|About this Abstract
||Materials Science & Technology 2012
||Steel Product Metallurgy and Applications
||Improvement of Low Temperature Toughness and Resistance to Hydrogen Cracking of HB500 Class Abrasion Resistant Steel by Grain Refinement
||Shinichi Miura, Keiji Ueda, Nobuyuki Ishikawa, Yasuhiro Murota, Kiyomi Araki
|On-Site Speaker (Planned)
Steel plates used for construction and industrial machinery, need to have high strength and excellent resistance to abrasive wear. Wear resistance is mainly governed by surface hardness of steel plate. Therefore, increasing surface hardness is basic measure for improving wear resistance of steel plate.
In recent years, many other material properties, such as weldability, low temperature toughness and resistance to delayed fracture, one required for abrasion resistant steel plate. However, all three material properties usually show trade-off relationship with strength and hardness. In order to improve low temperature toughness and resistance to hydrogen cracking, grain refining techniques were applied.In this report, the effect of prior austenite grain size on toughness and resistance to hydrogen embrittlement were investigated. Material properties and weldability of newly developed HB500 class abrasion resistant steel plate were introduced.
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