2013年9月2日星期一

China has successfully developed a molybdenum alloy high strength and high ductility

March 4, 2013 China Rare Earth Molybdenum is a rare refractory metals , not only widely used in the production of stainless steel and other steel materials , but also because molybdenum alloy itself has excellent thermal conductivity , high temperature , etc. However, in aerospace , machinery, metallurgy and other fields has broad application prospects. Copper Lead Zinc Tin CNMN.COM.CN nickel , small metal , scrap metal. China 's Molybdenum crucible reserves, production and consumption volume ranking first in the world . Copper Lead Zinc Tin CNMN.COM.CN nickel , small metal , scrap metal. But Mo has a low temperature brittleness , low strength , ductility characteristics of poor molybdenum alloy deep processing more difficult , its application is more restricted , so many years of molybdenum in molybdenum alloy products mainly primary products . Copper Lead Zinc Tin CNMN.COM.CN nickel , small metal , scrap metal. Research and development with better performance , higher value-added molybdenum alloys, molybdenum industry for our country has an extremely important significance. Copper Lead Zinc Tin CNMN.COM.CN nickel , China Nonferrous network, a small metal , scrap metal.
Currently the major international use of rare earth oxide dispersion strengthened molybdenum alloy , but usually doped molybdenum oxide or molybdenum powder as solid, doped rare earth oxides can be refined to micron or sub- micron level, and were located at the grain boundaries , not only strengthening effect is limited, and molybdenum alloys prone to early fracture . Copper Lead Zinc Tin CNMN.COM.CN nickel , small metal , scrap metal. How to simultaneously improve the strength and extension of molybdenum plating alloy , toughness, has been a challenging problem in this field . Copper Lead Zinc Tin CNMN.COM.CN nickel , small metal , scrap metal.
Xi'an Jiaotong University, State Key Laboratory of Materials Task Force Sun Jun lasted more than 10 years , the recent breakthrough in this field . Copper Lead Zinc Tin CNMN.COM.CN nickel , small metal , scrap metal. Their actual needs from the engineering , materials preparation technology dating back to the difficulty , concise and solve key scientific issues related to , and then push the material preparation technology, innovation and breakthroughs. Copper Lead Zinc Tin CNMN.COM.CN nickel , China Nonferrous network, a small metal , scrap metal. They have developed a nano-structured material dispersion strengthened molybdenum alloy , reinforced with nano- rare earth oxide particles and ultrafine-grained microstructure , in obtaining a significant strengthening at the same time , the tensile ductility doubled. Copper Lead Zinc Tin CNMN.COM.CN nickel , small metal , scrap metal. The results are published online in the journal Nature Materials on the website . Copper Lead Zinc Tin CNMN.COM.CN nickel , small metal , scrap metal. Accreditation people think this is a very important original research results , has important scientific and application value . Copper Lead Zinc Tin CNMN.COM.CN nickel , small metal , scrap metal.

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