文章信息/Info

Title:

Surface Gradient Oxygen-Charging Strengthening of Metals

文章編號:

1674-3962(2024)11-0995-12

作者:

王佩; 林希衡; 韓衛忠

西安交通大學,金屬材料強度國家重點實驗室陜西 西安 710016

Author(s):

WANG Pei;  LIN Xiheng;  HAN Weizhong

State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710016, China

關鍵詞:

金屬; 滲氧; 表面強化; 氧梯度; 固溶強化

Keywords:

metals;  oxygen charging;  surface strengthening;  oxygen gradient;  solution strengthening

分類號:

TG178

DOI:

10.7502/j.issn.1674-3962.202303014

文獻標志碼:

A

摘要:

金屬材料的表面強化技術包括表面化學熱處理技術、表面淬火強化技術、表面涂層強化技術、表面形變強化技術和表面劇烈塑性變形技術等，著重推介了一種全新的表面強化技術——金屬表面梯度滲氧強化。金屬表面梯度滲氧強化技術有別于傳統的滲碳、滲氮和熱氧化技術，是一種提高金屬材料表面性能的經濟且高效的新方法。首先回顧了金屬表面熱氧化及氧擴散技術的發展歷史、應用現狀和潛在不足，隨后詳細介紹了近年發展起來的新型金屬表面梯度滲氧強化技術，并闡明該技術的滲氧機理和固溶氧強化原理。金屬表面梯度滲氧強化技術具有適用范圍廣、滲氧效率高、強韌化效果顯著、工藝簡單、成本低廉、經濟環保、節能高效和生物相容性強等優點，是一種極具發展潛力的新型金屬表面強化技術。

Abstract:

The surface strengthening technology of metals includes surface chemical heat-treatment, surface quenching strengthening, surface coating strengthening, surface deformation strengthening and surface severe plastic deformation. This paper focuses on introducing a brand-new surface strengthening technology: surface gradient oxygen-charging strengthening. Different from the traditional carburization and nitriding technologies, the surface gradient oxygen-charging technology is an economic and efficient new way to improve the surface properties of metals. This paper first reviews the development history,application status and shortcomings of the thermal oxidation and oxygen diffusion hardening methods. Then the paper introduces the newly developed surface gradient oxygen-charging technology in detail, and expounds the underlying oxygen-diffusion mechanism and solid solution hardening mechanism. The surface gradient oxygen-charging strengthening technology has the advantages of wide application range, high oxygenation efficiency, significant strengthening and toughening effect, simple processing, low cost, economic, energy saving and good biocompatibility. It has a great application potential as a new way of surface strengthening of metals.