{"id":549,"date":"2025-01-23T09:37:18","date_gmt":"2025-01-23T09:37:18","guid":{"rendered":"https:\/\/expanite.comen\/?page_id=549"},"modified":"2026-08-13T06:58:21","modified_gmt":"2026-08-13T06:58:21","slug":"nickel-based-alloys","status":"publish","type":"page","link":"https:\/\/expanite.com\/it\/le-soluzioni-indurimento-superficiale\/indurimento-superficiale-delle-leghe-a-base-di-nichel\/","title":{"rendered":"Indurimento superficiale delle leghe a base di nichel"},"content":{"rendered":"

Surface Hardening of Nickel-Based alloys<\/h1>\n

Sustainable Surface Hardening & Heat Treatment for Ni-Based Alloys<\/h2>\n
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Surface hardening of nickel-based alloy<\/a> is, like with stainless steel, a heat treatment technique that only very few companies master, and nobody does it like Expanite. Expanite\u2019s patented and proven technology, scientific know-how and flexible delivery model significantly improves product performance, quality, and reduces costs.<\/p>\n<\/div>\n

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The Expanite hardening processes effectively removes the oxide film protecting the alloy. This allows for controlled diffusion of nitrogen and carbon atoms in the underlying metal. The hardened layer is characterized by an expansion of the material structure, and even we refer to this zone as expanded austenite, or simply, Expanite\u00ae.\u00a0<\/p>\n<\/div>\n

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Sustainability Might Be a Choice, But With Expanite It\u00b4s a Given!<\/h2>\n
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Sustainability has since the foundation of the company been close to the hearts of the founders. Not only is the sole purpose of the treatments aimed at extending lifetime of components and systems, the \u201cpath\u201d to achieve this life-extending state is more sustainable compared to alternative\/competitive products: the ultra-short processing times yielding lowest possible carbon footprint, the lack of chemicals used before & after processing, and the non-toxic-waste processing are all core elements of Expanite\u2019s technology, not a choice!<\/p>\n<\/div>\n

Dedicated Process to Prevent Wear & Galling on Many Alloys<\/h2>\n
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The process for nickel-based alloys is typically ExpaniteLow-T, and this is applicable for the most common nickel-based alloys families including Inconel\u00ae, Hastelloy\u00ae and Monel. The outcome is a significant improvement in wear and galling resistance due to a surface hardness of approx. 700-1500HV.(Download test results)<\/a><\/p>\n

In most cases, Expanite\u2019s solutions for surface hardening of nickel-based alloys is used for customers who today are using coatings or lubricants to avoid galling, but need a cleaner and better-performing solution.<\/p>\n<\/div>\n

Introduction to Nickel-based Alloys<\/h2>\n
Nickel-based alloys are materials that are composed mainly of nickel and some other elements. Ni-based alloys are known for their excellent corrosion resistance and strength. They are often found in high-temperature environments due to their superior resistance to heat. Some of the most known nickel-based alloys families are Inconel\u00ae, Hastelloy\u00ae and Monel but several other manufactures and alloys are available. The most common nickel-based alloys are:<\/div>\n