Koji Hagihara

8.8k total citations · 5 hit papers
172 papers, 7.3k citations indexed

About

Koji Hagihara is a scholar working on Mechanical Engineering, Materials Chemistry and Biomaterials. According to data from OpenAlex, Koji Hagihara has authored 172 papers receiving a total of 7.3k indexed citations (citations by other indexed papers that have themselves been cited), including 147 papers in Mechanical Engineering, 104 papers in Materials Chemistry and 69 papers in Biomaterials. Recurrent topics in Koji Hagihara's work include Magnesium Alloys: Properties and Applications (69 papers), Intermetallics and Advanced Alloy Properties (63 papers) and Aluminum Alloys Composites Properties (54 papers). Koji Hagihara is often cited by papers focused on Magnesium Alloys: Properties and Applications (69 papers), Intermetallics and Advanced Alloy Properties (63 papers) and Aluminum Alloys Composites Properties (54 papers). Koji Hagihara collaborates with scholars based in Japan, Australia and China. Koji Hagihara's co-authors include Takayoshi Nakano, Michiaki Yamasaki, Yoshihito Kawamura, Yukichi Umakoshi, Takuya Ishimoto, Akihito Kinoshita, Y. Sugino, Hiroyuki Yasuda, Masakazu Tane and Kenji Hashimoto and has published in prestigious journals such as SHILAP Revista de lepidopterología, Physical Review B and Acta Materialia.

In The Last Decade

Koji Hagihara

168 papers receiving 7.2k citations

Hit Papers

5 papers align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Effect of long-period stacking ordered phase on mechanical properties of Mg97Zn1Y2 extruded alloy

2010 563 citations Koji Hagihara, Michiaki Yamasaki et al. Acta Materialia profile →
Plastic deformation behavior of Mg12YZn with 18R long-period stacking ordered structure

2009 431 citations Koji Hagihara, Yukichi Umakoshi et al. profile →
Crystallographic texture control of beta-type Ti–15Mo–5Zr–3Al alloy by selective laser melting for the development of novel implants with a biocompatible low Young's modulus

2017 334 citations Takuya Ishimoto, Koji Hagihara et al. Scripta Materialia profile →
Excellent mechanical and corrosion properties of austenitic stainless steel with a unique crystallographic lamellar microstructure via selective laser melting

2018 322 citations Takuya Ishimoto, Koji Hagihara et al. Scripta Materialia profile →
Ultrahigh specific strength in a magnesium alloy strengthened by spinodal decomposition

2021 261 citations Tongzheng Xin, Yuhong Zhao et al. Science Advances profile →

Peers

Countries citing papers authored by Koji Hagihara

Since Specialization

Citations

This map shows the geographic impact of Koji Hagihara's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Koji Hagihara with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Koji Hagihara more than expected).

Fields of papers citing papers by Koji Hagihara

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Koji Hagihara. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Koji Hagihara. The network helps show where Koji Hagihara may publish in the future.

