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Testing study of subcritical crack growth rate and fracture toughness in different rocks CAO Ping(曹 平), LI Jiang-teng(李江腾), YUAN Hai-ping(袁海平) School of Resources and Safety Engineering...; Abstract: Subcritical crack growth of double torsion specimens made of ore, lherzolite, marble and granite was studied using Instron1342 type electro hydraulic......
Trans. Nonferrous Met. Soc. China 28(2018) 998-1006 Effect of clad ratio on interfacial microstructure and properties of cladding billets via direct-chill casting process Hai-tao ZHANG, Xing HAN... the bonding interface and formed diffusion layer. With the increase of clad-layer thickness, the interfacial region transforms from semisolid-solid state to liquid-solid state and the diffusion layer......
expansion and the way of crack growth depends on the magnitude of the interfacial angle and the misorientation of adjacent grain plane. Key words: nickel-based superalloy; fatigue crack growth; fracture... dimensions for fatigue crack growth (FCG) test (Unit: mm) 实验分别在室温,700 ℃及750 ℃ 3个温度进行,为保证数据的可靠性,每个温度下测试3个样品.疲劳裂纹扩展实验在MTS810型疲劳机上完成,控制方法采用的是恒力幅测定材料的疲劳裂纹扩展速率da/dN,波形为正弦波,加载频率为10 Hz,应力比为0.1.本实验中采集的数据是裂纹扩展......
Fatigue small crack growth threshold determination of a high-Nb TiAl alloy at different temperatures by in-situ observationMin Zhang1,Xi-ping Song1,Long Yu1,Hong-liang Li1,Ze-hui Jiao2,Hui-chen Yu21...:The purpose of this paper is to estimate the fatigue crack growth threshold of a high-Nb TiAl alloy at the different temperatures based on scanning......
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layer and the clad strip does not split along the interface during cold-rolling if the thickness of interfacial layer is less than 4-5μm. The thick interfacial layer(>5-6μm), however, crumbles during cold-rolling, thus resulting in the splitting of the clad strip. Key words: liquid-solid roll cladding; bimetal bearing strip; interface; interfacial bonding strength CLC number: TG335.85 Document......
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的疲劳裂纹扩展抗力. 关键词:SiCp/Al复合材料;疲劳短裂纹扩展;裂纹闭合;裂纹偏析 中图分类号:TG146.2+1 文献标识码: A Effect of SiC particulates on small fatigue crack growth behavior of SiCp/2009Al composite... and 2009Al thin layer above it, and hence inducing crack closure in composite during small fatigue crack growth. And the mound-like shape also causes crack deflection in composite, thus reduces......
strength of Ni(5%P) solder joint is concluded to be higher than that of Ni(10%P) solder joint. Growth of Ni3Sn4 IMC layer and formation of crack are accounted to be the major sources of the failure... Interfacial reactions between Sn-2.5Ag-2.0Ni solder and electroless Ni(P) deposited on SiCp/Al composites WU Mao(吴 茂), QU Xuan-hui(曲选辉), HE Xin-bo(何新波), Rafi-ud-din, REN Shu-bin(任淑彬), QIN Ming......
, 82: 1-6. [24] SUN Xian-jun, TAO Jie, GUO Xun-zhong. Bonding properties of interface in Fe/Al clad tube prepared by explosive welding [J]. Transactions of Nonferrous Metals Society of China, 2011, 21... by explosive welding [J]. Journal of Alloys and Compounds, 2017, 698: 835-851. [7] APRAMANIK. Effects of reinforcement on wear resistance of aluminum matrix composites [J]. Transactions of Nonferrous Metals......