Effect of Ti and Nb on the Formation of Carbides and the Mechanical Properties in As-cast AISI-M7 High-speed Steel

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概要

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• In this research, the carbides of as-cast AISI M7 high-speed steel, in which different amounts of V and W were replaced by equivalent Ti and Nb, were investigated using light and electron microscope. EDX and WDX analysers were used in order to recognize the type and formulae of carbides. The volume fractions of each type of carbides are determined using especial etchant, so that the effects of Nb and Ti on the carbides types, shapes and volume percentages could be understand.The results show that Nb and Ti increase the volume fraction of MC instead of M2C or M6C and decrease the volume fractions of total carbides. It is also found that, the volume fractions of M2C decrease and M6C increase with increasing Nb percentage.

• 社団法人 日本鉄鋼協会の論文
• 2001-12-15

著者

• Kheirandish Shahram

  Department Of Materials And Metallurgical Engineering Iran University Of Science And Technology

• Kheirandish Shahram

  Department Of Materials Science And Metallurgy Iran University Of Science And Technology (iust)

関連論文

• Kinetics of Austenite Formation in Dual Phase Steels
• Effect of Ti and Nb on the Formation of Carbides and the Mechanical Properties in As-cast AISI-M7 High-speed Steel

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