Results 81 to 90 of about 2,336,173 (297)

Simulating the Effects of Substrate Pre-Heating on the Final Structure of Steel Parts Built by Laser Powder Deposition [PDF]

, 2004
Tool steel parts built by laser powder deposition often present a heterogeneous distribution of properties caused by the complex structural transformations that occur during the deposition process.
Costa, L., Réti, T., Vilar, R.
core   +1 more source

Influence of Prior Martensite on Bainite Transformation, Microstructures, and Mechanical Properties in Ultra-Fine Bainitic Steel

Materials, 2019
A multiphase microstructure comprising of different volume fractions of prior martensite and ultra-fine bainite (bainitic ferrite and retained austenite) was obtained by quenching to certain temperatures, followed by isothermal bainitic transformation ...
Hui Guo, Xian-ying Feng, A. Zhao, Qiang Li, Jun Ma   +4 more
semanticscholar   +1 more source

Development of Heat Engines Powered by Twisted and Coiled Polymer Fiber Actuators

Advanced Materials Technologies, EarlyView.
Continuously rotating engines driven by thermally responsive actuating materials can turn waste heat into useful energy. For the first time heat engines operated by twisted and coiled polymer fiber actuators are demonstrated with engine design guided by two simple analytical models.
Geoffrey M. Spinks, Burhan Bin Asghar Abbasi, Zhen Jiang   +2 more
wiley   +1 more source

Effect of phase transformation and porosity formation on the mechanical behavior of continuous wave Nd: YAG laser beam welded Ti–6Al–4V

Journal of Materials Research and Technology
Ti–6Al–4V sheets with a thickness of 3 mm were welded using Nd:YAG laser beam welding (LBW). The scanning speed of the laser beam was changed from 3.5 m/min to 6 m/min.
Isaac Dinaharan, Jebaraj David Raja Selvam, Peter Madindwa Mashinini, Soundararaja Perumal Vigneshwaran   +3 more
doaj   +1 more source

The Effect of Drawing Deformation Rate Induced Inhomogeneous Local Distortion on Phase Transformation of 304H Stainless Wire

Metals, 2020
The micro/macro magnetic properties, local element distribution, martensite transformation, and mechanical properties of 304H stainless wires are determined for two cold drawing chains.
Qinhua Xu, Zhixian Peng, Jianxin Zhu, Mingyang Li, Yong Zong, Lei Yan, Chaoqun Li, Ke Peng, Zhaoyang Cheng, Jing Liu   +9 more
doaj   +1 more source

A two dimensional model for ferromagnetic martensites

, 2005
We consider a recently introduced 2-D square-to-rectangle martensite model that explains several unusual features of martensites to study ferromagnetic martensites.
A. Sozinov, G. Ananthakrishna, K. Binder, L. D. Landau, O. Heczko, R. Oshima, S. Sreekala, V. D. Buchel’nikov, V. D. Buchel’nikov, Y. M. Jin   +9 more
core   +1 more source

Smart Bioinspired Material‐Based Actuators: Current Challenges and Prospects

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This work gathers, in a review style, an extensive and comprehensive literature overview on the development of autonomous actuators based on synthetic materials, bringing together valuable knowledge from several studies. Furthermore, the article identifies the fundamental principles of actuation mechanisms and defines key parameters to address the size
Alejandro Palacios, Léon Chiriatti, Simon Poppinga, Thomas Speck, Vincent Le Houérou   +4 more
wiley   +1 more source

Microstructure transformation and twinning mechanism of 304 stainless steel tube during hydraulic bulging

Materials Research Express, 2020
At room temperature, the hollow shaft of AISI 304 stainless steel tubes was produced by a hydraulic bulging process. The behavior of strain-induced austenite to martensite transformation and the twin crystallographic nature of AISI 304 stainless steel ...
G S Song, K S Ji, H W Song, S H Zhang
doaj   +1 more source

Phase-field analysis of quenching and partitioning in a polycrystalline Fe-C system under constrained-carbon equilibrium condition

, 2018
Mechanical properties of steels are significantly enhanced by retained austenite. Particularly, it has been shown that a recently developed heat-treatment technique called Quenching and Partitioning (Q\&P) stabilises austenite effectively. In the present
Amos, P G Kubendran, Nestler, Britta, Schneider, Daniel, Schoof, Ephraim, Streichan, Nick   +4 more
core   +1 more source

Stress-Induced Phase Transformations in Shape-Memory Polycrystals [PDF]

, 2008
Shape-memory alloys undergo a solid-to-solid phase transformation involving a change of crystal structure. We examine model problems in the scalar setting motivated by the situation when this transformation is induced by the application of stress in a ...
Bhattacharya, Kaushik, Schlömerkemper, Anja   +1 more
core   +2 more sources