WC-高クロム鋳鉄系焼結硬質材料の鋳ぐるみ接合性 Joined Properties of the Inserted WC-(High Chromium Cast Iron)Alloys
In the application of hard materials as a part of wear-resistant components, casting by inserting WC-based cemented carbide presents difficulties.<BR>In a previous paper we reported that a WC-(high chromium cast iron) alloy, developed with the aim of improving the insertion property of WC-based hard materials by replacing the cobalt binder in WC-based cemented carbide with high chromium iron, had powder injection abrasion properties similar to those of the conventional WC-based cemented carbide.<BR>In this paper, we report on the insertion bonding property of that WC-(high chromium cast iron) alloy. We obtained the following results to insert WC-(high chromium cast iron) alloy by high chromium cast iron.<BR>(1) The WC-(high chromium cast iron) alloy was confirmed to have better insertion properties than the conventional WC-based cemented carbide, but fine cracks were observed at the joint.<BR>(2) When the WC-(high chromium cast iron) alloy was treated by applying a cast iron coating to its surface prior to insertion, no cracks were observed at the joint and the good joint strength was obtained.
粉体および粉末冶金 45(5), 464-468, 1998-05-15
Japan Society of Powder and Powder Metallurgy