中性子回折による残留オーステナイトの体積率と炭素含有量測定(相変態・材料組織)

概要

論文の詳細を見る
The time-of-flight method of neutron diffraction was employed to measure the volume fraction and carbon concentration of the retained austenite in four TRIP-DP steels. The results obtained before and after tensile deformation are compared with those measured by the conventional X-ray diffraction method. It is found that the neutron diffraction method is superior to X-ray in order to evaluate the bulky average of volume fraction because the stress-induced martensitic transformation occurs easily at the surface compared with the interior of a specimen. The stress-induced transformation is influenced not only by carbon concentration but also by microstructural topology.
社団法人日本鉄鋼協会の論文
2006-09-01