本发明专利技术涉及一种高耐磨合金钢,该合金钢的重量百分比是,0.45‑0.52%的碳,0.24‑0.25%的硅,0.3‑0.35%的锰,0.3‑0.5%的铬,0.6‑1.0%的镍,0.42%的铜,0.01%的钪,0.01%的钇,0.02%的锆,0.01%的钴,0.03%的钼,0.06%的钴,0.08%的钒,0.6%的钨,0.0001%的钛,0.003%的硼余量为铁。通过正火过程获取大量的珠光基体,并通过选择盐浴等温淬火,使合金钢的奥氏体转变成下贝氏体组织,使得合金硬度、耐磨性能及表面耐热性能均得到很大的提高。
High resistance alloy
The invention relates to a high wear resistant alloy steel, the alloy steel weight percentage is 0.45 0.52% carbon, 0.24 0.25% silicon, 0.3 0.35% manganese, 0.3 0.5% chromium, 0.6 1% nickel, 0.42% copper, 0.01% SC, 0.01% y, 0.02% zirconium 0.01% of the 0.03% cobalt, molybdenum, cobalt 0.06%, 0.08% V, 0.6% w, 0.0001% titanium, 0.003% iron boron allowance. Get a pearl matrix by normalizing process, and through the selection of austempering, the alloy steel austenite into bainite alloy, the hardness, wear resistance and surface heat resistance were improved greatly.
【技术实现步骤摘要】
本专利技术涉及金属材料,尤其是涉及一种高耐磨合金钢。
技术介绍
汽车发动机配套部件,不仅在结构强度与功能上有较高的要求,同时在机械加工上同样重要,这样的要求不仅是满足汽车使用上的基本条件,同时也是安全可靠延长使用寿命的保障。寻找到一种提高硬度和耐磨性能,同时零件表面耐热性能高的中低含量的合金钢就显的非常重要。专利技术人依靠在本领域的多年实践和理论经验,提出一种全新的合金钢配方,该配方能很好的解决了现有生产汽车配件钢材的缺点。
技术实现思路
本专利技术的目的是提供一种能够克服现有生产汽车部件钢材中硬度、耐磨性能及表面耐热性能不足的合金钢。本专利技术目的是通过以下技术方案实现的:一种高耐磨合金钢,该合金钢的重量百分比是:0.45-0.52%的碳,0.24-0.25%的硅,0.3-0.35%的锰,0.3-0.5%的铬,0.6-1.0%的镍,0.42%的铜,0.02%的锆,0.01%的钪,0.01%的钇,0.01%的钴,0.03%的钼,0.06%的钴,0.08%的矶,0.6%的钨,0.0001%的钛,0.003%的硼余量为铁。本专利技术的有益效果是:通过正火过程获取大量的珠光基体,并通过选择230±20℃的盐浴等温淬火,使合金钢的奥氏体转变成下贝氏体组织,使得合金硬度、耐磨性能及表面耐热性能均得到很大的提高。具体实施方式以下通过具体实施例来解释本专利技术,应当理解的是,本专利技术的具体实施例仅能用来解释本专利技术而不能用来解释为对本专利技术的限制。所述高耐磨合金钢的制备方法,包括以下步骤:1)按照重量百分比为0.45-0.52%的碳,0.24-0.25%的硅,0.3-0.35%的锰,0.3-0.5%的铬,0.6-1.0%的镍,0.42%的铜,0.02%的锆,0.01%的钪,0.01%的钇,0.01%的钴,0.03%的钼,0.06%的钴,0.08%的矾,0.6%的钨,0.0001%的钛,0.003%的硼余量为铁进行配料;2)通过中频感应炉熔炼制备合金钢;3)将合金钢进行正火和等温淬火处理;所述淬火分两阶段等温淬火,第一阶段采用采用230±20℃盐浴等温淬火处理至500-550℃,淬火速度保持在20-25℃每秒钟;第二阶段为水溶液淬火,水溶液保持在75-80℃,淬火速度保持在25-30℃每秒,淬火温度到130-150℃;然后回火处理,回火温度为180-220℃并保温2小时,然后自然冷却。