摘要：For austenitic octahedral segregation structure units, their pure mathematics statistic distribu!ive probability is calculated by the empirical electron theory （EET） of solids and molecules and K-B formula. The practical distributive probability can be obtained only if the statistic distribution of austenitic octahedral segregation structure units and the interaction of the alloying elements in steel are considered. Based on 8 groups of experimental data of original steels, three empirical formulas revealing relationships between material macromechanics factor （Sm） and tensile strength （ab）, or impact energy （AK）, or hardness （HRC） of multi-component medium-low-alloy steels were established, respectively. Through the three empirical formulas, new supersaturated carburizing steel has been successfully designed and developed. The other 2 groups of the original experimental steels are used as the standard steel for testing the percentage error of the new steel. The results show that the calculated values are well consistent with those of measured ones and the new supersaturated carburized steel can meet the requirements of the die assembly of cold-drawn seamless stainless steel tube of Taiyuan Iron ＆ Steel （Group） Company LTD.

摘要：通过腐蚀重量法实验及电化学测试，研究了Ｆｅ－Ｍｎ－Ｓｉ－Ｃｒ形状记忆合金的耐腐蚀性能，并与Ｆｅ－Ｍｎ－Ｓｉ形状记忆合金及１８－８铬镍不锈钢的耐腐蚀性能作了比较。结果表明，Ｆｅ－Ｍｎ－Ｓｉ－Ｃｒ合金的耐腐蚀性能明显高于Ｆｅ－Ｍｎ－Ｓｉ合金，在Ｆｅ－Ｍｎ－Ｓｉ－Ｃｒ合金中随着铬含量的增加，其耐腐蚀性能也相应提高。

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摘要：针对焊接工艺数据的高效管理与应用需求,设计船用薄板机器人激光复合焊接工艺数据库。基于焊接工艺设计、焊接工艺评定和焊接生产加工等3个场景,该系统由数据信息管理、焊接工艺定义、标准系统查询、实例检索推理、数值模拟验证、焊接工艺规程(Welding Procedure Specification,WPS)制定和焊接工艺反馈等7个功能模块组成,对于解决激光复合焊接的数据管理问题和需求具有重要意义。