Results 141 to 150 of about 2,336,173 (297)

In Situ Investigation of Microstructure Evolution and Stress Generation During Low‐Pressure Carburizing and Quenching by Means of Synchrotron X‐Ray Diffraction

steel research international, EarlyView.
This study uses in situ synchrotron X‐ray diffraction at the German Electron Synchrotron to analyze low‐pressure carburizing (LPC) in steels. The findings reveal surface carbon saturation and carbide formation kinetics, and phase‐specific stress development during quenching. The results show carbide kinetics depend on steel grade and size, while stress
Ogün Baris Tapar, Michael Georg Zürn, Jens Gibmeier, Antonio Carlos de Figueiredo Silveira, Matthias Steinbacher, Norbert Schell, Jérémy Epp   +6 more
wiley   +1 more source

Effect of Double Annealing on the Microstructure and Mechanical Properties of a Medium Manganese Steel

steel research international, EarlyView.
A double intercritical annealing strategy is proposed to tailor the multiphase microstructure and mechanical response of a medium‐Mn steel. The treatment produces an ultrafine mixture of ferrite, martensite and multiple austenite populations with graded thermal and mechanical stability, formed through austenite reversion and controlled retransformation.
Mattia Franceschi, Jose A. Jimenez, Carlos Garcia‐Mateo, Radhakanta Rana   +3 more
wiley   +1 more source

Deformation and martensitic transformation

Bulletin of Materials Science, 1984
The influence of applied stresses and imposed plastic deformation on the martensitic transformation of a parent phase is described. Changes in mechanical properties such as flow stress, work hardening rate, fracture toughness, etc brought about by strain-induced martensitic transformation are briefly examined.
openaire   +2 more sources

Effects of Access Cavity Design on the Shaping Ability and Dentine Thickness Following Canal Preparation Using XP‐Endo Shaper or Reciproc

Australian Endodontic Journal, EarlyView.
ABSTRACT This study compared the shaping ability and remaining dentine thickness in mandibular molars prepared with traditional (TradAC) or ultraconservative (UltraAC) access cavities using Reciproc or XP‐endo Shaper instruments. Thirty‐two molars were scanned with micro‐CT before and after preparation to assess canal surface, volume, untouched walls ...
Renata Muniz Alvez Cruz, Ana Flávia Almeida Barbosa, Carolina Oliveira de Lima, Ricardo Tadeu Lopes, Marco Aurélio Versiani, Emmanuel João Nogueira Leal da Silva, Luciana Moura Sassone   +6 more
wiley   +1 more source

High Cycle Fatigue Properties of PM‐HIPed High‐Nitrogen Tool Steel: Effect of Surface Condition

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT This study explores the impact of surface condition on high‐cycle fatigue performance of a high‐nitrogen martensitic tool steel manufactured through powder metallurgy and hot isostatic pressing. In near‐net manufacturing applications, acid‐leaching pickling treatment and/or machining is used as a post‐treatment to remove the powder container ...
Faezeh Javadzadeh Kalahroudi, Dimitrios Nikas, Giulio Maistro, Mikael Grehk   +3 more
wiley   +1 more source

Continuous Cooling Transformation Curves of C-Mn-Si Series Super-Bainite Steel

Teshugang, 2012
Dilatation curves of C-Mn-Si series low carbon （/% : 0.11C , 1.15Si, 1.85Mn, 0.032A1, 0.003Ti, 0.002 4N） and medium carbon （/% ： 0.35C, 1.1 ISi, 1.82Mn, 0.041 Al, 0.002Ti, 0.004 2N） bainite steel continuous cooling with cooling rate 0.5 ~ 30 ℃/s have ...
王凤琪, 徐光, 陈静, 补丛华, 邹航   +4 more
doaj  

A Review on Cracking in Laser Additive Manufacturing of Nickel‐Based Superalloys: Types, Formation Mechanisms, and Suppression Strategies

Rare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Nickel‐based superalloys (Ni‐based superalloys) have attracted extensive attention in laser additive manufacturing (LAM) due to their capability to directly fabricate complex and high‐performance structural components. However, the rapid melting and solidification inherent to LAM result in intense thermal cycling, which induces high residual ...
Tianxiang Lin, Ciying Li, Hongkai Zhou, Rui Chen, Yi Li, Can Cui, Lizhang Zhang, Maoyuan Li, Zhenzhong Wang, Wei‐Wei Xu   +9 more
wiley   +1 more source

Effect of Worm‐Like Amorphous Phase on Corrosion Resistance and Antibacterial Properties of NiTiCu Alloy

Rare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT By adding CuO, the worm‐like amorphous phase and atomic clusters were simultaneously introduced, enabling the (Ni40Ti40Cu20)99.9O0.1 alloy micron columns to exhibit a uniform flow strain of over 40% and a strength of over 2.5 GPa during compression.
Huwen Ma, Yanchun Zhao, Junhui Luo, Yu Su, Jiacheng Xiang, Jinyuan Ma, Yongjun Liu, Jiandong Sun, Tengfei Zheng, Qingxin Xu, Honghui Wu, Peter K. Liaw, Peiqing La, Yuan Wu   +13 more
wiley   +1 more source

Evolution of cold-rolling work roll materials based on the elucidation of the cracking mechanism of thermal shock

Materials & Design
Thermal shocks during cold rolling significantly reduce the service lives of work rolls. This study clarified the metallurgical changes that govern thermal crack initiation under rapid heating and cooling.
Seiji Ito, Takayuki Otsuka, Utata Miyoshi, Daisuke Kasai, Kazuo Okamura, Shigeru Hamada   +5 more
doaj   +1 more source

Numerical Prediction of Deformation‐Induced Martensitic Transformation in Cold‐Sprayed Austenitic Stainless Steel

steel research international, Volume 97, Issue 4, Page 2241-2249, April 2026.
Cold spray deposition of stainless steel (grade: SS304) is evaluated for marine applications, with emphasis on martensitic transformation during impact. Analytical modeling, simulations, and experiments reveal that helium‐assisted spraying of fine powders promotes cooling below the martensitic start temperature, enabling up to ≈40% austenite to ...
Cal Vin Wong, K. R. Ramkumar, Sougata Roy, Victor K. Champagne, John J. Lee   +4 more
wiley   +1 more source