Results 101 to 110 of about 1,684,077 (260)

A Polar Topology Network Induces Elastic Stiffening in Ferroelectric Oxide Superlattices

Small, EarlyView.
The periodicity in BiFeO3/SrTiO3 superlattices tunes the system into a dense, elastically constrained polar texture state. This topology‐rich regime reveals a collective mechanical response in which interactions among polar topological defects restrict local deformations, producing a pronounced elastic stiffening.
Mohammad Moein Seyfouri, Peiran Tong, Yoonah Ko, Menghui Xia, Qi Zhang, Zijian Hong, Bin Xu, Seungbum Hong, He Tian, Nagarajan Valanoor, Daniel Sando   +10 more
wiley   +1 more source

Constitutive and transformation kinetics modeling of ε-, α′-Martensite and mechanical twinning in steels containing austenite

, 2022
In the present study, a physically based constitutive and transformation kinetics model of stress assisted (SA) and strain induced (SI) ε-, α′-Martensite and twinning in steels containing austenite, is presented.
Aristeidakis J.S., Haidemenopoulos G.N., Gregory N. Haidemenopoulos, John S. Aristeidakis   +2 more
core   +1 more source

Effect of Microstructure on the Onset Strain and Rate per Strain of Deformation-Induced Martensite Transformation in Q&P Steel by Modeling. [PDF]

Materials (Basel), 2022
Cao J, Jin J, Li S, Wang M, Tang S, Peng Q, Zong Y.   +6 more
europepmc   +1 more source

Coupled FE Modeling of Superelastic NiTi Arch Wire and Bone Remodeling to Simulate 3D Orthodontic Tooth Movement During Leveling Phase. [PDF]

Int J Numer Method Biomed Eng
A 3D FE approach couples superelastic NiTi archwire unloading with alveolar bone remodeling to predict leveling‐phase orthodontic tooth movement. It quantifies the loads applied on individual teeth for controlled tooth movement and is applied to patient‐specific infra‐positioned canine alignment, predicting partial arch leveling with canine extrusion ...
Abou Hamdan M, Wagner D, Jmal H, Touchal S.   +3 more
europepmc   +2 more sources

Alloy Qualification for Producing Quench and Tempered Plate Steels with Extra‐Heavy Gage

steel research international, EarlyView.
This study develops alloy concepts for ultraheavy steel plates (>100 mm) with ≥690 MPa yield strength. Through dilatometry and Jominy testing, the effects of Mo, Ni, and B on hardenability are quantified. A synergy between 0.5% Mo and 0.5%–1.0% Ni ensures core strength at low cooling rates, while boron microalloying suppresses ferrite and promotes ...
Xabier Azpeitia, Unai Mayo, Nerea Isasti, Eric Detemple, Hardy Mohrbacher, Pello Uranga   +5 more
wiley   +1 more source

Tailoring Laser Powder Bed Fusion and Post‐Processing Parameters for JIS SKD61 Tool Steels: Surface Roughness, Microstructure, and Mechanical Properties

steel research international, EarlyView.
Laser powder bed fusion of JIS SKD61 tool steel is systematically optimized using a Taguchi design and ANOVA. Hatch spacing and layer thickness are identified as dominant parameters controlling surface roughness and tensile strength. Subsequent tempering at 600°C improves microstructural stability and mechanical performance, enabling high‐density SKD61
Masrurotin Masrurotin, Andi Ard Maidhah, Maziar Ramezani, Wojciech Macek, Cho‐Pei Jiang   +4 more
wiley   +1 more source

Other title: Office of Children Services Transformation initial findings report

, 2020
"February 2020."; "Mike DeWine, Governor of Ohio; Jon Husted, Lt. Governor of Ohio."; "Ohio Governor's Children's Initiative, Children Services Transformation."; "Safe children. Stable homes.
Ohio. Children Services Transformation Advisory Council
core  

Phase Transformation Behavior of Continuously Cooled Fe–C–V–(Mo) Alloys

steel research international, EarlyView.
Additions of vanadium and molybdenum microalloying are shown to reshape phase transformations in clean low‐carbon steels. By tracking microstructural shifts during continuous cooling, the work uncovers the correlation between transformation kinetics, ferrite morphology, and hardness.
Anastasiya Tselikova, Jannik Zuraszek, Ulrich Krupp, Rolf Schmidt, Hardy Mohrbacher, Alexander Gramlich   +5 more
wiley   +1 more source

MARTENSITE TRANSFORMATIONS IN Fe-Pd ALLOYS

, 1982
Martensite transformations in Fe-Pd alloys have been extensively studied by means of X-ray diffractometry, optical and electron microscopy and Mössbauer effect. Successive martensite transformations were found in the Fe-Pd alloys with about 30at% Pd. The
R. Oshima, M. Sugiyama
core   +1 more source

Press Hardening for Sustainable Lightweight Chassis Design in Heavy‐Duty Vehicles: A Material Performance and Life Cycle Assessment Approach

steel research international, EarlyView.
The article explores how high‐strength steels and press hardening revolutionize lightweight chassis design for heavy‐duty vehicles. It reveals that press hardened steels combined with shot peening can cut weight by up to 34% and reduce environmental impact by 21%–32%.
Violeta Vargas‐Parra, Sergi Parareda, Jose Jorge Espí‐Gallart, Jaume Pujante, Gustaf Gustafsson, Henrik Sieurin, David Frómeta, Daniel Casellas   +7 more
wiley   +1 more source