【作者】 姜启川； 王金国； 邱丰； 赵庆龙； 马天宁；

【Author】 JIANG Qi-Chuan;WANG Jin-Guo;QIU Feng;ZHAO Qing-Long;MA Tian-Ning;Department of Materials Science and Engineering, Jilin University;Jiangsu Jin Gang Special Steel Co., Ltd;

【机构】 吉林大学材料科学与工程学院； 江苏金港特钢有限公司；

【摘要】 研究了原位纳米颗粒对铸造铝合金、铸钢、铸铁组织与性能的影响规律。揭示出纳米颗粒明显细化铸造铝合金、铸钢、铸铁的组织,提高了上述合金的强韧性,尤其是显著提高了铸造铝合金的高温强塑性、抗高温蠕变性能、高温耐磨性能。发明了新型高性能高Cr热作模具钢,其制造的热作模具寿命超过了进口热作模具钢制作的模具寿命。更多还原

【Abstract】 The influence of in-situ nano-particles on the structure and properties of cast aluminum alloys, cast steel and cast iron has been investigated. It is found that nano-particles evidently refine the structure of cast aluminum alloys, cast steel and cast iron, and improve the strength and toughness of these alloys, especially the strength, ductility, creep resistance and wear resistance of aluminum alloys at elevated temperatures. We invented a new high-performance high-Cr hot work die steel, and the service life of the dies using our steel exceed that using foreign hot-work die steel.更多还原