Abstract: A hot rolled steel sheet having a chemical composition including, in weight %: 0.15%?C?0.20%, 0.50%?Mn?2.00%, 0.25%?Si?1.25%, 0.10%?Al?1.00%, with 1.00%?(Al+Si)?2.00%, 0.001%?Cr?0.250%, P?0.02%, S?0.005%, N?0.008%, and optionally one or more elements among: 0.005%?Mo?0.250%, 0.005%?V?0.250%, 0.0001%?Ca?0.003% and 0.001%?Ti?0.025%, the remainder being Fe and unavoidable impurities, and wherein the microstructure includes in surface fraction, ferrite and bainite, the sum of which being greater than 5% and strictly lower than 20%, the remainder consisting of tempered martensite.

Abstract: A process for manufacturing a press hardened laser welded steel part, includes providing at least one first steel sheet with a composition containing, by weight 0.062?C?0.095%, the at least one first steel sheet precoated with a metallic precoating of aluminum, or aluminum-based alloy, or aluminum alloy; providing at least one second steel sheet with a composition containing, by weight, from 0.065 to 0.38% of carbon, the at least one second steel sheet precoated with a metallic precoating of aluminum, or aluminum-based alloy, or aluminum alloy; removing a portion of a thickness of the aluminum precoating at upper and lower sides along one side of a periphery of the at least one first steel sheet and the at least one second steel sheet; creating a welded blank by laser welding the at least one first steel sheet and the at least one second steel sheet, such that an aluminum content in a weld metal is lower than 0.

Abstract: A method of production of a hot rolled steel sheet having a composition including the elements, expressed in percentage by weight 0.11%?Carbon?0.16%, 1%?Manganese?2%, 0.1%?Silicon?0.7%, 0.02%?Aluminum?0.1%, 0.15%?Molybdenum?0.4%, 0.15%?Vanadium?0.4%, 0.002%?Phosphorus?0.02%, 0%?Sulfur?0.005%, 0%?Nitrogen?0.01%, and can contain one or more of the following optional elements 0%?Chromium?0.5%, 0%?Niobium?0.05%, 0.0001%?Calcium?0.005%, 0%?Boron?0.001%, 0%?Magnesium?0.0010%, 0%?Titanium?0.01%, with 0.3%?Mo+V+Nb?0.6%, the remainder composition being composed of iron and unavoidable impurities, the microstructure of steel sheet including in area fraction, 70% to 90% Bainite, 10% to 25% Ferrite wherein the cumulated amounts of Bainite and Ferrite is at least 90% and a cumulated amount of Residual Austenite and Martensite is between 0% and 10%.

Abstract: A process for manufacturing a press hardened laser welded steel part, includes providing at least one first steel sheet with a composition containing, by weight 0.062?C?0.095%, the at least one first steel sheet precoated with a metallic precoating of aluminum, or aluminum-based alloy, or aluminum alloy. providing at least one second steel sheet with a composition containing, by weight, from to 0.38% of carbon, the at least one second steel sheet precoated with a metallic precoating of aluminum, or aluminum-based alloy, or aluminum alloy; removing a portion of a thickness of the aluminum precoating at upper and lower sides along one side of a periphery of the at least one first steel sheet and the at least one second steel sheet; creating a welded blank by laser welding the at least one first steel sheet and the at least one second steel sheet, such that an aluminum content in a weld metal is lower than 0.

Abstract: A hot rolled steel sheet having a composition including the elements, expressed in percentage by weight 0.11%?Carbon?0.16%, 1%?Manganese?2%, 0.1%?Silicon?0.7%, 0 02%?Aluminum?0.1%, 0.15%?Molybdenum?0.4%, 0.15%?Vanadium?0.4%, 0.002%?Phosphorus?0.02%, 0%?Sulfur?0.005%, 0%?Nitrogen?0.01%, and can contain one or more of the following optional elements 0%?Chromium?0.5%, 0%?Niobium?0.05%, 0.0001%?Calcium?0.005%, 0%?Boron?0.001%, 0%?Magnesium?0.0010%, 0%?Titanium?0.01%, with 0.3%?Mo+V+Nb?0.6%, the remainder composition being composed of iron and unavoidable impurities, the microstructure of steel sheet including in area fraction, 70% to 90% Bainite, 10% to 25% Ferrite wherein the cumulated amounts of Bainite and Ferrite is at least 90% and a cumulated amount of Residual Austenite and Martensite is between 0% and 10%.

