论文部分内容阅读
用磁性测量、透射电镜、穆斯堡尔效应和磁畴观察(静态与准静态)等方法研究了Fe—23Cr—15Co—2Mo—0.5Ti合金在磁场处理和等级时效过程中的Spinodas分解和磁硬化。实验结果表明,合金的调幅分解是连续地进行的,没有明显的阶段性。分解后显微组织也是不均匀的,从而限制了含金矫顽力的提高。等级时效前,α_1相和α_2相都是铁磁性的,合金是多畴体,合金的矫顽力是畴壁位移决定的,而等级时效后,α_2相区已变成非铁磁性。合金内部存在相互作用畴。但合金的矫顽方是由单畴粒子的磁矩转动来决定。
Spinodas decomposition and magnetic properties of Fe-23Cr-15Co-2Mo-0.5Ti alloy during magnetic field treatment and grade aging were studied by means of magnetic measurement, TEM, Mossbauer effect and magnetic domain observation (static and quasi-static) hardening. The experimental results show that the amplitude modulation decomposition of the alloy is carried out continuously, there is no obvious stage. Microstructure after decomposition is also uneven, which limits the increase of coercive force of gold. Before grade aging, both α_1 phase and α_2 phase are ferromagnetic, and the alloy is multidomain. The coercive force of the alloy is determined by the displacement of the domain wall, and the α_2 phase region has become nonferromagnetic after the grade aging. There are interaction domains inside the alloy. However, the coercive force of the alloy is determined by the rotation of the magnetic moment of the monodomain particles.