高温顕微鏡用引張・圧縮試験機の特性と冶金学的応用

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タイトル別名
  • Functional Features of Hard Tension/Compression Tester Developed for High Temperature Microscope and its Metallurgical Applications
  • コウオン ケンビキョウヨウ ヒッパリ アッシュク シケンキ ノ トクセイ ト

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抄録

A hard tension/compression tester has been constructed in the specimen holder of a high temperature microscope, without any interference with the functional features of the microscope including the side-entry goniostage. A noticeable advantage of the microscope was the in-situ observation of metallurgical phenomena at every stage of the load-elongation curves at high temperatures. The specific features are as follows:<BR>(1) The standard specimen for tension/compression test is 5 mm in gauge length, 2 mm in width and 0.5∼1 mm in thickness.<BR>(2) The maximum load is 100 kg.<BR>(3) The maximum stroke is 5 mm.<BR>(4) The cross head displacement speed is kept at the given value in six steps such as 0.025,0.020,0.015,0.010,0.005 and 0.0025 mm/s during elongation of specimens, independently of changing load.<BR>(5) The spring constant of the tester is estimated larger than 700 kg/mm or 7×106 N/m<BR>This tester was successfully applied to observing and recoding metallugical phenomena such as formation of the strain-induced martensite at 250°C in Fe-22%Ni alloy and the giant slip bands at 450°C during the serrated elongation of Cu-10 at%Al single crystal.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 43 (6), 563-568, 1979

    公益社団法人 日本金属学会

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