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Study Results from Chubu University Update Understanding of Materials Science (Influences of Fine-Particle Bombarding and Conventional Shot Peening...

July 1, 2014



Study Results from Chubu University Update Understanding of Materials Science (Influences of Fine-Particle Bombarding and Conventional Shot Peening on Surface Properties of Steel)

By a News Reporter-Staff News Editor at Journal of Technology -- A new study on Materials Science is now available. According to news reporting originating in Kasugai, Japan, by VerticalNews journalists, research stated, "This study was conducted to investigate the influences of fine-particle bombarding (FPB, maximum diameter of collision particles: 34 pm) and conventional shot peening (510 mu m) on the surface properties of steel. The influence of injection pressure in FPB was also examined."

The news reporters obtained a quote from the research from Chubu University, "The microstructures near surfaces were nano-crystallized by FPB and shot peening. Grain size of nano-crystals was more markedly decreased by FPB than shot peening, and further reduced by the use of high injection pressure in FPB. Surface hardness increased as the grain size of nano-crystals decreased. The hardened layers of the FPBed materials became thicker by the use of high injection pressure; however, they were still shallower than the hardened layers of the shot-peened materials. Compressive residual stress measured on surfaces was higher in FPBed materials than in shot-peened materials."

According to the news reporters, the research concluded: "The use of high injection pressure in FPB was not effective to further increase this stress."

For more information on this research see: Influences of Fine-Particle Bombarding and Conventional Shot Peening on Surface Properties of Steel. Materials Transactions, 2014;55(4):646-652. Materials Transactions can be contacted at: Japan Inst Metals, 1-14-32, Ichibancho, Aoba-Ku, Sendai, 980-8544, Japan.

Our news correspondents report that additional information may be obtained by contacting T. Morita, Chubu Univ, Dept. of Mech Engn, Fac Engn, Kasugai, Aichi 4878501, Japan. Additional authors for this research include S. Noda and C. Kagaya.

Keywords for this news article include: Asia, Japan, Kasugai, Materials Science

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Journal of Technology


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