研制出一种工艺性能良好的含稀土钇的堆焊焊条，对其堆焊层显微组织结构、硬度、耐磨性进行了较系统的试验研究。
Yttrium contained hardfacing electrode with good process properties were made and the structure, hardness and abrasive resistance in hardfacing layer were studied.
对含镍3．5％低温钢手工电焊条配方中稀土钇与硼的作用进行了试验研究。
The investigation of effects of rare-earth yttrium and boron, which are in the 3.5% nickel-containing steel welding electrode on low temperature toughness has been carried out.
用降解法或直接法合成了未见报道的四种含钇多元杂多配合物。
Four heteropoly complexes containing yttrium were synthesized by means of degradation or direct synthesis and were reported in this paper for the first time.
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