Results 21 to 30 of about 4,809 (229)

Pd2MnGa Metamagnetic Shape Memory Alloy with Small Energy Loss

Advanced Science, 2023
Metamagnetic shape memory alloys (MMSMAs) are attractive functional materials owing to their unique properties such as magnetostrain, magnetoresistance, and the magnetocaloric effect caused by magnetic‐field‐induced transitions.
Tatsuya Ito, Xiao Xu, Atsushi Miyake, Yuto Kinoshita, Makoto Nagasako, Kohki Takahashi, Toshihiro Omori, Masashi Tokunaga, Ryosuke Kainuma   +8 more
doaj   +1 more source

Unprecedented strength in pure iron via high-pressure induced nanotwinned martensite

Materials Research Letters, 2019
Martensitic transformation can easily induce a maximum hardness value of 800–900 HV (Vickers hardness) for steels with carbon contents of 0.6 wt.% and above.
Hongwang Zhang, Yuhui Wang, Yan Peng, Pinwen Zhu, Jianhua Liu, Zongqiang Feng, Guilin Wu, Xiaoxu Huang   +7 more
doaj   +1 more source

Theory and Model for Martensitic Transformations [PDF]

Physical Review Letters, 1986
Martensitic transformations are shown to be driven by the interplay between two fluctuating strain components. No soft mode is needed, but a central peak occurs representing the dynamics of strain clusters. A two-dimensional magnetic-analog model with the martensitic-transition symmetry is constructed and analyzed by computer simulation and by a theory
Lindgård, Per-Anker, Mouritsen, Ole G.
openaire   +2 more sources

Martens-ite

Metals, 2018
Martensite and martensitic transformations in metals and alloys have been intensively studied for more than a century and many comprehensive and informative reviews have been published.
Druce Dunne
doaj   +1 more source

Influence of Deformation Temperature and Strain Rate on Martensitic Transformation of Duplex Stainless Steel and Its Corresponding Kinetic Model

Metals
For investigating the effect of temperature and strain rate on martensitic transformation and establishing the corresponding kinetic model for newly TRIP (transformation-induced plasticity) aided duplex stainless steel (DSS), the tensile tests are ...
Qiyong Zhu, Fei Gao, Zilong Gao, Weina Zhang, Shuai Tang, Xiaohui Cai, Zhenyu Liu   +6 more
doaj   +1 more source

Insights into the martensitic transformation kinetics and mechanical properties of quaternary Ti–Ni–Nb–V shape memory alloys

Journal of Materials Research and Technology, 2022
The effect of V addition on the microstructural evolution, martensitic transformation behaviors and mechanical performances of Ti–Ni–Nb shape memory alloys was systematically investigated.
Xiaoyang Yi, Lijie Sheng, Guoqiang Fu, Kuishan Sun, Qin Yang, Haizhen Wang, Xinjian Cao, Xu Tang, Xianglong Meng, Zhiyong Gao, Jie Chen, Shangzhou Zhang   +11 more
doaj   +1 more source

Effect of Nd Addition on the Microstructure and Martensitic Transformation of Ni-Ti Shape Memory Alloys

Advances in Materials Science and Engineering, 2014
The effect of rare earth element Nd addition on the microstructure and martensitic transformation behavior of Ni50Ti50−xNdx (x=0, 1, 3, 7, 20) shape memory alloy was investigated experimentally.
M. Dovchinvanchig, C. W. Zhao, S. L. Zhao, X. K. Meng, Y. J. Jin, Y. M. Xing   +5 more
doaj   +1 more source

Crystal symmetry and the reversibility of martensitic transformations [PDF]

Nature, 2004
Martensitic transformations are diffusionless, solid-to-solid phase transitions, and have been observed in metals, alloys, ceramics and proteins. They are characterized by a rapid change of crystal structure, accompanied by the development of a rich microstructure.
BHATTACHARYA K., CONTI S., ZANZOTTO, GIOVANNI, ZIMMER J.   +3 more
openaire   +4 more sources

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

Advanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu, Xun Zhang, Jack M. Donoghue, Albert D. Smith, Rahul Unnikrishnan, Rhys Thomas, Vahid Nekouie, Jie Luo, Dongchen Hu, Michael Preuss, Philip J. Withers   +10 more
wiley   +1 more source