I. Ohnaka

635 total citations
34 papers, 525 citations indexed

About

I. Ohnaka is a scholar working on Mechanical Engineering, Materials Chemistry and Mechanics of Materials. According to data from OpenAlex, I. Ohnaka has authored 34 papers receiving a total of 525 indexed citations (citations by other indexed papers that have themselves been cited), including 27 papers in Mechanical Engineering, 14 papers in Materials Chemistry and 10 papers in Mechanics of Materials. Recurrent topics in I. Ohnaka's work include Aluminum Alloy Microstructure Properties (10 papers), Metallurgy and Material Forming (8 papers) and Metallurgical Processes and Thermodynamics (7 papers). I. Ohnaka is often cited by papers focused on Aluminum Alloy Microstructure Properties (10 papers), Metallurgy and Material Forming (8 papers) and Metallurgical Processes and Thermodynamics (7 papers). I. Ohnaka collaborates with scholars based in Japan, China and United States. I. Ohnaka's co-authors include I. Yamauchi, Masayuki Hagiwara, A. Inoue, T. Masumoto, Hideyuki Yasuda, A. Sugiyama, Naoto Ueno, Tomoya Nagira, Kentaro Uesugi and Yasuhiko Yamamoto and has published in prestigious journals such as Acta Materialia, Materials Science and Engineering A and Journal of Materials Science.

In The Last Decade

I. Ohnaka

33 papers receiving 510 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
I. Ohnaka Japan 12 403 242 181 120 79 34 525
J. C. Lin United States 6 487 1.2× 331 1.4× 206 1.1× 62 0.5× 38 0.5× 10 594
S. P. Nikanorov Russia 11 249 0.6× 281 1.2× 159 0.9× 53 0.4× 36 0.5× 62 475
T. S. Kê China 12 376 0.9× 477 2.0× 181 1.0× 117 1.0× 40 0.5× 72 636
L. Levin Israel 17 533 1.3× 407 1.7× 126 0.7× 47 0.4× 30 0.4× 48 731
Kunihiko Iwasaki Japan 14 378 0.9× 362 1.5× 100 0.6× 61 0.5× 26 0.3× 40 602
S. C. Huang United States 10 553 1.4× 312 1.3× 116 0.6× 85 0.7× 69 0.9× 22 588
K.S. Kumar United States 18 766 1.9× 441 1.8× 129 0.7× 65 0.5× 49 0.6× 31 899
S. Chakravorty United Kingdom 12 488 1.2× 360 1.5× 125 0.7× 31 0.3× 81 1.0× 29 616
Manxiu Zhao China 12 423 1.0× 195 0.8× 234 1.3× 54 0.5× 79 1.0× 63 521
M. Kajihara Japan 17 824 2.0× 370 1.5× 372 2.1× 55 0.5× 131 1.7× 34 972

Countries citing papers authored by I. Ohnaka

Since Specialization
Citations

This map shows the geographic impact of I. Ohnaka'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 I. Ohnaka with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites I. Ohnaka more than expected).

Fields of papers citing papers by I. Ohnaka

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by I. Ohnaka. 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 I. Ohnaka. The network helps show where I. Ohnaka may publish in the future.

