T10钢激光淬火组织及耐磨性的研究

• 作 者: 胡建东 李章 王玉芬 王红颖 吕健 王力光
• 机 构: 吉林工业大学,吉林省质检所,
• 出 处: 金属热处理学报
• 发表日期: 1990年02期
• 关键词: 激光淬火 T10钢 残余奥氏体 耐磨性能 针状马氏体 奥氏体转变 激光热处理 磨损过程 固态相变 磨损体积

T10钢激光淬火区由熔化层、固态相变层及热影响区所组成。前两层内的组织是针状马氏体和残余奥氏体,残余奥氏体体积百分数为10%,其含碳量约1.0%。大部分残余奥氏体可在液氮冷却或磨损过程中转变成马氏体。激光淬火组织的耐磨性明显高于正常淬火者。经高温回火后,激光淬火组织仍保持良好的硬度及耐磨性,这种组织的稳定性可能与大量残余奥氏体的存在有关。

T10 steel laser quenching zone by the melting layer, solid phase change layer and heat affected zone. The first two layers of the organization is acicular martensite and retained austenite, the residual austenite volume percentage of 10%, its carbon content of about 1.0%. Most of the residual austenite can be transformed into martensite during liquid nitrogen cooling or abrasion. The wear resistance of laser quenched structure is obviously higher than that of normal quenched. After tempering at high temperature, the laser quenched microstructure remains good hardness and wear resistance, the stability of this organization may be related to the presence of large amounts of residual austenite.