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主编特别推荐｜Materials Research Letters 前沿研究精选 
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作为材料科学领域的领衔期刊，Materials Research Letters 长期聚焦材料科学前沿研究，关注先进、新型及新兴材料的科学技术。本期，我们特别邀请Materials Research Letters 主编朱运田教授，从期刊近一年发表的研究成果中甄选出一组值得关注的论文，并分享主编推荐语，解读这些研究的亮点与价值。
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关于期刊Materials Research Letters
朱运田
香港城市大学讲席教授，欧洲人文和自然科学院院士，美国国家发明家科学院院士。美国北卡罗来纳州立大学杰出荣休教授，异构纳米材料领域专家，材料设计理念的提出者之一。主要研究领域为纳米晶/超细晶金属与合金、炭纳米管的合成与应用。
支春义
香港大学机械工程系讲座教授，英国皇家化学学会会士，主要研究功能材料，能源材料。
甄选论文
通过增材制造设计异层片结构，以提高钛材料的强度和拉伸塑性
GRAPHICAL ABSTRACT：
主编推荐语：
This paper reports heterostructured Ti processed using additive manufacturing. CP-Ti is an important metal for medical applications because of its superior biocompatibility. However, CP-Ti is usually weak. Heterostructuring is an effective strategy to increase the strength and ductility. Additive manufacturing is an effective approach to tailor medical implants to individual patients. Therefore, this work is novel and represents a breakthrough.
微结构异构性使金属间化合物增强铝合金在室温和高温性能之间实现了平衡
GRAPHICAL ABSTRACT：
主编推荐语：
This work solved a tradeoff problem between room temperature ductility and high temperature strength using the strategy of heterostructuring.
基于物理信息的机器学习用于亚稳态β钛合金强度与延展性的预测
GRAPHICAL ABSTRACT：
主编推荐语：
Machine-learning must incorporate physics to make it meaningful.
Identifying heterostructured materials
异构材料的界定
主编推荐语：
This paper clarifies some confusions and misunderstandings on the cope and definition of heterostructured materials, and on how to differentiate them from conventional metals and alloys. This is important for this fast-developing new materials field.
A novel microalloying strategy for superior creep performance in LPBF Inconel 718 superalloy
LPBF Inconel 718高温合金蠕变性能的新型微合金化策略
GRAPHICAL ABSTRACT：
主编推荐语：
This paper reports a novel approach to solve the important creep issue of Inconel 718 alloy.
调控超细晶粒和高密度析出来制备500 MPa级异质结构镁板
GRAPHICAL ABSTRACT：
主编推荐语：
Strength over 500 MPa represents a great breakthrough in the strength of Mg alloys.
Ductile-to-brittle transition in aluminum alloys
铝合金韧-脆转变
主编推荐语：
Al alloys have an fcc crystal structure and there is usually no ductile-brittle transition issue. This paper reports a composition-dependent ductile-brittle transition at 77K.
通过反向异构在单相TiVNbZr耐火高熵合金中实现强度与拉伸塑性的协同效应
GRAPHICAL ABSTRACT：
主编推荐语：
Strength-ductility tradeoff is a big issue for metal and alloys, especially for refractory alloys. This paper reports a clever way to solve this issue.
Additive manufacturing of metallic heterostructured materials: from 1D to 4D
金属异构材料的增材制造：从1D到4D
主编推荐语：
This is an overview paper on making heterostructured materials using additive manufacturing, which is currently a hot topic.
结合第一性原理计算与机器学习研究铝中偏析晶界的强度
GRAPHICAL ABSTRACT：
主编推荐语：
Grain boundary segregation is an important and fundamental issue in developing new alloys with good mechanical properties and thermal stability. Combing first-principle calculation with machine learning represents a great way to study this issue.
Record BCS high temperature superconductivity in B-doped Q-carbon
B掺杂Q碳中创下BCS高温超导性纪录
GRAPHICAL ABSTRACT：
主编推荐语：
This paper reports a novel type of high-temperature superconductor, which has large coherence lengths and carry record values of critical current densities in the presence of magnetic field.
Materials Research Letters
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