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您的检索式：作者名="Jianchun Chun"
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| 1 | Morphologies of Al_4Sr Intermetallic Phase and Its Modification Property upon A356 Alloys显示文摘In general,the modification performance of Al-Sr master alloys is primarily dependent upon the morphologies and sizes of the Al_4Sr intermetallic phase.In this paper,the crystal structure,morphologies,sizes,hardness and elastic modulus of Al_4Sr in Al-Sr master alloys prepared from variant processes were studied by means of optical metallurgical microscope,X-ray diffraction(XRD),scanning electron microscopy(SEM),and nanoindentation system.The results revealed that the microstructures and modification performance of the Al_4Sr phase were related to the preparation processes.That is to say,when a 'direct reaction-hot extrusion' process was used,the Al_4Sr phase exhibited a homogeneous distribution in the Al matrix with small size and roundish shapes,which ensured the Al-Sr master alloy wire advantages involving high recovery,good reproducibility,no delitescence of modification,no corrosion on equipments,and good workability.However,in the case of the traditional 'direct reaction' process,the Al4Sr phase was in large size with shapes of rectangular stripe and plates,which limited the Sr content increasing due to the brittleness of the Al-Sr alloy.It was also found that the morphology and size of the Al_4Sr phases changed during heat treatment at high temperature up to 600 ℃. | Chengwei Liao Jianchun Chun Yang Li Rui Tu Chunxu Pan | 2012 | Journal of Materials Science & Technology2012，28，6： | 7 |
| 2 | Design of intelligent PID control for static reactive power compensation显示文摘 | Peng Jianchun Huang Chun | 1999 | Journal of Hunan University (Natural Science)1999，26，5： | 1 |
| 3 | Influence of pore pressure on tensile fracture growth in rocks: a new explanation based on numerical testing显示文摘毛孔液体压力的散开可以创造在岩石群众以内影响或控制破裂的开发和进化的空间、时间的有效压力坡度。更好在折断行为上理解控制,数字模拟用为在岩石中一样的自然运动学的特征分享许多的途径建模的进步破裂被执行例如破裂生长,成核,和结束。首先,打破测试的拧离开数字地被执行在一块一致毛孔压力地里调查一个岩石标本的张力的失败。在这数字模拟,机械并且岩石的一间套房的水文学性质在模仿的实验室条件下面被测量。在毛孔压力下面的岩石标本的完全的紧张的失败过程被复制。第二,一个双 notched 标本数字地被扩大调查水流动方向或毛孔压力坡度怎么影响破裂生长。彻底的敏感研究被进行那检验改变水文学和机械边界条件的效果。模拟结果显示本地液体压力坡度强烈在固体影响应力的状态并且从而,折断生长。骨折和力量行为不仅被毛孔压力大小,而且由毛孔压力坡度的取向和分发在全球规模上在破裂尖端附近在本地规模上影响。增加破裂生长率增加本地模型渗透并且减少样品力量。这研究的结果可以在地质的条件下面有关水文学和机械联合行动的度提供有用信息。 | Shou MA Jianchun GUO Lianchong LI Leslie George THAM Yingjie XIA Chun'an TANG | 2015 | Frontiers of Earth Science2015，9，3： | 0 |
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