HSLA-100 steels: Influence of aging heat treatment on microstructure and properties
HSLA-100 steels: Influence of aging heat treatment on microstructure and properties
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DOI：
10.1361/105994998770347981
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发表时间：
1998-04-01
影响因子：
2.3
通讯作者：
DeArdo, AJ
中科院分区：
文献类型：
--
作者：
Mujahid, M;Lis, AK;DeArdo, AJ
在关键建筑应用中使用的结构钢传统上是热处理的低合金钢。这些正火和/或淬火和回火钢从其碳含量获得强度。碳是用于增加铁素体-珠光体或回火马氏体结构中的强度的非常有效且成本有效的元素，但其与差的缺口韧性相关。众所周知，总体可焊性和焊件韧性都与碳当量值成反比，尤其是在高碳含量下，这些传统钢材的焊接需要严格的控制是制造成本高的主要原因之一。为了降低制造成本，同时为了提高结构钢的质量，开发了一种新的含铜高强度低合金钢（HSLA-100）。这种新钢的合金设计原理包括减少碳含量，从而提高韧性和可焊性。
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 inversely related 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.