Results 21 to 30 of about 11,139 (167)
Rare Metals, EarlyView.ABSTRACT The detection of volatile organic compounds (VOCs) holds significant implications in environmental monitoring and disease diagnosis. Traditional gas detection technologies are constrained by complex operation and high cost, thereby failing to satisfy real‐time detection demands.
Yuening Wang +11 more
wiley +1 more source
Rare Metals, EarlyView.ABSTRACT The sluggish kinetics of the oxygen reduction reaction (ORR) necessitate developing oxygen electrodes with enhanced electrocatalytic activity for practical zinc–air battery applications. In this study, an iron‐doped copper sulfide electrocatalyst (CuFeNS‐PNC) anchored on metal–organic framework‐derived carbon substrates was designed, featuring
Taichong Chitboonyakasem +4 more
wiley +1 more source
FATIGUE CRACK GROWTH BEHAVIOR of 0Cr18Ni9 STAINLESS STEEL AT HIGH TEMPERATURES [PDF]
, 2012 研究奥氏体不锈钢0Cr18nI9在高温(550℃)下的疲劳裂纹扩展规律。测试采用标准CT(COMPACT TEnSIOn)试样,最大载荷范围为6.5 kn~14 kn,应力比为0.1(室温)和0.05(550℃)。裂纹扩展过程通过QuESTAr长焦距显微镜直接观测,同时采用COd(CrACk OPEnIng dISPlACEMEnT)规记录加载线位移。由于在高温条件下,测试终止时试样的裂纹前缘呈明显弧形,故此给出实测表面处裂纹长度有效值的修正方法。对高温疲劳裂纹扩展问题 ...
刘建中, 胡本润, 陈勃, 陈立杰
core
Investigation of the internal failure mechanism of laser-additively manufactured nickel-based superalloy [PDF]
Nickel-based superalloys exhibit excellent high strength and thermal fatigue resistance at 650 ℃, making them widely used for manufacturing elevated-temperature components such as turbine blades for aero-engines.
Chuanwen SUN, Rui SUN, Wei LI
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Rare Metals, EarlyView.ABSTRACT Polycrystalline SnSe thin film materials have gained increasing attention as a promising solution for fabricating microscale, flexible, self‐powered electronic components in the field of thermoelectric (TE) materials and devices. However, it is still a great challenge to simultaneously achieve preferred crystal orientation and optimize carrier
Wenxia Li +10 more
wiley +1 more source
, 1988 本文研究爆炸处理时裂纹在应力波作用下的动态扩展行为,分别讨论了入射波、反射波和应力波持续时间的作用,并根据线弹性断裂力学复合型准则和动态断裂准则对裂纹的扩展进行了分析,作者建议用吸能块的办法控制爆炸处理时裂纹的扩展 ...
孙琦清, 郑哲敏, 高桦
core
Deformation and fracture characteristics of rock under creep-impact loading based on subcritical crack growth [PDF]
During deep resources extraction, deep rock is subjected to high stress and dynamic disturbances, leading to frequent dynamic disasters such as coal rock bursts that severely restrict the safe and efficient production of deep resources.
Guangchao ZHANG +7 more
core +1 more source
Rare Metals, EarlyView.ABSTRACT The evolution of the γ′−Ni3(Al, Ti) phase in superalloys is governed by a coupled coalescence‐ripening mechanism driven by elemental diffusion. In this study, thermal exposure experiments were performed at 750°C and 800°C for durations ranging from 100 to 20,000 h.
Zhaotian Wang +5 more
wiley +1 more source
Effects of cooling velocity on multiaxial fatigue behavior of A319 alloy under circular loading conditions [PDF]
, 2017 The effects of cooling velocity on the multiaxial fatigue properties of A319 alloy under circular loading conditions was studied by using the MTS809 servo-hydraulic testing system and scanning electron microscopy.
DAI Li-quan +5 more
core +1 more source
Construction of safety evaluation index system for high-grade steel pipeline [PDF]
, 2023 The occurrence of accidents to large-diameter high-grade steel pipelines, if any, will cause heavy casualties and property losses. Hence, it is very important to evaluate the safety state of large-diameter high-grade steel pipelines.
Feng WANG +6 more
core +1 more source