HIGH TOUGHNESS TREATMENT OF EXTRUSION DIE STEEL 3Cr2W8V FOR ALUMINIUM SECTIONS

Acta Metall Sin

1996, Vol. 32

Issue (9): 985-992 DOI:

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HIGH TOUGHNESS TREATMENT OF EXTRUSION DIE STEEL 3Cr2W8V FOR ALUMINIUM SECTIONS

LIU Jing'an (Southwest Aluminium Fabrication Plant; Chongqing 631326)

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LIU Jing'an (Southwest Aluminium Fabrication Plant; Chongqing 631326). HIGH TOUGHNESS TREATMENT OF EXTRUSION DIE STEEL 3Cr2W8V FOR ALUMINIUM SECTIONS. Acta Metall Sin, 1996, 32(9): 985-992.

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Abstract Based on the high toughness mechanism, the relationships between heat treatment processes and the microstructure, fracture, characteristics, and mechanical properties at room and high temperatures of extrusion die steel 3Cr2W8V were studied. The results showed that by employing the process of super-high temperature quenching (over 1250℃) and medium temperature tempering (400-500℃), the extruion die steel 3Cr2W8V can obtained good comprehensive properties, including high toughness, thermo-strength, thermo-stability, thermal fatigue and abrasion resistance etc.

Key words: steel 3Cr2W8V high toughness treatment mechanical property microstructure

Received: 18 September 1996

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1996/V32/I9/985

1刘静安．轻合金挤压工具与模具,上册．北京:冶金工业出版社,1989:1102刘静安．挤压模具技术的理论与实践．重庆:中国科技文献出版社重庆分社,1989:144,1563刘静安．汪凌云．铝加工,1990;(3):14易文质．模具热处理．长沙:湖南科技出版社,1981:455曹登驹．重庆大学硕士学位论文,19906蒋昌生编．模具材料及使用寿命．南昌:江西人民出版社,1982:1457刘静安．轻合金挤压工具与模具,下册．北京:冶金工业出版社,1990:124

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