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检索条件：作者=MI Guofa
MI Guofa , NAN Hongyan , LIU Yanlei , ZHANG Bin , ZHANG Hong , SONG Guoxiang
钢铁研究学报(英文版)
Speed increase and heavy-haul of the railway freight car are the effective measures to raise the transport ability of railway, and they have been the new trend for railway freight car development. The increase of speed and axle load will lead to the increase of wheel-rail contact stress, which will ...
关键词: heavy-haul;contact stress;critical inclusion size;rim crack
MI Guofa , LI Hongyu , LIU Xiangyu , WANG Kuangfei
The porous superalloy materials with hollow spherical pores were fabricated by using metal powder sintering process. The scanning electron microscope (SEM) observation was applied to the test samples and it revealed that the pores of the porous material exhibited a uniform distribution and the apert...
关键词: porous superalloy material;metal powder sintering;hollow spherical pore;oriented linear pore
MI Guofa , LIU Xiangyu , WANG Kuangfei , FU Hengzhi
The numerical simulation technique was applied to the casting process of a valvetype part. The moldfilling and solidification stages of the casting were numerically analyzed. The filling behavior, solidification sequence, and thermal stress distribution were reproduced and the possible defects, su...
关键词: cast steel;valvetype part;numerical simulation;process modification
