Report

Nano/ultrafine grained immiscible Fe-Cu alloy with ultrahigh strength produced by selective laser melting‍‍‍‍‍‍‍

A. Zafari & K. Xia

Volume 9, Issue 6 | Pages: 247-254‍‍

Published online: 18 Feb 2021

https://doi.org/10.1080/21663831.2021.1884620‍

Nano/ultrafine Fe grains containing Cu particles of 5 nm in size and 10 nm in spacing were achieved by SLM of Fe-Cu, resulting in an ultrahigh strength material.

Abstract   |   Full Text   |    PDF   ‍

‍6. Ordering-mediated local nano-clustering results in unusually large Hall-Petch strengthening coefficients in high entropy alloys‍‍‍‍‍

‍A. Jagetia, M.S.K.K.Y. Nartu, S. Dasari, A. Sharma, B. Gwalani & R. Banerjee

Volume 9, Issue 5 | Pages: 213-222‍‍

Published online: 13 Jan 2021

https://doi.org/10.1080/21663831.2020.1871440‍

This paper reports that the Hall-Petch co-efficient (K) dramatically increase when Al is added to CoFeNi/CoCrFeNi alloys. Such a trend is attributed to the ordering mediated nano-clustering in Al containing HEA/CCAs.

Abstract   |   Full Text   |   PDF ‍

‍5. In situ TEM observation of phase transformation in bulk metallic glass composites‍‍‍‍‍

Huaping Sheng, Long Zhang, Haifeng Zhang, Jianbo Wang, Jürgen Eckert & Christoph Gammer

Volume 9, Issue 4 | Pages: 189-194‍‍

Published online: 17 Jan 2021

https://doi.org/10.1080/21663831.2020.1867919

‍    Abstract   |   Full Text   |   PDF‍

4‍. Superconductivity in CuAl₂-type Co_0.2Ni_0.1Cu_0.1Rh_0.3Ir_0.3Zr₂ with a high-entropy-alloy transition metal site‍‍‍‍

‍Yoshikazu Mizuguchi, Md. Riad Kasem & Tatsuma D. Matsuda

Volume 9, Issue 3 | Pages: 141-147‍‍

Published online: 20 Dec 2020

https://doi.org/10.1080/21663831.2020.1860147

We report on the material design, synthesis, and observation of a superconducting transition at 8.0 K in new high-entropy-alloy type compound with a CuAl2 type structure, Co0.2Ni0.1Cu0.1Rh0.3Ir0.3Zr2.

‍    Abstract   |   Full Text   |   PDF   ‍

Report

3. Introducing transformation twins in titanium alloys: an evolution of α-variants during additive manufacturing‍‍‍‍

‍H. Wang, Q. Chao, L. Yang, M. Cabral, Z. Z. Song, B. Y. Wang, S. Primig, W. Xu, Z. B. Chen, S. P. Ringer & X. Z. Liao

Volume 9, Issue 3 | Pages: 119-126‍‍

Published online: 18 Dec 2020

‍https://doi.org/10.1080/21663831.2020.1850536‍

A new twinning mechanism, transformation twinning, was discovered in a Ti–6Al–4V alloy fabricated by selective laser melting. The resulting high density of transformation twins impact the global mechanical properties significantly.

‍   Abstract   |   Full Text   |   PDF   

Overview

2. Additive friction stir deposition: a deformation processing route to metal additive manufacturing‍‍‍

‍Hang Z. Yu & Rajiv S. Mishra

Volume 9, Issue 2 | Pages: 71-83‍‍

Published online: 24 Nov 2020

https://doi.org/10.1080/21663831.2020.1847211

This paper delineates additive friction stir deposition, which offers a solid-state deformation processing route to metal additive manufacturing and renders fully-dense material with fine, equiaxed microstructures in the as-printed state.

‍    Abstract   |   Full Text   |   PDF    

Perspective

1. Heterostructured materials: superior properties from hetero-zone interaction

‍Yuntian Zhu, Kei Ameyama, Peter M. Anderson, Irene J. Beyerlein, Huajian Gao, Hyoung Seop Kim, Enrique Lavernia, Suveen Mathaudhu, Hael Mughrabi, Robert O. Ritchie, Nobuhiro Tsuji, Xiangyi Zhang & Xiaolei Wu

Volume 9, Issue 1 | Pages: 1-30‍

Published online: 27 Sep 2020

https://doi.org/10.1080/21663831.2020.1796836

This paper delineates heterostructured materials, which are emerging as a new class of materials with unprecedented properties, new materials science and economic industrial production.

Abstract   |   Full Text   |   PDF