Preparation and Properties of Vanadium-titanium-nickel Based Hydrogen Storage Alloys for New Energy Automotive Batteries
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摘要: 采用自蔓延法制备V-25Ti-10Ni和V-25Ti-10Ni-0.5Ce新能源汽车电池用钒钛镍基合金试样,并进行了显微组织、吸氢性能和耐腐蚀性能的测试、对比和分析。结果表明,与V-25Ti-10Ni合金相比, V-25Ti-10Ni-0.5Ce合金的晶粒更细化,在吸氢时间50 min时的吸氢量增大13.38%,经240 h腐蚀后V-25Ti-10Ni-0.5Ce合金的质量损失率减小37.61%,V-25Ti-10Ni-0.5Ce合金的吸氢性能和耐腐蚀性能均得到提高。
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关键词:
- 钒钛镍基储氢合金 /
- V-25Ti-10Ni-0.5Ce /
- 自蔓延 /
- 吸氢性能 /
- 耐腐蚀性能
Abstract: V-25 Ti-10 Ni and V-25 Ti-10 Ni-0.5 Ce alloys for new energy automobile batteries were prepared by self-propagating method,and their microstructures,hydrogen absorption properties and corrosion resistance were tested,compared and analyzed.The results show that the grain of V-25 Ti-10 Ni-0.5 Ce alloy is finer than that of V-25 Ti-10 Ni alloy.In comparison with those of V-25 Ti-10 Ni alloy,the hydrogen absorption capacity of V-25 Ti-10 Ni-0.5 Ce alloy increases by 13.38% at 50 min of hydrogen absorption time,and the mass loss rate of V-25 Ti-10 Ni-0.5 Ce alloy decreases by 37.61% after 240 h of corrosion.Both of the hydrogen absorption and corrosion resistance of V-25 Ti-10 Ni-0.5 Ce alloy are improved. -
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