Unveiling post-deformation transformation mechanism and ferrite microstructure evolution for tailoring mechanical properties of low-carbon martensitic steels

Tong, Z.*; Xia, C.*; Li, W.*; Ding, W.*; Guo, B.*; Min, N.*; Gong, W.; Harjo, S.; Tsuji, Nobuhiro*

Journal of Materials Science & Technology, 266, p.127 - 140, 2026/09

https://doi.org/10.1016/j.jmst.2025.12.004

Ductile-to-brittle transition in aluminum alloys

Zhou, D.*; Zhang, X.*; Pang, X.*; Zhao, Z.*; Chen, X.*; Wei, S.*; Yang, C.*; Gong, W.; Harjo, S.; Li, R.*; et al.

Materials Research Letters (Internet), 14(6), p.689 - 698, 2026/06

https://doi.org/10.1080/21663831.2026.2646271

Progressive release of long-stored carbon from tropical peatland disturbances

Koarashi, Jun; Ito, Masayuki*; Atarashi-Andoh, Mariko; Kokubu, Yoko; Matsueda, Makoto; Kusin, K.*; Jaya, A.*; Dohong, S.*; Hirano, Takashi*

Nature Communications (Internet), 17, p.4369_1 - 4369_9, 2026/05

https://doi.org/10.1038/s41467-026-72890-y

Tropical peatlands are globally important, millennia-old carbon sinks, yet unprecedented human-driven degradation is triggering alarming carbon emissions. Comprehensive quantification of carbon dynamics across the disturbance sequence, from peat swamp forests to drained and fire-impacted peatlands, remains a critical knowledge gap. Here we show that over 18 years (1996-2014), drainage and subsequent peat fires released approximately 30-41 kg C m from peatlands in Central Kalimantan, Indonesia, using radiocarbon dating of peat profiles and groundwater dissolved organic carbon. Drainage contributed 5-11 kg C m, primarily from centuries- to millennium-old, previously waterlogged peat. Fires released 23-32 kg C m from peat accumulated over the past 3,000 years, initiating progressive oxidative decomposition of older peat. Extrapolation to Indonesia's disturbed peatlands suggests a release of 0.81-3.70 Gt between 1996 and 2014, with ongoing decomposition releasing an additional 0.03-0.08 Gt C annually, accelerating the impact on the global carbon balance.

Relationships among non-allophanic/allophanic indicators in six Japanese forest Andosol profiles; Implications for soil classification and genesis

Alam, M. M.*; Yamakita, Eri*; Tamanna, S.*; Thae, E. P.*; Koarashi, Jun; Atarashi-Andoh, Mariko; Abe, Yukiko; Nakayama, Masataka; Mori, Yuki*; Hiradate, Shuntaro*

Soil Science and Plant Nutrition, 72(3), p.289 - 300, 2026/05

https://doi.org/10.1080/00380768.2026.2616655

Monte Carlo simulation of cosmic-ray exposure in traditional architecture of the equatorial region using PHITS; A Case study of Cameroon

Takoukam Soh, S. D.*; Guembou Shouop, C. J.*; Sato, Tatsuhiko; Bineng, G. S.*; Sadou*; Ndontchueng Moyo, M.*

European Physical Journal Plus (Internet), 141(4), p.469_1 - 469_14, 2026/04

https://doi.org/10.1140/epjp/s13360-026-07608-6

Evaluation of residual stress distribution in linear friction welded steel joint neutron diffraction mapping measurement

Yamashita, Takayuki*; Nagira, Tomoya*; Gong, W.; Kawasaki, Takuro; Harjo, S.; Ushioda, Kosaku*; Fujii, Hidetoshi*

ISIJ International, 66(5), p.673 - 684, 2026/04

https://doi.org/10.2355/isijinternational.ISIJINT-2025-405

Enhanced elastocaloric cooling beyond Clausius-Clapeyron limits

Song, Y.*; Xu, S.*; Omori, Toshihiro*; Kawasaki, Takuro; Ishikawa, Yoshihisa*; Kiyanagi, Ryoji; Kainuma, Ryosuke*

Nature Communications (Internet), 17, p.3747_1 - 3747_8, 2026/04

https://doi.org/10.1038/s41467-026-72172-7

Intercomparison of low-energy electron transport calculations by different Monte Carlo track-structure simulation codes

Kyriakou, I.*; Papadopoulos, A.*; Polopetrakis, I.*; Kotroumbelou, C.*; Plante, I.*; Matsuya, Yusuke; Kai, Takeshi; Qiu, R.*; Li, J.*; Kundrt, P.*; et al.

Physics in Medicine & Biology, 71(8), p.085009_1 - 085009_25, 2026/04

https://doi.org/10.1088/1361-6560/ae5758

Several Monte Carlo Track-Structure (MCTS) codes for liquid water have been developed worldwide over the last 40 years; however, use the different interaction cross sections. This study evaluates the uncertainties of physical features (electronic stopping power, pathlength, dose-point-kernel, and microdosimetry) of low-energy electron transport in liquid water by using 6 types of MCTS codes. The intercomparison results reveal significant differences among MCTS codes at low energies, especially below ~100 eV, potentially compromising the accuracy of DNA damage simulations where such electrons play a key role. The present work highlights the need for further development of the physics models used in MCTS codes to reduce the uncertainties associated with low-energy electron transport calculations in liquid water.

Strengthening mechanism in ferrite and austenite of friction stir welded duplex stainless steel; neutron diffraction study

Yamashita, Takayuki*; Koyama, Motomichi*; Gong, W.; Kawasaki, Takuro; Harjo, S.; Ushioda, Kosaku*; Fujii, Hidetoshi*

ISIJ International, 66(4), p.477 - 488, 2026/03

https://doi.org/10.2355/isijinternational.ISIJINT-2025-291

TiC nanoparticles tune phase stability and deformation mechanisms in directed energy deposition processed Fe60Co15Ni15Cr10 medium-entropy alloy composites

Ahn, S. Y.*; Kim, E. S.*; Jeong, S. G.*; Harjo, S.; Kawasaki, Takuro; Gong, W.; Kim, H.-J.*; Hong, S.-J.*; Hong, S. I.*; Kwon, H.*; et al.

Materials Science & Engineering A, 955, p.149839_1 - 149839_18, 2026/03

https://doi.org/10.1016/j.msea.2026.149839