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首页> 外文期刊>Journal of Materials Engineering and Performance >HSLA-100 steels: influence of aging heat treatment on microstructure and properties
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HSLA-100 steels: influence of aging heat treatment on microstructure and properties

机译：HSLA-100钢：时效热处理对组织和性能的影响

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The structural steels used in critical construction applications have traditionally been heat-treated low-alloy steels. These normalized and/or quenched and tempered steels derive strength from their carbon contents. Carbon is a very efficient and cost-effective element for increasing strength in ferrite-pearlite or tempered martensitic structures, but it is associated with poor notch toughness. Furthermore, it is well known that both the overall weldability and weldment toughness are inverselyrelated to the carbon equivalent values, especially at high carbon contents. The stringent control needed for the welding of these traditional steels is one of the major causes of high fabrication costs.In order to reduce fabrication cost while simultaneously improving the quality of structural steels, a new family of high-strength low-alloy steels with copper additions (HSLA-100) has been developed. The alloy design philosophy of the new steels includes a reduction in the carbon content, which improves toughness and weldability.
机译：关键建筑应用中使用的结构钢传统上是经过热处理的低合金钢。这些正火和/或调质钢从其碳含量中获得强度。碳是增加铁素体-珠光体或回火马氏体组织强度的一种非常有效且具有成本效益的元素，但它与较低的缺口韧性有关。此外，众所周知，总体可焊性和焊件韧性都与碳当量值成反比，特别是在高碳含量下。这些传统钢焊接所需的严格控制是高制造成本的主要原因之一。为了降低制造成本并同时提高结构钢的质量，新的高强度低合金钢铜系列已开发了附加产品（HSLA-100）。新型钢的合金设计理念包括降低碳含量，从而提高韧性和可焊性。

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