Results 111 to 120 of about 544,820 (302)

Environmental fatigue of an Al-Li-Cu alloy. Part 3: Modeling of crack tip hydrogen damage [PDF]

Environmental fatigue crack propagation rates and microscopic damage modes in Al-Li-Cu alloy 2090 (Parts 1 and 2) are described by a crack tip process zone model based on hydrogen embrittlement. Da/dN sub ENV equates to discontinuous crack advance over a
Gangloff, Richard P., Piascik, Robert S.
core   +1 more source

Dynamics of Shear-Transformation Zones in Amorphous Plasticity: Formulation in Terms of an Effective Disorder Temperature

, 2004
This investigation extends earlier studies of a shear-transformation-zone (STZ) theory of plastic deformation in amorphous solids. My main purpose here is to explore the possibility that the configurational degrees of freedom of such systems fall out of ...
A. Mehta, F. Spaepen, J. S. Langer
core   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Tunnel surrounding rock plastic zone in the layered rock mass with the elastoplastic theory

Shuiwen dizhi gongcheng dizhi
Existing theoretical studies on the plastic zone of tunnel surrounding rock mainly focus on the circular tunnel in the isotropic rock mass, with limited attention paid to layered rock mass.
Shudong ZHOU, Tongwei ZHANG, Xinsheng WANG, Xiaoxiao MA, Hongyan LIU   +4 more
doaj   +1 more source

Helicobacter Pylori's Plasticity Zones Are Novel Transposable Elements

PLoS ONE, 2009
يمكن للجينات الموجودة في سلالات معينة فقط من الأنواع البكتيرية أن تؤثر بقوة على الأنماط الظاهرية الخلوية والإمكانات التطورية. تم العثور على جزء واحد بدا غنيًا بشكل خاص بالجينات الخاصة بالسلالة من خلال مقارنة أول جينومين متسلسلين من هيليكوباكتر بيلوري (السلالات 26695 و J99) وسمي "منطقة اللدونة".
Dangeruta Kersulyte, Woo Kon Lee, Dharmalingam Subramaniam, Shrikant Anant, Phabiola Herrera, Lilia Cabrera, Jacqueline Balqui, O. Barábas, Awdhesh Kalia, Robert H. Gilman, Douglas E. Berg   +10 more
openaire   +5 more sources

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

Experimental Study on the Butterfly Shape of the Plastic Zone around a Hole near Rock Failure

Fractal and Fractional
The precursor of rock failure around a hole has always been one of the research hotspots in the field of rock mechanics, and the distribution of the plastic zone is often adopted to reflect the location and form of rock failure.
Wenlong Zhang, Jiajia Yu, Jianju Ren, Chen Li, Ji Ma   +4 more
doaj   +1 more source

Experimental investigation on possible dependence of plastic zone size on specimen geometry [PDF]

, 2009
In this investigation the extent of the plastic zone size ahead of a crack-tip in single edge notched tension (SENT), compact tension (CT) specimens has been examined experimentally by micro-hardness technique and by elastic-plastic finite element ...
B. Maiti, K. K. Ray, S. K. Kudari
core  

Plastic response of a 2D amorphous solid to quasi-static shear : I - Transverse particle diffusion and phenomenology of dissipative events

, 2007
We perform extensive simulations of a 2D LJ glass subjected to quasi-static shear deformation at T=0. We analyze the distribution of non-affine displacements in terms of contributions of plastic, irreversible events, and elastic, reversible motions. From
Anaël Lemaître, Christiane Caroli, M. L. Falk   +2 more
core   +3 more sources

Corrosion and Process Analysis of a Preoxidized MgO Recyclate‐Based Cermet Anode in Laboratory‐Scale Na‐Cryolite Molten Salt Electrolysis of Aluminum at 1000°C

Advanced Engineering Materials, EarlyView.
EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk, Farhan Hossain, Felipe A. Garcia Paz, Serhii Yaroshevskyi, Felix Drechsler, Daniel Vogt, Christos G. Aneziris, Alexandros Charitos   +7 more
wiley   +1 more source