Key parameters for low temperature warm compaction of high density iron-based P/M materials^①

来源期刊：中南大学学报(英文版)2005年第4期

论文作者：曹顺华 林信平 李炯义 谢湛 蔡志勇

文章页码：359 - 365

Key words：iron-based P/M materials; low temperature warm compaction; lubricating mode

Abstract: In order to reduce powder temperature to lower than 100℃in warm compaction by changing polymer lubricant design, powder flowability, warm compacting behavior, lubricating mode as well as ultimate tensile strength after sinter-hardening and tempering were investigated systematically. By means of low temperature warm pressing and sintered hardening technique, samples with the sintered densities of 7.40 7.45 g/cm3and the strengths of 950 1 390 MPa are achieved as the early compacting pressure is 686 735 MPa.