A new single micro-particle electrode(SMPE)fabrication technique the inlaid SMPE technique was introduced in this paper.The preparation procedure of an alloy SMPE was described in detail.Based on the SMPE technique,th...A new single micro-particle electrode(SMPE)fabrication technique the inlaid SMPE technique was introduced in this paper.The preparation procedure of an alloy SMPE was described in detail.Based on the SMPE technique,the electrochemical behavior of LaNi_ 4.7Al_ 0.3 spherical particles with two different radii was investigated.The results of CV study showed that more detailed electrochemical information of the alloy can be provided on the alloy SMPE as compared with that on the composite alloy electrode.The results of potential step study depict that H diffusion coefficient in LaNi_ 4.7Al_ 0.3 keeps almost constant when the size of the alloy particle changes,and the diffusion coefficient measured on the alloy SMPE[(2.5—2.6)×10-9 cm 2/s] is about one order larger than that detected on the composite alloy electrode.展开更多
弹簧是一种利用弹性来工作的机械零件,在各型号的起落架制造中被广泛使用。某型号起落架首次选用0Cr17Ni7Al材料的不锈钢丝制造拉伸弹簧,该材料具有较高的抗拉强度、优良的耐高温和耐蚀性能,可以在海洋气候等复杂环境以及300℃左右的工...弹簧是一种利用弹性来工作的机械零件,在各型号的起落架制造中被广泛使用。某型号起落架首次选用0Cr17Ni7Al材料的不锈钢丝制造拉伸弹簧,该材料具有较高的抗拉强度、优良的耐高温和耐蚀性能,可以在海洋气候等复杂环境以及300℃左右的工作环境条件下使用,但无成熟经验可借鉴。为解决由于经验不足而引起的弹簧加工质量问题,采用分组试验的方法,研究了Φ4.5 mm 0Cr17Ni7Al不锈钢丝性能与时效强化参数的关系,以及加工工艺流程对弹簧加工质量的影响。结果表明:在经过2次时效强化处理的条件下,拉伸弹簧采用多步成型方法,获得较高抗拉强度的同时,可以进一步减小拉伸弹簧变形,提高加工合格率。该方法可用于指导同类型弹簧的加工及制造。展开更多
文摘A new single micro-particle electrode(SMPE)fabrication technique the inlaid SMPE technique was introduced in this paper.The preparation procedure of an alloy SMPE was described in detail.Based on the SMPE technique,the electrochemical behavior of LaNi_ 4.7Al_ 0.3 spherical particles with two different radii was investigated.The results of CV study showed that more detailed electrochemical information of the alloy can be provided on the alloy SMPE as compared with that on the composite alloy electrode.The results of potential step study depict that H diffusion coefficient in LaNi_ 4.7Al_ 0.3 keeps almost constant when the size of the alloy particle changes,and the diffusion coefficient measured on the alloy SMPE[(2.5—2.6)×10-9 cm 2/s] is about one order larger than that detected on the composite alloy electrode.
文摘弹簧是一种利用弹性来工作的机械零件,在各型号的起落架制造中被广泛使用。某型号起落架首次选用0Cr17Ni7Al材料的不锈钢丝制造拉伸弹簧,该材料具有较高的抗拉强度、优良的耐高温和耐蚀性能,可以在海洋气候等复杂环境以及300℃左右的工作环境条件下使用,但无成熟经验可借鉴。为解决由于经验不足而引起的弹簧加工质量问题,采用分组试验的方法,研究了Φ4.5 mm 0Cr17Ni7Al不锈钢丝性能与时效强化参数的关系,以及加工工艺流程对弹簧加工质量的影响。结果表明:在经过2次时效强化处理的条件下,拉伸弹簧采用多步成型方法,获得较高抗拉强度的同时,可以进一步减小拉伸弹簧变形,提高加工合格率。该方法可用于指导同类型弹簧的加工及制造。
