bainitic and Martensitic High-Carbon Bearing Steels using in situ Neutron Diffraction and Crystal Plasticity Modeling

Metals, 2019
In situ neutron diffraction of the uniaxial tension test was used to study the effect of the surrounding matrix microstructure on the mechanical stability of retained austenite in high-carbon bearing steels.
Rohit Voothaluru, Vikram Bedekar, Dunji Yu, Qingge Xie, Ke An, Praveen Pauskar, R. Scott Hyde   +6 more
doaj   +1 more source

Enhanced Stability of Retained Austenite by Quenching and Double Partitioning Process

IOP Conference Series: Materials Science and Engineering, 2017
In the present study, a novel quenching and double partitioning (QD total elongation: 23%) was achieved by quenching to 65°C and subsequent second partitioning treatment, after the first quenching to 300°C and partitioning process. The enhanced mechanical properties were attributed to the increased amount of stabilized film-like austenite.
Z. R. Hou, X. M. Zhao
openaire   +1 more source

Precipitation‐Modulated Harmonic Architectures Enable Superior Strength–Ductility Synergy from Cryogenic to Elevated Temperatures in Nanostructured Alloys

Advanced Science, EarlyView.
Precipitation‐modulated recrystallization enables a programmable bimodal harmonic architecture in a high‐entropy alloy, delivering 1–2 GPa yield strength with >10% ductility from −196 °C to 700 °C. The resulting broad‐temperature robustness arises from the synergy of dual‐mode nanoprecipitation, harmonic core–shell topology, and temperature‐adaptive ...
Wei Li, Liangyin Xiong, Mengchao Niu, Junhua Luan, Wei Wang, Zengbao Jiao   +5 more
wiley   +1 more source

Low-alloy TRIP steels : a correlation between mechanical properties and the retained austenite stability

, 2002
In recent years the technology of low-alloy TRIP steels has considerably advanced. The mechanical properties are characterised by a combination of high yield strength and high uniform elongation as well as enhanced formability.
Bleck, Wolfgang, Gregory N. Haidemenopoulos, Apostolos N. Vasilakos, Katerina Giasla, Giasla, K., Wolfgang Bleck, Ohlert, J., Haidemenopoulos, G., Ohlert, Joachim, Bleck, W., Vasilakos, A., Joachim Ohlert, Haidemenopoulos, G. N., Vasilakos, A. N.   +13 more
core   +1 more source