Results 41 to 50 of about 4,412,327 (186)

Model of Austenite Grain Growth during a Continuous Heating Process of Steel 42CrMo for Bearing Ring of Shield Tunneling Machine

Teshugang, 2014
Based on the model of isothermal austenite grain growth of steel 42CrMo for bearing ring of shield tunneling machine, the model of austenite grain growth during continuous heating process of steel has been established by using the principle of additivity.
郑禹, 姜培扬, 张豪臻, 周乐育, 张朝磊, 刘雅政   +5 more
doaj  

Impact of the Process Atmosphere During Hot Isostatic Pressing on the Near‐Surface Composition of an Additively Manufactured Austenitic High‐Interstitial Steel

Advanced Engineering Materials, EarlyView.
A high interstital austenitic steel is additively manufactured and postdensified by HIP to eliminate gas porosity. Thereby, the loss of N and Mn in Ar HIP atmosphere is investigated. Further, HIP using N2 atmosphere is investigated which led to excessive nitride formation.
F. Großwendt, J. Hahn, J. Kimm, S. Weber, J. Lentz   +4 more
wiley   +1 more source

Growth Behavior of Austenite Grain of Secondary Hardening Ultra-high Strength Steel AF1410

Teshugang, 2010
The growth behavior of austenite grain of secondary hardening ultra-high strength steel AF1410 (% : 0.165C, 14.10Co, 9.83Ni, 1.92Cr, 1.05Mo) heating at 800 ~ 1200 °C for 5 - 180 min has been studied.
廉学魁, 厉勇, 刘宪民, 王春旭, 李建新, 严晓红   +5 more
doaj  

A kinetic model of the austenitization behavior of additively manufactured 17-4 PH martensitic stainless steel

Journal of Materials Research and Technology
Austenitization is significant for understanding the microstructure and residual stress evolution in additive manufacturing of non-austenitic steels. However, the accurate modeling of austenite transformation of additively manufactured parts is rarely ...
Yi Liu, Michael R. Tucker, Junying Min, Markus Bambach   +3 more
doaj   +1 more source

Evolution of ultrafine bainite microstructure during rapid heating process and the role of retained austenite

Journal of Materials Research and Technology, 2023
Rapid heat treatment is an important method to improve the properties of steel. Moreover, the study of the phase transformation process plays an important role in the formulation of rapid heat treatment.
Changbo Liu, Qiwen Fang, Jianjun Wang, Hongguang Li, Xubiao Wang, Dongyun Sun, Zhinan Yang, Fucheng Zhang   +7 more
doaj   +1 more source

Atomistic Insights into Gradient Architecture Driven Strengthening in Additively Manufactured Cu–Ni Stepwise Graded Structures

Advanced Materials Interfaces, EarlyView.
Atomistic simulations reveal the interlayer mechanics of additively manufactured materials, showing how build direction and layer interfaces govern diffusion, defect evolution, and mechanical strength. Distinct anisotropic behavior arises from interface‐controlled deformation and dislocation activity, establishing critical links between microstructural
Rohit Singh, Jinoop Arackal Narayanan
wiley   +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

Average austenite grain size evolution simulation during multi-pass shape metal hot rolling process [PDF]

, 2021
Constitutive equations describing the flow stress of Q235 steel undergoing hot plastic deformation have been developed by integrating the microstructure models and exponential flow stress models presented in literatures, in which the microstructure ...
Junyou, Zhao ; School of Mechanical Engineering, China University of petroleum, Qingdao 266580, P.R. China, Jianguo, Liu ; School of Mechanical Engineering, China University of petroleum, Qingdao 266580, P.R. China, Qingqiang, He ; School of Mechanical Engineering, China University of petroleum, Qingdao 266580, P.R. China, Wanli, Chai ; School of Mechanical Engineering, China University of petroleum, Qingdao 266580, P.R. China, Han, Zhu ; School of Mechanical Engineering, China University of petroleum, Qingdao 266580, P.R. China, Chunli, Geng ; School of Mechanical Engineering, China University of petroleum, Qingdao 266580, P.R. China   +5 more
core   +1 more source

6.1% Volumetric Negative Thermal Expansion Induced by the Reversible Reconstructive Phase Transition in Pb‐Free Bi1−xLnxCoO3 (Ln: Lanthanoid)

Advanced Science, EarlyView.
Perovskite‐type oxide lanthanoid‐substituted BiCoO3 exhibits a reversible negative thermal expansion (NTE) originated from the coordination change from the CoO5 pyramid to the CoO6 octahedron due to melting of the dxy orbital ordering in the d6 electron configuration, and the 6.1% volume shrinkage in Bi0.82Nd0.18CoO3 is the largest ever observed in the
Yuki Sakai, Kazuki Takahashi, Shogo Wakazaki, Takumi Nishikubo, Jun Miyake, Takehiro Koike, Teppei Nagase, Takafumi Yamamoto, Kano Hatayama, Masaichiro Mizumaki, Masaki Azuma   +10 more
wiley   +1 more source

Prediction of Austenite Recrystallized Grain Size in Hot Rolled Strip of C-Mn Steel

Teshugang, 2005
Based on the research on physical metallurgy prediction model including the model of austenite recrystallization in microstructure evolvement, carbo-nitride precipitation, and relation between austenite phase transformation and structure-properties ...
李壮, 周晓光, 王佳夫, 吴迪, 张平礼   +4 more
doaj