Determination and Analysis of Hardenability for Hot-Forging Die Steels with Deep-Hardening

• 作 者: ZHAO Gang JIANG Min QIN Gao-wu HAO Shi-ming GU Rong DAI Jian-ming
• 机 构: Northeastern University,Research Institute of Fushun Steel Plant,
• 出 处: Journal of Iron and Steel Research(International)
• 发表日期: 2000年01期
• 关键词: hardenability deep-hardening steel hot-forging diesteel tempering resistance

ERH end-quenching method was used to determine the hardenability of four kinds hot-forging die steels with deep-hardening and hence the order of their hardenability was given.The tempering hardness of the steels was measured and the tempering resistance was studied.It was approved that ERH method is effective for the determination of hardenability of deep-hardening steel and the beginning of hardness drop in the ERH specimen is caused by bainite occurring.

ERH end-quenching method was used to determine the hardenability of four kinds of hot-forging die steels with deep-hardening and hence the order of their hardenability was given. The tempering hardness of the steels was measured and the tempering resistance was studied. It was approved that ERH method is effective for the determination of hardenability of deep-hardening steel and the beginning of hardness drop in the ERH specimen is caused by bainite occurring.