Tel Ad办公空间坐落于以色列卡法萨巴一栋翻新建筑内。因自然采光条件有限,设计团队引入中央人工照明中庭,重塑空间流线,并通过材料运用,明确空间界定与功能分区。该中庭既是空间锚点,亦是氛围焦点。鉴于建筑进深较大,难以持续获取自然...Tel Ad办公空间坐落于以色列卡法萨巴一栋翻新建筑内。因自然采光条件有限,设计团队引入中央人工照明中庭,重塑空间流线,并通过材料运用,明确空间界定与功能分区。该中庭既是空间锚点,亦是氛围焦点。鉴于建筑进深较大,难以持续获取自然光线,中庭采用全光谱农业照明系统,以确保绿植全年茂盛生长。同时,空间流线也经重新设计,形成环绕绿色核心的环形路径,既确保了与绿植的持续视觉联系,又使各工作区域间的流线直观且流畅。除满足空间功能需求外,中庭在提升员工福祉与工作效率方面亦扮演关键角色:研究显示,相较于传统无窗办公环境,接触绿植及动态照明等自然元素,可有效降低压力、增强专注力并缓解视疲劳。室内统一采用水磨石地面、不锈钢装饰及天然木饰面,实现了整体空间的连贯性。展开更多
Although hydrogen evolution reaction(HER)is considered to be the main cathodic reaction of Mg corro-sion,oxygen reduction reaction(ORR)has been recently confirmed to be a secondary cathodic reaction.The factors affect...Although hydrogen evolution reaction(HER)is considered to be the main cathodic reaction of Mg corro-sion,oxygen reduction reaction(ORR)has been recently confirmed to be a secondary cathodic reaction.The factors affecting ORR of magnesium(Mg)alloys are still unclear,especially in cases under thin elec-trolyte layers(TEL).In this work,the influence of the corrosion product films on the cathodic reactions of Mg alloys under TEL and in a bulk solution was investigated.ORR does not influence the hydrogen evolution rates in the corrosion of Mg alloys.Therefore,with the existence of oxygen,corrosion rates of Mg alloys measured by hydrogen evolution tests are not accurate under TEL.And weight loss test is a more accurate method to evaluate Mg corrosion rates under TEL.ORR was confirmed to participate in the corrosion of Mg-4Nd-0.4Zr,Mg-4Nd and Mg-0.4Zr alloys under TEL.In 100-μm TEL,the highest con-tribution of ORR in cathodic reactions for the corrosion of Mg-4Nd-0.4Zr,Mg-4Nd and Mg-0.4Zr alloys are 28.6%,39.1%,and 35.8%,respectively.The more protective film on Mg-4Nd-0.4Zr alloy provides a stronger inhibition effect against the diffusion of oxygen,leading to decreased ORR contribution in ca-thodic reactions.In addition,it is suggested that the preparation of Mg alloys with protective corrosion product films can inhibit the corrosion induced by ORR in the atmosphere.This work emphasizes the effects of corrosion product films on ORR in Mg corrosion,especially under TEL.展开更多
基金supported by the National Natu-ral Science Foundation of China(Nos.U23A20555 and 52271008)the Young Elite Scientists Sponsorship Program by CAST(No.2023QNRC001)the Joint Research Fund of Advanced Technology by Shanghai Aerospace(No.USCAST2023-15).
文摘Although hydrogen evolution reaction(HER)is considered to be the main cathodic reaction of Mg corro-sion,oxygen reduction reaction(ORR)has been recently confirmed to be a secondary cathodic reaction.The factors affecting ORR of magnesium(Mg)alloys are still unclear,especially in cases under thin elec-trolyte layers(TEL).In this work,the influence of the corrosion product films on the cathodic reactions of Mg alloys under TEL and in a bulk solution was investigated.ORR does not influence the hydrogen evolution rates in the corrosion of Mg alloys.Therefore,with the existence of oxygen,corrosion rates of Mg alloys measured by hydrogen evolution tests are not accurate under TEL.And weight loss test is a more accurate method to evaluate Mg corrosion rates under TEL.ORR was confirmed to participate in the corrosion of Mg-4Nd-0.4Zr,Mg-4Nd and Mg-0.4Zr alloys under TEL.In 100-μm TEL,the highest con-tribution of ORR in cathodic reactions for the corrosion of Mg-4Nd-0.4Zr,Mg-4Nd and Mg-0.4Zr alloys are 28.6%,39.1%,and 35.8%,respectively.The more protective film on Mg-4Nd-0.4Zr alloy provides a stronger inhibition effect against the diffusion of oxygen,leading to decreased ORR contribution in ca-thodic reactions.In addition,it is suggested that the preparation of Mg alloys with protective corrosion product films can inhibit the corrosion induced by ORR in the atmosphere.This work emphasizes the effects of corrosion product films on ORR in Mg corrosion,especially under TEL.