Co-authorship network of co-authors of I. Ohnaka

This figure shows the co-authorship network connecting the top 25 collaborators of I. Ohnaka. A scholar is included among the top collaborators of I. Ohnaka 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 I. Ohnaka. I. Ohnaka is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Ohnaka, I.. (2015). How to solve complex problems in foundry plants - future of casting simulation -. IOP Conference Series Materials Science and Engineering. 84. 12034–12034. 2 indexed citations
2.
Ohnaka, I., et al.. (2008). Mechanism and estimation of porosity defects in ductile cast iron. International Journal of Cast Metals Research. 21(1-4). 11–16. 15 indexed citations
3.
Yasuda, Hideyuki, Yasuhiko Yamamoto, Noriaki NAKATSUKA, et al.. (2008). In situobservation of nucleation, fragmentation and microstructure evolution in Sn–Bi and Al–Cu alloys. International Journal of Cast Metals Research. 21(1-4). 125–128. 43 indexed citations
4.
Zhao, Haidong & I. Ohnaka. (2005). Numerical simulation of oxide entrapment and mold filling process of Al casting. The Chinese Journal of Nonferrous Metals. 15(8). 1200–1207. 2 indexed citations
5.
Ohnaka, I., et al.. (2005). Numerical simulation and X-ray direct observation of mould filling during vacuum suction casting. International Journal of Cast Metals Research. 18(3). 144–148. 9 indexed citations
6.
Yang, Huadong, et al.. (2004). Structure evolution and compressive behavior of semi-solid Al–Si hypoeutectic alloy with re-melting heat treatment. Journal of Materials Processing Technology. 151(1-3). 155–164. 8 indexed citations
7.
Ohnaka, I., et al.. (2003). Mold filling simulation with consideration of gas escape through sand mold. International Journal of Cast Metals Research. 15(3). 149–152. 12 indexed citations
8.
Yamauchi, I., Takeshi Nagase, & I. Ohnaka. (2002). Eutectoid decomposition in Fe2Si5 based alloys with a small amount of 10(Pd, Pt) and 11(Cu, Ag, Au) group elements. Journal of Materials Science. 37(7). 1429–1435. 7 indexed citations
9.
Yasuda, Hideyuki, et al.. (2002). Synthesis of porous thermoelectric devices. 60. 502–509. 3 indexed citations
10.
Nagase, Takeshi, I. Yamauchi, & I. Ohnaka. (2001). Eutectoid decomposition in rapidly solidified α-Fe2Si5-based thermoelectric alloys. Journal of Alloys and Compounds. 316(1-2). 212–219. 11 indexed citations
11.
Yamauchi, I., et al.. (2000). Metastable phase formation by chemical leaching of Al–Co–Cu ternary alloys. Journal of Alloys and Compounds. 299(1-2). 269–275. 10 indexed citations
12.
Ohnaka, I.. (1999). Progress in Computer Simulation of Casting of Spheroidal Graphite Cast Irons in Japan. International Journal of Cast Metals Research. 11(5). 267–272. 7 indexed citations
13.
Yamauchi, I., et al.. (1998). Effects of Cu addition on the β-phase formation rate in Fe2Si5 thermoelectric materials. Journal of Materials Science. 33(2). 385–394. 19 indexed citations
14.
Yamauchi, I., et al.. (1998). Undercooling in Co–Cu alloys and its effect on solidification structure. Journal of Materials Science. 33(2). 371–378. 62 indexed citations
15.
Yamauchi, I., et al.. (1997). Effect of copper addition on the β-phase formation rate in FeSi2 thermoelectric materials. Journal of Materials Science. 32(17). 4603–4611. 32 indexed citations
16.
Yamauchi, I., et al.. (1996). Effects of Mn and Co addition on morphology of unidirectionally solidified FeSi2 eutectic alloys. Materials Science and Engineering A. 208(1). 101–107. 16 indexed citations
17.
Ohnaka, I. & I. Yamauchi. (1994). Formation of new phases by chemical leaching of rapidly solidified alloys. Materials Science and Engineering A. 181-182. 1190–1194. 8 indexed citations
18.
Masumoto, T., I. Ohnaka, A. Inoue, & Masayuki Hagiwara. (1981). Production of PdCuSi amorphous wires by melt spinning method using rotating water. Scripta Metallurgica. 15(3). 293–296. 107 indexed citations
19.
Ohnaka, I., et al.. (1978). FINITE-ELEMENT METHOD AND A MATRIX METHOD IN TRANSIENT HEAT-CONDUCTION PROBLEMS. Proceeding of International Heat Transfer Conference 6. 251–256. 2 indexed citations
20.
NISHIWAKI, Niichi, et al.. (1970). Studies on noise reduction problems in electric power plants, utilizing geothermal fluids. Geothermics. 2. 1629–1631. 1 indexed citations

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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