arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1209.0323cond-mat.mtrl-sci
收藏

关于最近提出的V、Nb和Ta中的类马氏体结构转变

On the recently proposed martensitic-like structural transformation in V, Nb, and Ta

F. Cordero

摘要:

最近的公告[物理学评论Lett。107,075503,(2011)],在热膨胀异常之后,根据对具有可比纯度的Nb样品的滞弹性测量,讨论了纯Nb、Ta和V中先前未知的马氏体转变。它的结果是,所谓的转变的影响的滞弹性谱将是至少三个数量级小于典型的马氏体相变。一个可能的替代解释所观察到的异常提出了未被注意的残留H沉淀。

英文摘要:

A recent announcement [Phys. Rev. Lett. 107, 075503, (2011)], after anomalies in the thermal expansion, of a previously unknown martensitic transformation in pure Nb, Ta and V is discussed in the light of anelastic measurements on Nb samples with comparable purities. It results that the effects of the alleged transformation on the anelastic spectra would be at least three orders of magnitude smaller than in typical martensitic transformations. A possible alternative explanation for the observed anomalies is proposed in terms of precipitation of unnoticed residual H.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