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EFFECT OF MICROSTRUCTURES OF HIGH STRENGTH STEEL ON SUSCEPTIBILITY OF CADMIUM EMBRITTLEMENT

TANG Zhizhong LIU Minzhi Chengdu University of Science and Technology , Chengdu , ChinaXIAO Yaotian Institute of Metal Research , Academia Sinica , Shenyang , China Dept.of Metal Materials , Chengdu University of Science and Technology , Chengdu , China

金属学报(英文版)

The effect of different microstructures of steel 30CrMnSiNi2A on the susceptibility of cadmium embrittlement has been studied and compared under the unique yield strength level. The results show that the tempered martensite exhibits the maximum susceptibility to cadmium embrittlement,while the lower bainite shows the minimum susceptibility.The mixed microstructure of the above two has a susceptibility in between.

关键词: steel 30CrMnSiNi2A , null , null

KINETICS OF PREPARATION OF ULTRAFINE TiN POWDER BY HIGH FREQUENCY PLASMA

ZHU Lianxi ZOU Siwei Chengdu University of Science and Technology , Chengdu , China ZHU Lianxi Dept.fo Environmental Science and Engineering , Chengdu University of Science and Technology , Chengdu 610065 , China

金属学报(英文版)

The reaction kinetie model for the synthesis of ultrafine TiN powder from vapour phase sys- tem TiCl_4-NH_3-H_2-N_2 in the high frequency plasma reactor was proposed as follows: 1/V((dn_(TiCl_4))/dt)=0.852e~(-63.2·RT)P_(TiCl_4) The majority of factors influenced upon the reaction rate were analysed,so as to provide the theoretical basis for improving quality of TiN powder and for optimizing the design of plasma reactor.

关键词: TiN , null , null

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