Galling resistance and wear mechanisms for cold-work tool steels in lubricated sliding against high strength stainless steel sheets
- 作者：Patrik Karlsson ; patrik.karlsson@kau.se ; Anders Gå ; å ; rd ; Pavel Krakhmalev ; Jens Bergströ ; m
- 关键词：Galling ; Wear ; Tribology ; Stainless steel ; Tool steel
- 刊名：Wear
- 出版年：2012
- 期刊代码：183_00431648
- 类别：et
- 出版时间：15 May, 2012
- 卷：286-287
- 期：Complete
- 页码：92-97
- 文件大小：2251 K
摘要
Tool damage in sheet metal forming of stainless steel is of high concern for the forming industry. In the present work, ingot cast AISI D2 and advanced powder metallurgy tool steel (PM) cold-work tool steels were evaluated and ranked regarding wear mechanisms and galling resistance. Wear tests were performed using a slider-on-flat-surface (SOFS) tribometer in sliding against austenitic-ferritic (duplex) stainless steel sheets at different contact pressures in lubricated conditions. The best galling resistance was observed for the nitrogen alloyed PM tool steels. Abrasive scratching of the tool surfaces and transfer of sheet material due to adhesive wear were the main metal forming tool surface damage mechanisms. By increasing the hardness of one PM sheet metal forming tool grade, the galling resistance was enhanced.