853 TiNi 形状記憶合金薄板の X 線残留応力測定

概要

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The residual stress measurement of the rolled thin plate TiNiSMA was conducted by the (sin)^2⩛ method with Fe target using the X-ray apparatus of RINT2000 (Rigaku Co. Ltd.). For the rotation angle α=0°, 30°, 60°, 90° in the direction of the specimen axis, stress measurement was done in two cases which the specimen was unloaded and loaded (about 200MPa). The diffraction intensity became smaller for all diffraction angle 2θ with the increase of rotation angle α in the case of no loading. Rolled TiNi alloy estimated to have textured polycrystalline structure showed complicated diffraction behavior. Two peaks lower side and higher side in the diffraction curve sharply increased in the condition α>60°. Measured tensile residual stresses for the higher angle side peaks showed more stable values than for the lower angle side peak.
一般社団法人日本機械学会の論文
2003-08-05