杨继兰 蒋元凯 顾剑锋 郭正洪 陈海龑. 奥氏体化温度对中碳淬火-配分钢干滑动摩擦磨损性能的影响?[J]. 金属学报, DOI: 10.11900/0412.1961.2017.00129.

摘要 相关文章 Metrics 全文: PDF(2162 KB)   摘要:  对中碳Fe-0.4 C-1.5 Mn-1.5 Si钢，以传统的淬火-回火试样作对比，研究了三种奥氏体化温度处理后淬火-配分试样的干滑动摩擦磨损性能。结果发现，860 ?C和1000 ?C全奥氏体化处理的两种淬火-配分试样中残余奥氏体的含量相近(分别为~14.37 vol.%和~13.79 vol.%)，其内的碳浓度较高(分别为1.37 wt.%和1.38 wt.%)，机械稳定性较强。在恒定低载荷(50 N)和恒定低滑动速度条件(40 mm/s)下，摩擦过程中不易诱发马氏体相变，导致两种试样的耐摩擦摩损性能均很低。受显微组织细化影响，奥氏体化温度较低的试样具有更高的耐摩性。当奥氏体化温度降低到800 ?C时，获得临界淬火-配分的试样。显微组织分析表明，该试样中不仅包含少量的铁素体(~6.75 vol.%)，而且存在最高含量的残余奥氏体(~22.28 vol.%)，使得在四组试样内的显微硬度值最低。但由于低的碳浓度(~1.06 wt.%)，残余奥氏体的机械稳定性较弱，在摩擦过程中易诱发马氏体相变，不仅贡献额外的硬化，而且马氏体相变体积膨胀引起的材料表面层压应力对提高耐磨性也有利，由此导致临界淬火-配分试样表现出最好的耐磨损性能。因此，在给定的摩擦参数条件下，残余奥氏体对马氏体钢抗磨损性能的影响主要决定于在摩擦过程中是否能经相变而引起附加的硬化作用。 关键词 ： 中碳淬火-配分钢,  干滑动摩擦,  摩擦磨损,  残余奥氏体,  马氏体相变     Abstract：Effect of retained austenite on the wear property of martensitic steel is still in controversial by now. Selecting traditional quenching and tempering (Q&T) sample with identical composition Fe-0.4C-1.5Mn-1.5Si as reference, the dry sliding wear property of quenching and partitioning (Q&P) samples with different austenitization temperatures was studied. The results show that the volume faction of retained austenite in the Q&P samples with full austenitization at 860 ?C or 1000 ?C respectively is nearly same (~14.37 vol.% in the former and ~13.79 vol.% in the later). The corresponding carbon concentration in retained austenite is relatively high (1.37 wt.% in the former and 1.38 wt.% in the later). Therefore, its mechanical stability is very strong. Under the conditions of constant low loading (50 N) and slide speed (40 mm/s), it is not easy to induce martensitic transformation. Which results in the low friction and wear resistance of these two kinds of samples. The slight better in wear resistance of samples with low austenitization temperature can be attributed to the microstructural refinement. When the austenitization temperature was reduced to 800 ?C, the critical Q&P samples were obtained. Microstructure analysis indicates there exist the highest volume fraction of retained austenite (~22.28 vol.%) plus a small amount of ferrite (~6.75 vol.%) in martensitic matrix, which results in the lowest microhardness among present four kinds of samples. However, the mechanical stability of these retained austenites is weak due to low carbon concentration (~1.06 wt.