Microstructure and Mechanical Properties of Pipe Shaped Spheroidal Graphite Cast Iron Bonded by Friction Welding Method

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  • 摩擦圧接した管状球状黒鉛鋳鉄の組織と機械的性質
  • マサツ アッセツシタ カンジョウ キュウジョウ コクエン チュウテツ ノ ソシキ ト キカイテキ セイシツ

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Abstract

  Friction welding of pipe shaped spheroidal graphite cast iron was carried out under welding conditions such as peripheral speed (rotational speed), friction pressure, friction time and forge pressure. The dimensions of the test pieces were 42mm in outside diameter and 28mm in inside diameter respectively. As a result, tensile strength increased with increasing peripheral speed, friction pressure, friction time, and forge pressure. High tensile strength specimens were broken on the base metal. On the other hand, tensile strength decreased with increasing layer of deformed spheroidal graphite.

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