Co-authorship network of co-authors of Koji Hagihara

This figure shows the co-authorship network connecting the top 25 collaborators of Koji Hagihara. A scholar is included among the top collaborators of Koji Hagihara based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Koji Hagihara. Koji Hagihara is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Tiny kink-band formation in Fe-Co-Mn-Ni-Ti multi-element alloys 2025 ·Journal of Alloys and Compounds ·Toko Tokunaga, Ryoichi Nakada, Hidetoshi Miyazaki, Koji Hagihara	1
2	Simultaneous achievement of high strength and large elongation in extruded Mg/LPSO alloys via the anisotropic mechanical property-induced ductilization (AMID) mechanism 2025 ·Journal of Magnesium and Alloys ·Koji Hagihara, Tsuyoshi MAYAMA, Michiaki Yamasaki, Toko Tokunaga, (unknown), (unknown), (unknown), (unknown)	2
3	Development of high-toughness high-hardness hypereutectoid steels through optimization of heat treatment and alloying elements 2025 ·Materials Science and Engineering A ·Toko Tokunaga, Yoritoshi Minamino, Koji Yamamoto, Toshiyuki Sugimoto, Koji Hagihara	3
4	Fracture toughening mechanisms acting in Mg-Y-Zn alloys with microstructural anisotropy and heterogeneity 2025 ·Journal of Alloys and Compounds ·(unknown), (unknown), Koji Hagihara, Michiaki Yamasaki	2
5	Dynamic recovery around deformation kink boundary of Mg-Y-Zn alloy with long-period stacking ordered structure 2024 ·Materials Letters ·Michiaki Yamasaki, Tsubasa Matsumoto, Tsuyoshi MAYAMA, Hidetoshi Somekawa, Koji Hagihara, (unknown), Yoshihito Kawamura	2
6	Modification of grain boundary microstructure by controlling dissolution behavior of θ particles in Cr-containing hypereutectoid steel 2023 ·Materials Characterization ·Koji Yamamoto, (unknown), Yoritoshi Minamino, Yuichiro Koizumi, Toko Tokunaga, Koji Hagihara	6
7	Relationship between Cluster-Arranged Nanoplate Formation and Mechanical Properties of Dilute Mg–Y–Zn Alloys Prepared by Combination of Low-Cooling-Rate Solidification and Extrusion Techniques 2023 ·MATERIALS TRANSACTIONS ·(unknown), Michiaki Yamasaki, Koji Hagihara, (unknown), (unknown), Yoshihito Kawamura	11
8	Development of Zn–Mg–Ca Biodegradable Dual-Phase Alloys 2023 ·Metals ·Koji Hagihara, (unknown), Toko Tokunaga, Takayoshi Nakano	3
9	Impact of gas flow direction on the crystallographic texture evolution in laser beam powder bed fusion 2023 ·Virtual and Physical Prototyping ·(unknown), Takuya Ishimoto, Koji Hagihara, (unknown), (unknown), Shihai Sun, Pan Wang, Takayoshi Nakano	17
10	Factor which governs the feature of texture developed during additive manufacturing; clarified from the study on hexagonal C40-NbSi2 2021 ·Scripta Materialia ·Koji Hagihara, Takuya Ishimoto, (unknown), Ryosuke Ozasa, Aira Matsugaki, Pan Wang, Takayoshi Nakano	14
11	Ultrahigh specific strength in a magnesium alloy strengthened by spinodal decomposition breakdown → 2021 ·Science Advances ·Tongzheng Xin, Yuhong Zhao, Reza Mahjoub, Jiaxi Jiang, (unknown), Keita Nomoto, Ranming Niu, Song Tang, Fan Ji, Zakaria Quadir, David M. Miskovic, J. Daniels, Wanqiang Xu, Xiaozhou Liao, Long‐Qing Chen, Koji Hagihara, Xiaoyan Li, Simon P. Ringer, Michael Ferry	261
12	Comparison of microstructure, crystallographic texture, and mechanical properties in Ti–15Mo–5Zr–3Al alloys fabricated via electron and laser beam powder bed fusion technologies 2021 ·Additive manufacturing ·Shihai Sun, Koji Hagihara, Takuya Ishimoto, (unknown), Yunfei Xue, Takayoshi Nakano	40
13	Stability of crystallographic texture in laser powder bed fusion: Understanding the competition of crystal growth using a single crystalline seed 2021 ·Additive manufacturing ·Takuya Ishimoto, Koji Hagihara, (unknown), Takayoshi Nakano	57
14	生体適合性低Young率を持つ新しいインプラントの開発のための選択的レーザ融解によるβ型Ti‐15Mo‐5Zr‐3Al合金の結晶学的集合組織の制御【Powered by NICT】 2017 ·Scripta Materialia ·Takuya Ishimoto, Koji Hagihara, (unknown), (unknown), Takayoshi Nakano	1
15	Outstanding compressive creep strength in Cr/Ir-codoped (Mo0.85Nb0.15)Si2 crystals with the unique cross-lamellar microstructure 2017 ·Scientific Reports ·Koji Hagihara, (unknown), (unknown), Takayoshi Nakano	2
16	Degradation behavior of Ca–Mg–Zn intermetallic compounds for use as biodegradable implant materials 2014 ·Materials Science and Engineering C ·Koji Hagihara, (unknown), (unknown), Takayoshi Nakano	20
17	Compression of Micro-pillars of a Long Period Stacking Ordered Phase in the Mg-Zn-Y system 2013 ·MRS Proceedings ·Atsushi Inoue, Kyosuke Kishida, Haruyuki Inui, Koji Hagihara	30
18	Fracture behavior and toughness of NbSi2-based single crystals and MoSi2(C11b)/NbSi2(C40) duplex crystals with a single set of lamellae 2011 ·Acta Materialia ·Koji Hagihara, Takayoshi Nakano	32
19	Fabrication of Titanium Single Crystal by a Floating Zone Method under Extremely Low Oxygen Partial Pressure 2008 ·Journal of the Japan Institute of Metals and Materials ·Koji Hagihara, Takahiro Tachibana, Keita Sasaki, Yoshiyuki Yoshida, Naoki Shirakawa, (unknown), Takayuki Narushima, Takayoshi Nakano	1
20	Microstructure and Deformation Behavior of Lamellar Ti-Rich TiAl Crystal with Lotus-Type Aligned Pores 2007 ·Materials science forum ·Takayoshi Nakano, Takahiro Tachibana, Koji Hagihara, Yukichi Umakoshi, (unknown), Masakazu Tane, Hideo Nakajima	2

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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