%). The obvious martensitic transformation occurred accompanying sliding wear, contributing to extra hardening and providing additional compressive stress on the touching surface caused by volume expansion. Therefore, the critical Q&P samples with austenitization temperature at 800 ?C exhibit the best wear resistance among present four kinds of samples. Based on experimental results, it is true that it is the weak mechanical stability, but not the amount only, of retained austenite in martensitic steel, plays critical role in improving wear resistance by additional hardening from martensitic transformation. Key words： medium carbon quenching-partitioning steel    dry sliding wear    wear and abrasion    retained austenite    martensitic transformation 收稿日期: 2017-04-14      基金资助:国家自然科学基金项目 服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 杨继兰 蒋元凯 顾剑锋 郭正洪 陈海龑 44.8K 链接本文: https://www.ams.org.cn/CN/Y0/V/I/0 [1] 张国涛, 马镇, 李其龙, 李聪敏, 马涛, 马少波, 尹延国. 20CrMnTi齿轮钢表面FeS涂层的干摩擦性能[J]. 金属学报, 2025, 61(8): 1256-1266. [2] 臧勃林, 杨延格, 曹京宜, 徐锋锋, 姚海华, 周正. 双非晶相铁基复合涂层的腐蚀与磨损行为[J]. 金属学报, 2025, 61(8): 1267-1275. [3] 孙欢腾, 马运柱, 蔡青山, 王健宁, 段有腾, 张梦祥. fcc和bcc钢板在超高速撞击下的微观组织差异[J]. 金属学报, 2025, 61(7): 1011-1023. [4] 杨康, 辛越, 姜自滔, 刘侠, 薛召露, 张世宏. 纳米ZrB2 增强CoNiCrAlY复合粉末的机械合金化制备及其涂层的组织与性能[J]. 金属学报, 2025, 61(4): 619-631. [5] 贾春妮, 刘腾远, 郑成武, 王培, 李殿中. 中锰钢奥氏体中化学界面变形行为的晶体塑性研究[J]. 金属学报, 2025, 61(2): 349-360. [6] 张光莹, 李岩, 黄丽颖, 定巍. 连续屈服、高强屈比中锰钢的工艺设计与组织调控[J]. 金属学报, 2024, 60(4): 443-452. [7] 胡宝佳, 郑沁园, 路轶, 贾春妮, 梁田, 郑成武, 李殿中. 冷轧中锰钢的再结晶调控及其对力学性能的影响[J]. 金属学报, 2024, 60(2): 189-200. [8] 杨谨菡, 闫海乐, 刘昊轩, 赵莹, 杨一俏, 赵骧, 左良. A2BTi型磁性功能合金相稳定性、磁性与力学性能的第一性原理计算和实验研究[J]. 金属学报, 2024, 60(12): 1701-1709. [9] 谢泽东, 丁灿灿, 温鹏宇, 罗海文. 闪速加热对2000 MPa级热成形钢显微组织和力学性能的影响[J]. 金属学报, 2024, 60(12): 1667-1677. [10] 张超, 熊志平, 杨德振, 程兴旺. 非均质Mn分布对淬火-配分钢微观组织和力学性能的影响[J]. 金属学报, 2024, 60(1): 69-79. [11] 冯力, 王贵平, 马凯, 杨伟杰, 安国升, 李文生. 冷喷涂辅助感应重熔合成AlCo x CrFeNiCu高熵合金涂层的显微组织和性能[J]. 金属学报, 2023, 59(5): 703-712. [12] 苗军伟, 王明亮, 张爱军, 卢一平, 王同敏, 李廷举. AlCr1.3TiNi2 共晶高熵合金的高温摩擦学性能及磨损机理[J]. 金属学报, 2023, 59(2): 267-276. [13] 姜江, 郝世杰, 姜大强, 郭方敏, 任洋, 崔立山. NiTi-Nb原位复合材料的准线性超弹性变形[J]. 金属学报, 2023, 59(11): 1419-1427. [14] 李伟, 贾兴祺, 金学军. 高强韧QPT工艺的先进钢组织调控和强韧化研究进展[J]. 金属学报, 2022, 58(4): 444-456. [15] 原家华, 张秋红, 王金亮, 王灵禺, 王晨充, 徐伟. 磁场与晶粒尺寸协同作用对马氏体形核及变体选择的影响[J]. 金属学报, 2022, 58(12): 1570-1580. Viewed Full text Abstract Cited   Shared      Discussed