1901 TiNiの疲労き裂伝ぱにおよぼすマルテンサイトの影響(S17-1 形状記憶合金の特性と応用化技術(1),S17 形状記憶合金の特性と応用化技術)

概要

論文の詳細を見る
Stress-induced martensitic transformation distribution at crack tip was investigated in shape memory alloy TiNi by neutron diffraction method. The results of the smooth specimen show that the intensity of diffraction from stress-induced martensitic phase was different in the longitudinal and transverse directions depending on the diffraction planes. The strain of austenitic phase decreased in the longitudinal direction and increased in the transverse direction in spite of the tensile applied stress in the range of the martensitic transformation. The results in cracked specimen shows that stress-induced martensitic phase extends about 1000mm at crack tip under the stress intensity factor of 1.6 MPa√ m in the triaxial stress condition.
一般社団法人日本機械学会の論文
2005-09-18