Zobrazeno 1 - 10
of 279
pro vyhledávání: '"Shoichi Kikuchi"'
Publikováno v:
Results in Materials, Vol 23, Iss , Pp 100612- (2024)
A surface modification process for steel rods based on atmospheric-pressure nitrogen plasma (APP) at room temperature was developed. Steel rods were irradiated with APP generated by dielectric-barrier discharge in a nitrogen atmosphere. Elemental ana
Externí odkaz:
https://doaj.org/article/9c7da5b123b34c7ab9bafd10d5eea377
Publikováno v:
Results in Materials, Vol 22, Iss , Pp 100578- (2024)
Multifunction cavitation (MFC) has potential as an environmentally friendly surface-modification method. In the present study, the modified surface layer and the fatigue properties for MFC-processed low-alloy steel were investigated. When the process
Externí odkaz:
https://doaj.org/article/a9be5418d8c14b808fc9df5baaa44c1d
Autor:
Kei Ameyama, Fabien Cazes, Hervé Couque, Guy Dirras, Shoichi Kikuchi, Jia Li, Frédéric Mompiou, K. Mondal, Dmytro Orlov, Bhupendra Sharma, David Tingaud, Sanjay K. Vajpai
Publikováno v:
Materials Research Letters, Vol 10, Iss 7, Pp 440-471 (2022)
The harmonic structure is a recently introduced concept paving the way for engineering metallic materials to achieve excellent mechanical performance. They consist of soft coarse-grained regions (Core) that are three-dimensionally surrounded by a con
Externí odkaz:
https://doaj.org/article/641d9dbe7a8f4082a326593fa1a71f3f
Publikováno v:
Journal of Magnesium and Alloys, Vol 10, Iss 7, Pp 1878-1886 (2022)
A surface-hardening treatment for AZ31 magnesium alloy using an atmospheric-pressure plasma jet (APPJ) at room temperature was developed. Magnesium is a potential engineering material because it is lightweight; however, magnesium alloys are difficult
Externí odkaz:
https://doaj.org/article/8c4aa77a11b7457ea08b82a63ead8927
Autor:
Masataka Ijiri, Naoki Okamoto, Shun Okamoto, Takayuki Ogi, Shoichi Kikuchi, Toshihiko Yoshimura
Publikováno v:
Journal of Materials Research and Technology, Vol 19, Iss , Pp 1897-1905 (2022)
Rust in rust-prone steel is promoted in water by corrosive factors. Therefore, to prevent the formation of rust, it is necessary to eliminate various corrosive factors before plating or other rust prevention measures. In this study, we investigated i
Externí odkaz:
https://doaj.org/article/cd6dd01bbe5d4d2b91adb4df0b1dcd7d
Publikováno v:
Materials & Design, Vol 226, Iss , Pp 111657- (2023)
Austenitic stainless steel with a bimodal harmonic structure (HS) is a recently developed material that consists of a periodic arrangement of coarse-grained (CG) structures surrounded by a network of ultra-fine grains (UFG). This material is characte
Externí odkaz:
https://doaj.org/article/2fff43ca472947e09f2eafe2004a2a88
Autor:
Yoshinobu Shimamura, Yusuke Hayashi, Masao Kinefuchi, Ryota Tanegashima, Kazuya Sugitani, Yusuke Sandaiji, Tomoyuki Fujii, Shoichi Kikuchi, Keiichiro Tohgo
Publikováno v:
Materials Transactions; 2024, Vol. 65 Issue 6, p637-643, 7p
Publikováno v:
International Journal of Lightweight Materials and Manufacture, Vol 2, Iss 3, Pp 227-234 (2019)
A hydroxyapatite (HAp) surface layer was generated at room temperature on a beta-titanium alloy (Ti-29Nb-13Ta-4.6Zr, TNTZ) using fine particle peening (FPP), as a means of enhancing fatigue resistance. This material is commonly employed in bio-implan
Externí odkaz:
https://doaj.org/article/1fc420828e2e40979959089ae5fef0d0
Autor:
Shoichi Kikuchi, Yuta Nakatsuka, Yoshikazu Nakai, Masashi Natakani, Mie Ota Kawabata, Kei Ameyama
Publikováno v:
Frattura ed Integrità Strutturale, Vol 13, Iss 48, Pp 545-553 (2019)
Austenitic stainless steel (JIS-SUS304L) with a bimodal harmonic structure, which is defined as a coarse-grained structure surrounded by a network of fine grains, was fabricated using powder metallurgy to improve both the strength and ductility. Four
Externí odkaz:
https://doaj.org/article/20772fafa9ae4abca0935d7b24ef8c59
Autor:
Yoshikazu Nakai, Shoichi Kikuchi, Daiki Shiozawa, Issei Nakazawa, Keisuke Fujita, Mie O. Kawabata, Kei Ameyama
Publikováno v:
Procedia Structural Integrity. 43:221-227