Surface Modification of Steel Powders to Improve Processing and Properties

钢粉表面改性以改善加工和性能

• 批准号: 485978-2015
• 负责人: Drew, Robin
• 金额: $ 1.82万
• 依托单位: Concordia University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=585320
• 关键词: Surface; Modification; Steel; Powders; Improve

Powder metallurgy is a common manufacturing route to mass-produce small to medium size complex shapes. Components are made net-shape through a compaction and sintering process and are typically made from steel or iron powders. Steel powders offer superior mechanical properties and it is the endeavor and Holy Grail of the manufacturer to attain properties close to those of wrought material. Elemental additives, such carbon, copper and nickel, are introduced as powders to improve the properties and aid in the compaction and sintering process. Lubricants and binders are also added at the compaction stage and must be removed during subsequent heat treatment. The current proposal is to explore the replacement of these additives by coatings with the goal to improve the processing and mechanical properties of the powder metallurgy parts.

粉末冶金是大规模生产中小型复杂形状的常见制造路线。 部件通过压实和烧结工艺制成净形，通常由钢制成 或铁粉。钢粉具有上级机械性能，是钢铁行业的奋进和圣杯。 制造商获得接近锻造材料的性能。元素添加剂，如碳， 铜和镍作为粉末引入，以改善性能并有助于压实和烧结 过程润滑剂和粘合剂也在压实阶段添加，并且必须在随后的压实阶段去除。 热处理工艺目前的建议是探索用涂料替代这些添加剂，目标是 以改善粉末冶金零件的加工性能和机械性能。