As Lu Jing and others walked into the heart of the mountain, a wave of heat suddenly hit their faces, and the hair of the three people was a little curled.
In the open space not far away, a huge furnace with a height of four people was burning brightly red. Because the temperature underground was too high, the rock formations under the giant furnace were even burned and turned into a pool of molten metal. The slurry enveloped the giant furnace.
"I'm sorry, I'm helping Si Tianjian build a batch of armors, and I've activated the earth fire to the maximum, so it may be a little hot here, so you may have to bear with it."
Chi, who was leading the way, turned around and said, but she seemed to be used to such a temperature and didn't care much. She just told Lu Jing and the others not to get too close to the giant furnace, and then rode the iron rod to the giant furnace. In front of the furnace.
He first took a look inside to confirm that the materials he threw in were being refined. Then he walked to a small pool not far away and grabbed a handful of shining silver from a row of stone boxes placed there. thing.
When Chi returned to the three people, he spread his palms and said proudly.
"This is my newly discovered material. Its hardness is unparalleled in the world, far superior to ordinary fine iron. I plan to use it to build the hardest weapon in the world. As long as I can succeed, all the treasures in the world will become worthless." not worth."
"Is this... silver?" Yang Tao curiously grabbed a small piece from Chi's hand. After taking it, he found that although the two looked similar, the weight seemed to be almost three points lighter than the same volume of silver. one.
Then he tried to use this small shiny piece of silver to scratch on the stone wall, and sure enough, he easily made a mark on the stone wall.
So Yang Tao increased the strength on his fingers, wanting to see how deep the mark could be made by this small piece of silver. However, he did not expect that not long after he exerted his strength, the small piece of silver actually snapped from the break. opened.
Yang Tao couldn't help but look stunned.
But Chi seemed to have realized that such a situation would happen, and said, "Although this thing is hard, it is very brittle, probably because the impurities in it have not been completely removed. I estimate that the iron rod will have to eat at least a few more times." A hundred times will make it purer.”
However, before Chi finished speaking, Lu Jing shook his head and said, "I think it is quite pure."
"Why do you say that?" Chi frowned.
Her voice didn't sound too happy, because she was the first to discover this small piece of silver, and Chi naturally felt that no one in the world should know more about this thing than she did.
What's more, not long after Lu Jing got these small pieces of silver, he didn't even hold his hands over his hands, but he dared to refute her, which made Chi's impression of Lu Jing drop a lot.
If it weren't for the fact that he didn't know what the relationship between the young man in front of him and Ye Gongmei was, Chi might have spoken out to drive away this arrogant and ignorant guy.
But Chi's gaze towards Lu Jing was indeed getting worse and worse, "You'd better give me a defensible reason."
Lu Jing was not in a hurry when he heard this. He had just tried scratching the stone wall with these small pieces of silver. He even scratched a handful of abandoned treasure weapons that he randomly picked up in the corridor behind him and left them on it. trace.
Looking closely at the small piece of silver, there was almost no change in the position of the head. In terms of hardness, it was really amazing. However, if you tried to break it from both sides, it was easy to break, which made Lu Jing further sure. What exactly is this thing.
--chromium.
It is one of the hardest metals in the world. From this point of view, what Chi said before is quite good.
However, chromium itself is also very brittle, which has nothing to do with purity. This is the material property of chromium itself, so it is not realistic to use pure chromium as a weapon.
In fact, Chi's initial starting point was wrong. Pure metals themselves have their own flaws. The purer the metal, the less suitable it is to be used directly as a weapon.
Of course, this cannot be blamed on Ye Gongmei's blind command. Firstly, Ye Gongmei, a beast master, does not know much about materials science. Secondly, due to the limitations of the times, most blacksmiths and weapon refiners in this era are full of ideas. They are all thinking about how to purify it from the ore.
Therefore, both Ye Gongmei and Chi subconsciously believe that the purer the material, the better.
In Lu Jing's previous life, it was not until the 20th century that humans really began to master alloy technology and be able to mass-produce steel. Before that, only a few swordsmiths in a very small area were able to create excellent steel blades, and every Every successful forging also has a certain element of luck in it.
But on the other hand, Lu Jing couldn't help but admire Chi.
Because as far as he knows, although chromium is widely distributed in the earth's crust, it mostly exists in the form of chromite in nature. With the current technical level, it is almost impossible to directly extract chromium.
Of course, it was difficult for Lu Jing to tell Chi directly the truth behind this. Firstly, he could not explain to Chi, Xia Huai and Yang Tao where this knowledge came from. Secondly, even if he told Chi, Chi might not believe it.
So Lu Jing thought for a while and asked Chi directly, "Do you have pure iron here?"
"Yes." Chi nodded, and then said proudly, "The armor I refined for Si Tianjian was made of the purest iron. The armor made of it is extremely strong. I still have some stock here, but... you What do you want to use them for?”
Lu Jingxin said, sister, this armor of yours is not pure iron. It must be mixed with carbon elements, making it steel, the most commonly used alloy in his previous life. Otherwise, it would not be so strong, just because carbon elements are usually in flames. To the naked eye, not see.
Even the so-called master of weapon refinement cannot understand atomic matters.
Steel is not that easy to train, especially low-carbon steel suitable for weapons, which is very difficult to train. The proportion of carbon elements must be controlled at one percent.
This is also the reason why there are so few outstanding swordsmiths. Their method of refining low-carbon steel has always been passed down from a single source.
From this point of view, Chi and her master's smelting skills are indeed very powerful.
But what Lu Jing wanted to make at this moment was not ordinary steel. He still remembered that a popular materials science book he had read as a leisure book in high school once said that there is an alloy that is made of iron, chromium, and carbon. composed of elements.
It just so happened that Lu Jing now had iron and chromium in his hands. Together with the carbon in the air, the materials were all ready to go. However, Lu Jing also forgot what the specific proportions of that thing were.
Lu Jing simply divided the iron and chromium in his hand into several parts, and the weight of chromium was reduced by the same amount. Then he pushed the pile of things to Chi beside him and said, "Come and do it, just follow the instructions you gave to the Secretary before." Just practice the Heavenly Prison Face Armor method."
Chi looked a little doubtful, but she still took the pile of things. She was extremely obsessed with refining weapons, and nothing made her happier than refining weapons, especially when there were new directions to try.
