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Dynamic Phase Transformation Mechanisms in Ti48Al5Nb2Cr0.6Re0.1C Alloy With Heterogeneous Layered Microstructure

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Introducing solid‐state phase transformations into the design of heterogeneous structures is considered an effective strategy for simultaneously optimizing both microstructure and mechanical properties. This study investigates the thermodynamic and kinetic mechanisms of the γ → α transformation in Ti48Al5Nb2Cr0.6Re0.1C alloy under different ...
Ke‐Xuan Li   +6 more
wiley   +1 more source

Coupling of Multi-mode Optic Fiber to Oxynitride Waveguide for the Application of Chip Spectrometer [PDF]

open access: yes, 2015
在环境监测,食品安全,化学、医药产业和日常生活中,如何便捷地检测出目标物的化学成分成为了一个迫切的需求。传统的化学检测方法往往需要专业的检测人员在实验室进行,并且一种化学分子对应一种专门的检测方法,同时对多种混合物质鉴别的方法并不多见。拉曼光谱是一种指纹式的鉴别方法,一种特定的分子往往具有数个拉曼特征峰,这些特征峰的拉曼偏移是固定的。因此拉曼光谱可以通过特征峰同时鉴别出多种化学分子,检测时间仅需要几秒钟,而且操作简单,只需要将探头对准被测物即可,这为化学检测走出实验室提供了极大的便利 ...
崔晓斌
core  

Sensitive neighborhood range of red sandstone under rheological disturbance condition [PDF]

open access: yes
Under the action of disturbance load, the rheological rock mass in the “sensitive neighborhood” is prone to deformation and failure. In order to study the influence of confining pressure on the range of disturbance “sensitive neighborhood”, the red ...
Bo WANG   +7 more
core   +1 more source

Effect of the density and inclination of joints on the strength and deformation properties of rock-like specimens under uniaxial compression [PDF]

open access: yes, 2017
The effects of the combination of joint density and inclination on the strength and deformation characteristics of rocklike specimens containing open joints were studied by using uniaxial compression tests.
CAO Ping   +5 more
core   +1 more source

Nonlinear finite element analysis for seismic performance of high-strength concrete beam-column joints with new reinforcement details [PDF]

open access: yes, 2006
Because the factors that affect the behavior of the beam-column joints are complicated, an experimental study alone is not sufficient. Therefore, a nonlinear finite element analysis was conducted to provide better understanding of the performance of the ...
Gan, L, Li, J, Pam, HJ
core  

Experimental study on uniaxial compressive strength characteristics of conventional model ice in tank [PDF]

open access: yes
ObjectiveIn the ice-propeller milling or collision test, in order to accurately test the ice load of the propeller, it is very important to use model ice which satisfies similarity with the geometric and mechanical properties of real ice.MethodsUniaxial ...
Chao WANG, Longhui LI, Pei XU
core   +1 more source

Mechanical properties and fracture damage law of coal-rock composition under the action of supercritical CO2 [PDF]

open access: yes, 2023
The injection of CO2 into deep unrecoverable coal seams is one of the effective ways to achieve CO2 geological sequestration, but CO2 will be in a supercritical state under the action of high pressure and high temperature.
Jianbing YAN   +6 more
core   +1 more source

Experimental and theoretical analyses of three-dimensional surface crack propagation [PDF]

open access: yes, 2017
2011-2012 > Academic research: refereed > Publication in refereed journalVersion of ...
Han, ZC   +4 more
core  

Acoustic Emission Warning Signals Change Law Research during Deformation and Failure of Gassy Coal Rock [PDF]

open access: yes, 2013
为提高矿井瓦斯突出灾害预测准确率,基于力学、声学理论,采用实验室试验方法,以标准煤试样为研究对象,对含瓦斯煤岩变形破裂过程声发射(AE)预警声信号变化规律进行研究。试验结果表明:围岩应力增大,煤岩破裂由低围岩应力的脆性破坏逐渐过渡到高围岩应力状态的塑性破坏,可根据声发射高幅信号提前预测煤岩破裂时刻。瓦斯的力学和非力学作用对煤岩体力学性质和变形特性的影响均随瓦斯压力的增加而变大。瓦斯压力越大,则煤岩破裂进程加快,积累的声发射能量迅速释放,高值振铃计数声发射信号覆盖时间区段变长 ...
吕祥锋   +5 more
core  

Experimental study on drag reduction-permeability increase and enhanced displacement of low-rank coal gas [PDF]

open access: yes
In order to achieve drag reduction-permeability increase and enhanced displacement of low-order coal gas,based on the mechanism of gas adsorption and displacement under the inherent properties of coal porous media,the liquid-gas coupling medium was ...
Kaixin LIU   +4 more
core   +1 more source

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