低温退火时间对Laves相Cr2Nb固相热反应合成的影响

研究了900℃退火时，退火时间对Cr—Nb机械合金化（MA）粉的Laves相Cr2Nb固相热反应合成的影响规律，获悉了15hMA粉在900℃低温退火时能使Cr2Nb固相热反应合成充分进行的最短时间。优化出的Cr2Nb固相热反应合成低温退火时间，为通过MA＋热压（或烧结）工艺路线制备出具有微／纳米晶结构的高强高韧Cr2Nb合金或Cr2Nb基复合材料提供了可能性。     

大塑性变形制备超细晶生物医用钛合金的研究进展

生物医用钛合金具有高强度、良好的耐蚀性能、较低的弹性模量、优异的生物相容性,已成为具有广阔应用前景的医用金属材料之一.与传统医用钛合金相比,超细晶医用钛合金具有更高的强度与更好的疲劳性能以及耐腐蚀性能.此外,超细晶钛合金可诱导骨组织向内生长,增加界面结合强度,加快骨修复进程,在硬组织修复材料领域具有广阔的应用前景.阐述了各种大塑性变形（Severe Plastic Deformation）法制备超细晶生物医用钛合金的研究状况与最新进展,指出了SPD法制备医用钛合金中存在的技术问题和发展方向,并展望了利用SPD法对生物医用钛合金改性将成为生物医用材料的研究热点.     

2013年中国钛工业发展报告

从产能、产量、市场、价格、对外贸易等方面对中国钛精矿、海绵钛、钛锭、钛粉、钛加工材等主要相关钛产品的生产及销售情况进行了统计,并在此基础上对2013年中国钛工业的总体运营状况进行了评价,对取得的技术进步进行了回顾。指出2013年中国钛精矿的供求基本平衡,而海绵钛及钛加工材均存在产能过剩的问题,且价格均大幅下滑,尤其是2013年下半年价格一直处于低位。此外,中国钛工业在发展中要注重决策的前瞻性和计划性,狠抓技术进步以及钛产品的应用推广。     

稀土和碱土在热镀合金中应用的研究

研究了钢件热浸镀Fe-Al-RE(Sr)的工艺,测定了镀层的性能,分析了镀层结构与性能之间的关系     

提高金厂沟梁金矿炭浆厂解吸率的生产实践

通过对解吸电解操作条件的调整和控制，使解吸电解回收率由原来的75．23％提高到91．18％，贫炭含金从原来的518．3g／t降到168．8g／t，缓解了设备处理能力和生产任务之间的矛盾．     

Low linolenate and commercial soybean oils diminish serum HDL cholesterol in young free-living adult females

OBJECTIVE: A mutant soybean line (A16) low in linolenic acid content (2% of oil by weight) was developed to increase oil oxidative stability. It was unknown whether serum lipid and lipoprotein concentrations in humans would be affected should A16 soybean oil (A16 oil) replace commercial soybean oil in diets. This study was conducted to examine the hypothesis that in free-living normolipidemic women, the consumption of A16 oil at approximately 10% of energy intake (en%) would not affect serum lipids and lipoproteins differently than would the consumption of the same amount of a commercial soybean oil with 7% of linolenic acid content. DESIGN: Fifteen free-living female college students consumed the soybean oil daily with regular meals for 9 weeks in different orders, with each test oil being eaten for 3 weeks. During the study, 13 en% was provided by each test oil and a total of 35 en% was from dietary fat. Serum concentrations of total cholesterol, high-density lipoprotein cholesterol (HDL cholesterol), low-density lipoprotein cholesterol (LDL cholesterol) and triacylglycerides (TAG) were measured. Serum total fatty acid patterns were analyzed as well. RESULTS: Each of the three test oils decreased serum total cholesterol, LDL cholesterol and TAG concentrations from the baseline values. The feeding of A16 and commercial soybean oils decreased serum HDL cholesterol significantly compared with coconut oil (p < 0.05). Dietary inclusion of coconut oil increased serum myristic acid significantly more than did either soybean oil (p < 0.01). Serum arachidonic acid concentrations were significantly greater with A16 consumption than with commercial soybean oil consumption (p < 0.001). CONCLUSION: A16 and commercial soybean oils both diminished serum HDL cholesterol. Although the fatty acid composition differed between the two soybean oils, A16 oil and commercial oil had similar effects on serum concentrations of lipoproteins and lipids. With increased oxidative stability, A16 oil is a good alternative to commercial soybean oil.     

余热处理高强度钢筋中冷却模型的研究

本文通过研究余热处理高强度钢筋的控制冷却原理和低碳钢相变规律,建立控制冷却的数学模型。研究表明,建立的数学模型实用可靠,冷却强度可以随化学成分、终轧速度、终轧温度、自回火温度等生产条件的变化而进行逻辑分析,进而确定控冷工艺参数,生产性能合格稳定的钢筋。此外,根据生产条件的不同,冷却程序具有可移植性。     

附着式轧制力智能监测系统

围绕轧制力传感器的轻型化问题讨论了分流测量模型,介绍了附着式传感器的基本原理和智能监测仪表的功能及在中板轧机上的应用.     

用铁精矿生产异性粘结永磁橡塑磁粉的研究

介绍一种利用磁铁矿生产粘结橡塑磁粉的新型方法，探讨了各种添加剂，烧结制度及粒度对磁性能的影响。通过中试证明，此工艺完全可应用于大规模工业生产。