共查询到10条相似文献,搜索用时 125 毫秒
1.
2.
用X射线衍射技术和穆斯堡尔谱技术,研究了Fe73.5CuMo3Si13.5B9合金的结构和超业细相互作用。该合金的相组成为α-Fe(Si)纳米晶和边界相即五余非晶相。典型纳米晶状态下的穆斯堡尔谱由5条亚谱构成,其中4条亚谱为6峰谱,对应α-Fe(Si)相中的4种不同环境的Fe原子。另1条亚谱对应边界处的非晶相,研究了非晶带材经500-600℃不同温度晶化处理后的穆斯堡尔谱特性。 相似文献
3.
4.
5.
XU Zuxiong MA Ruzhang ZHU Yongquan ZHAO Zhongtao FENG Yongrong Beijing University of Science Technology Beijing China Originally published in ACTA METAIL SIN 《金属学报(英文版)》1989,2(8):138-142
The martensite microstructure,amount of retained austenite and its carbon concentration inthe 40CrNiMo steel quenched at various conditions have been investigated by using trans-mission Mossbauer spectroscopy at room temperature.It was shown that high-temperaturequenching and thermomechanical quenching has little influence on amount of retainedaustenite,thus the toughening effect of quenching was attributed to bulk lath martensite andits refining. 相似文献
6.
实验发现,三元化合物Y_2(Fe_(1-x)Ni_x)_(17)的居里温度T_c随镍含量x变化,当x=0.3时,居里温度呈现极值,T_c=625K。为了研究镍原子部分地替代铁原子后对磁性的影响,取不同镍含量的样品,用X射线测定了易磁化方向,并在高于70千奥斯特的强磁场下,测量了饱和磁化强度随镍含量x的变化。为了研究镍原子在此种晶体中是否有序分布在特定位置上,观测和对比了Y_2Fe_(17)和Y_2(Fe_(0.9)Ni_(0.1))_(17)的穆斯保尔谱线。根据所得的实验结果,分析了居里温度随镍含量变化的原因。 相似文献
7.
G.V. IvanovaN.N. Shchegoleva V.V. SerikovN.M. Kleinerman E.V. Belozerov 《Journal of Alloys and Compounds》2011,509(5):1809-1814
Structure of a metastable W-enriched nanophase that is formed in Fe-Co-Cr-W-Ga alloys has been studied using X ray, electron microscopy, and Mossbauer spectroscopy methods. The phase is established to possess a body-centered-tetragonal crystal lattice with the lattice parameters а ≈ 2.96 Å, с ≈ 3.17 Å. The orientational relationships between its lattice and that of the matrix α-Fe based solid solution are determined. It is shown that the phase contains iron, tungsten, and plausibly chromium, being quite inhomogeneous in composition. Moreover, it is likely to be of a variable composition. At room temperature the phase is paramagnetic. 相似文献
8.
Z.X Qinand Y.S. Zhang 《金属学报(英文版)》1997,10(3):219-223
1.IntroductionTherehavebeenextensivestudies0ntheN6eltransiti0n,ry-Etransf0rmati0nandshapemem0ryeffect(SME)ofry-Fe-MnorFe-Mn-Siall0ys[1-1o].WithincreasingMncontent,N6eltemperaturerisesandtheausteniteisstabilizedagainstry-emartensitictransformati0nduringcoolingl1,2].SiliconreducestheN6eltemperatureandstackingfaultenergy(SFE),whichmakethery-etransf0rmationeasierl4'5].The7-Fe-3OMn-Calloysareanitineralltcharacteristicantiferr0magneticalloy,andtheadditi0nofs0mesiliconinto7-Fe-30MnaJl0ywoul… 相似文献
9.