Our previous study has found that FeCrVTi_(x) medium-entropy alloys(MEAs)with BCC matrix and Laves precipitation have high yield strength(1097-1493 MPa),good fracture strain(27.1%-47.7%)and excellent thermal conductiv...Our previous study has found that FeCrVTi_(x) medium-entropy alloys(MEAs)with BCC matrix and Laves precipitation have high yield strength(1097-1493 MPa),good fracture strain(27.1%-47.7%)and excellent thermal conductivity(42.2-69.7 W/(m·K)at 673-1273 K),it is expected to be widely applied in the elds of advanced nuclear energy and aerospace^([1]).However,what is the mechanism of strengthening and high thermal conductivity of this MEAs?展开更多
The corrosion behavior of metallic materials is an inevitable natural phenomenon.Seawater is a common service environment for metallic structural materials(ships,bridges,oil rigs,submarine pipelines,etc.),and the dama...The corrosion behavior of metallic materials is an inevitable natural phenomenon.Seawater is a common service environment for metallic structural materials(ships,bridges,oil rigs,submarine pipelines,etc.),and the damage caused by seawater corrosion is severe because that corrosion can accelerate the failure of metallic materials.On the other hand,Pressurized Water Reactor(PWR)is widely used in worldwide nuclear power plants in operation.展开更多
新型冠状病毒(以下简称新冠病毒,SARS-CoV-2)自2019年12月以来依然在全球流行。作为一种RNA病毒,新冠病毒在流行期间经历了多次的变异。2020年9月首次在英国发现了阿尔法变异株,随后接连有5个变异株被世界卫生组织(World Health Organiz...新型冠状病毒(以下简称新冠病毒,SARS-CoV-2)自2019年12月以来依然在全球流行。作为一种RNA病毒,新冠病毒在流行期间经历了多次的变异。2020年9月首次在英国发现了阿尔法变异株,随后接连有5个变异株被世界卫生组织(World Health Organization,WHO)列为“需关注的变异株”,其中2021年11月首次在南非确认的奥密克戎变异株,在被发现后迅速传遍全球成为主要流行株,并产生不同亚株。展开更多
文摘Our previous study has found that FeCrVTi_(x) medium-entropy alloys(MEAs)with BCC matrix and Laves precipitation have high yield strength(1097-1493 MPa),good fracture strain(27.1%-47.7%)and excellent thermal conductivity(42.2-69.7 W/(m·K)at 673-1273 K),it is expected to be widely applied in the elds of advanced nuclear energy and aerospace^([1]).However,what is the mechanism of strengthening and high thermal conductivity of this MEAs?
文摘The corrosion behavior of metallic materials is an inevitable natural phenomenon.Seawater is a common service environment for metallic structural materials(ships,bridges,oil rigs,submarine pipelines,etc.),and the damage caused by seawater corrosion is severe because that corrosion can accelerate the failure of metallic materials.On the other hand,Pressurized Water Reactor(PWR)is widely used in worldwide nuclear power plants in operation.
文摘新型冠状病毒(以下简称新冠病毒,SARS-CoV-2)自2019年12月以来依然在全球流行。作为一种RNA病毒,新冠病毒在流行期间经历了多次的变异。2020年9月首次在英国发现了阿尔法变异株,随后接连有5个变异株被世界卫生组织(World Health Organization,WHO)列为“需关注的变异株”,其中2021年11月首次在南非确认的奥密克戎变异株,在被发现后迅速传遍全球成为主要流行株,并产生不同亚株。
