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highly acidic environment beyond the optimum pH would impose an additional stress on microorganisms since the microbial cytoplasm must be maintained close to neutrality [5]. The processing pH 1.0......
<111>螺型位错滑移面的影响,结果发现Re的加入可以改变位错中心的对称性(如图1所示),降低位错滑移的阻力(佩尔斯应力 Peierls stress),增加滑移面的数目,有利于塑性变形的进行从而显著改善W的塑性和延展性[12, 14].此外,Re可以降低W合金的DBTT同时提高其RCT[15-16],拓宽W作为面向等离子体材料在反应堆中的可运行温度范围,提高其安全性. 在辐照性能方面...得W的表面发生熔融,起泡和开裂,可见Ti对W在强瞬态热负荷下的稳定性是不利的. 综上所述,Ti可以提高W基材料的密度和强度,但同样也会提高W的DBTT,高温下的脆性仍然很大,此外Ti也不利于W的抗热冲击性能. 图9 不同温度下W-1%TiC合金和W-2%Ti合金三点弯曲应力-应变曲线 Fig. 9 Stress-strain curves of three point......
Materials and Engineering, 2006, 35(12): 1904-1907. [16] RAPSON W S. Tarnish resistance, corrosion and stress corrosion cracking of gold alloys [J]. Gold Bulletin, 1996, 29(2): 61-69. [17] YUAN Jun-ping......
parameter η (η>0) represents characteristic life. Fig. 2 Framework of the proposed method The fatigue cracks and spalls caused by alternating stress cycles occurred in the raceway are the main......
; (2) We also note that after hydriding, the diffraction peaks of the as-cast and milled alloys obviously broaden, which results from the lattice stress and expansion when hydrogen atoms enter......
]. The Science of the Total Environment, 2016, 562: 427-434. [11] WANG Y, CHAI L Y, YANG Z H, MUBARAK H, TANG C J. Chlorophyll fluorescencein leaves of Ficus tikoua under arsenic stress [J]. Bulletin......
film/electrolyte interface [J]. Journal of the Electrochemical Society, 2000, 147(4): 1376-1381. [20] Trasatti S P, Sivieri E. Electrochemical and stress corrosion cracking behaviour of titanium in n......
the local stress concentration near or around the reinforcing particle. At some extent, this concentration reaches the critical value, causing the fracture of the reinforcing particle and separation......
the representative compression stress-strain curves of the (β-TCP+MgO)/Zn-Mg composite, with Zn-Mg alloy as the control. The average compressive strength of the composite was 244 MPa, which was about... exert through bridging mechanism when external stress is applied and can hinder cracks initiation and growing effectively [31]. The interpenetration of the metal stabilizes the porous ceramic struts......
: 10.1016/j.jhazmat.2011.06.039. [28] LONG Fen, WEI Qiu-ping, YU Zhi-ming, LUO Jia-qi, ZHANG Xiong-wei, LONG Hang-yu, WU Xian-zhe. Effects of temperature and Mo2C layer on stress and structural properties......