上述合金钢制备方法,其中合金钢通过正火和等温淬火处理,。这样一方面获得较高的珠光体基体,细化组织,提高材料的硬度和耐磨性能;另一方面,通过长期保持在下贝氏体转变区的等温淬火,使合金实现奥氏体的等温转变,获得下贝氏体组织。实施例一一种高耐磨合金钢,该合金钢的重量百分比是:0.45%的碳,0.24%的硅,0.3%的锰,0.3%的铬,0.6%的镍,0.42%的铜,0.02%的锆,0.01%的钪,0.01%的钇,0.01%的钴,0.03%的钼,0.06%的钴,0.08%的矾,0.6%的钨,0.0001%的钛,0.003%的硼余量为铁。所述高耐磨合金钢的制备方法,包括以下步骤:1)按照重量百分比为0.45-0.52%的碳,0.24-0.25%的硅,0.3-0.35%的锰,0.3-0.5%的铬,0.6-1.0%的镍,0.42%的铜,0.02%的锆,0.01%的钪,0.01%的钇,0.01%的钴,0.03%的钼,0.06%的钴,0.08%的矾,0.6%的钨,0.0001%的钛,0.003%的硼余量为铁进行配料;2)通过中频感应炉熔炼制备合金钢;3)将合金钢进行正火和等温淬火处理;所述淬火分两阶段等温淬火,第一阶段采用采用230±20℃盐浴等温淬火处理至500-550℃,淬火速度保持在20-25℃每秒钟;第二阶段为水溶液淬火,水溶液保持在75-80℃,淬火速度保持在25-30℃每秒,淬火温度到130-150℃;然后回火处理,回火温度为180-220℃并保温2小时,然后自然冷却。上述合金钢制备方法,其中合金钢通过正火和等温淬火处理,。这样一方面获得较高的珠光体基体,细化组织,提高材料的硬度和耐磨性能;另一方面,通过长期保持在下贝氏体转变区的等温淬火,使合金实现奥氏体的等温转变,获得下贝氏体组织。对得到的铸态合金钢试样做金相组织观察,发现其组织为珠光体组织和下贝氏组织。对得到的合金进行硬度检测,硬度检测值HRC55。在本专利技术的以下实施例中,对得到的铸态合金钢试样做金相组织观察,均发现其组织为珠光体组织和下贝氏组织。对得到的合金进行硬度检测,硬度检测值HRC54-57。在本专利技术的以下实施例中,合金钢的制备方法均相同,所不同的仅是低合金钢的各元素的组成,因此在以下的实施例中,仅描述合金钢的各元素的的重量百分比。实施例二一种高耐磨合金钢,该合金钢的重量百分比是:0.52%的碳,0.25%的硅,0.35%的锰,0.5%的铬,1.0%的镍,0.42%的铜,0.02%的锆,0.01%的钪,0.01%的钇,0.01%的钴,0.03%的钼,0.06%的钴,0.08%的矾,0.6%的钨,0.0001%的钛,0.003%的硼余量为铁。对得到的合金进行硬度检测,硬度检测值HRC57。实施例三一种高耐磨合金钢,该合金钢的重量百分比是:0.50%的碳,0.24%的硅,0.32%的锰,0.4%的铬,0.8%的镍,0.42%的铜,0.02%的锆,0.01%的钪,0.01%的钇,0.01%的钴,0.03%的钼,0.06%的钴,0.08%的矾,0.6%的钨,0.0001%的钛,0.003%的硼余量为铁。依实施例一的制造过程制造,对得到的合金进行硬度检测,硬度检测值HRC62。对得到的铸态合金钢试样做金相组织观察,发现其组织大部分为珠光体组织和下贝氏组织。当用于制造汽车的刹车装置部件时,优选该实施例。本专利技术不局限于上述特定实施例,在不背离本专利技术的情况下,本领域技术人员可根据本专利技术做出各种相应改变,但这些相应改变都应属于本专利技术所要求保护范围之内。本文档来自技高网...
【技术保护点】
一种高耐磨合金钢,其特征在于:该合金钢的重量百分比是,0.45‑0.52%的碳,0.24‑0.25%的硅,0.3‑0.35%的锰,0.3‑0.5%的铬,0.6‑1.0%的镍,0.42%的铜,0.01%的钪,0.01%的钇,0.02%的锆,0.01%的钴,0.03%的钼,0.06%的钴,0.08%的矾,0.6%的钨,0.0001%的钛,0.003%的硼余量为铁。
【技术特征摘要】
1.一种高耐磨合金钢,其特征在于:该合金钢的重量百分比是,0.45-0.52%的碳,0.24-0.25%的硅,0.3-0.35%的锰,0.3-0.5%的铬,0.6-1.0%的镍,0....
【专利技术属性】
技术研发人员:顾建,
申请(专利权)人:顾建,
类型:发明
国别省市:浙江;33
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