G,V,Kurdyumov Institute for Metal Physics, NAS of Ukraine, Vernadsky blvd, 36, Kiev 03680, Ukraine.
Nanoscale Res Lett. 2014 Feb 24;9(1):92. doi: 10.1186/1556-276X-9-92.
The effect of martensite transformations of different types on the misorientation of austenite crystalline lattice, which characterizes the degree of structure fragmentation, was investigated for Fe-Ni and Fe-Mn alloys. As a result of multiple face-centered cubic (f.c.c.)-body-centered cubic (b.c.c.)-f.c.c. transformations, an austenite single-crystalline specimen is transformed in a polycrystalline one due to progressive fragmentation. It was shown that the degree of fragmentation depends on the magnitude of volume change and the density of dislocations generated on martensitic transformations.
研究了不同类型马氏体相变对奥氏体晶格取向的影响，该取向表征了结构碎化的程度，研究对象为 Fe-Ni 和 Fe-Mn 合金。由于多次面心立方（f.c.c.）-体心立方（b.c.c.）-面心立方（f.c.c.）相变，奥氏体单晶试样由于逐渐碎化而转变为多晶试样。结果表明，碎化程度取决于体积变化的大小和马氏体相变产生的位错密度。
