M
M. Arul Kumar
Researcher at Los Alamos National Laboratory
Publications - 45
Citations - 1433
M. Arul Kumar is an academic researcher from Los Alamos National Laboratory. The author has contributed to research in topics: Crystal twinning & Slip (materials science). The author has an hindex of 16, co-authored 41 publications receiving 937 citations. Previous affiliations of M. Arul Kumar include Government of the United States of America & Indian Institute of Technology Kanpur.
Papers
More filters
Journal ArticleDOI
Numerical study of the stress state of a deformation twin in magnesium
TL;DR: In this paper, a numerical study of the distribution of the local stress state associated with deformation twinning in Mg is presented, both inside the twinned domain and in its immediate neighborhood, due to the accommodation of the twinning transformation shear.
Journal ArticleDOI
Grain neighbour effects on twin transmission in hexagonal close-packed materials
TL;DR: It is shown that increases in crystal plastic anisotropy enhance the probability of twin transmission by comparing the relative ease of twin Transmission in hcp materials such as Mg, Zr and Ti.
Journal ArticleDOI
Effect of local stress fields on twin characteristics in HCP metals
TL;DR: In this article, the effect of nearest neighboring grains on the propensity for twin growth in Mg and Zr was studied and it was shown that the neighboring grain constraint tends to oppose further growth and that the critical applied stress needed to overcome this resistance depends on neighboring grain orientation.
Journal ArticleDOI
Yield symmetry and reduced strength differential in Mg-2.5Y alloy
Dalong Zhang,Haiming Wen,Haiming Wen,M. Arul Kumar,Fei Chen,Lianmeng Zhang,Irene J. Beyerlein,Julie M. Schoenung,Subhash Mahajan,Enrique J. Lavernia +9 more
TL;DR: In this article, a fine-grained Mg-2.5-Y alloy was reported to exhibit tension/compression yield symmetry and reduced strength differential, in addition to well-balanced strength and ductility.
Journal ArticleDOI
Experimentally quantifying critical stresses associated with basal slip and twinning in magnesium using micropillars
Yue Liu,Nan Li,M. Arul Kumar,Siddhartha Pathak,Siddhartha Pathak,Jian Wang,Rodney J. McCabe,Nathan A. Mara,Carlos N. Tomé +8 more
TL;DR: In this article, the critical resolved shear stresses associated with basal slip and twinning in single-crystal and bi-Crystal magnesium samples by performing in situ compression of micropillars with different diameters in a scanning electron microscope were quantified.