Abstract: A process for manufacturing a press hardened laser welded steel part, includes providing at least one first steel sheet with a composition containing, by weight 0.062?C?0.095%, the at least one first steel sheet precoated with a metallic precoating of aluminum, or aluminum-based alloy, or aluminum alloy. providing at least one second steel sheet with a composition containing, by weight, from to 0.38% of carbon, the at least one second steel sheet precoated with a metallic precoating of aluminum, or aluminum-based alloy, or aluminum alloy; removing a portion of a thickness of the aluminum precoating at upper and lower sides along one side of a periphery of the at least one first steel sheet and the at least one second steel sheet; creating a welded blank by laser welding the at least one first steel sheet and the at least one second steel sheet, such that an aluminum content in a weld metal is lower than 0.

Abstract: A press hardened steel part is provided. The steel of the part has a chemical composition including, in weight: 0.062%?C?0.095%, 1.4%?Mn?1.9%, 0.2%?Si?0.5%, 0.020%?Al?0.070%, 0.02%?Cr?0.1%, wherein: 1.5%?(C+Mn+Si+Cr)?2.7%, 0.040%?Nb?0.060%, 3.4×N?Ti?8×N wherein: 0.044%?(Nb+Ti)?0.090%, 0.0005?B?0.004%, 0.001%?N?0.009%, 0.0005%?S?0.003%, 0.001%?P?0.020%, optionally: 0.0001%?Ca?0.003%, and the remainder being Fe and unavoidable impurities. The microstructure of the part includes, in a majority of the part, in surface fractions: less than 40% of bainite, less than 5% of austenite, less than 5% of ferrite, and a remainder being martensite. The martensite is fresh martensite and self-tempered martensite.

Abstract: A process for manufacturing a press hardened steel part is provided. The steel of the part has a chemical composition including, in weight: 0.062%?C?0.095%, 1.4%?Mn?1.9%, 0.2%?Si?0.5%, 0.020%?Al?0.070%, 0.02%?Cr?0.1%, wherein: 1.5%?(C+Mn+Si+Cr)?2.7%, 0.040%?Nb?0.060%, 3.4×N?Ti?8×N wherein: 0.044%?(Nb+Ti)?0.090%, 0.0005?B?0.004%, 0.001%?N?0.009%, 0.0005%?S?0.003%, 0.001%?P?0.020%, optionally: 0.0001%?Ca?0.003%, and the remainder being Fe and unavoidable impurities. The process includes hot forming the heated blank in the forming press so as to obtain a formed part and cooling the formed part at a cooling rate CR1 between 40 and 360°C/s in a temperature range from 750 to 450°C. and at a cooling rate CR2 between 15 to 150°C/s in a temperature range from 450°C to 250°C. wherein CR2<CR1.

Abstract: A hot rolled steel sheet having a chemical composition including, in weight %: 0.15%?C?0.20%, 0.50%?Mn?2.00%, 0.25%?Si?1.25%, 0.10%?Al?1.00%, with 1.00%?(Al+Si)?2.00%, 0.001%?Cr?0.250%, P?0.02%, S?0.005%, N?0.008%, and optionally one or more elements among: 0.005%?Mo?0.250%, 0.005%?V?0.250%, 0.0001%?Ca?0.003% and 0.001%?Ti?0.025%, the remainder being Fe and unavoidable impurities, and wherein the microstructure includes in surface fraction, ferrite and bainite, the sum of which being greater than 5% and strictly lower than 20%, the remainder consisting of tempered martensite.

Abstract: A press hardened steel part is provided. The steel of the part has a chemical composition including, in weight: 0.062%?C?0.095%, 1.4%?Mn?1.9%, 0.2%?Si?0.5%, 0.020%?Al?0.070%, 0.02%?Cr?0.1%, wherein: 1.5%?(C+Mn+Si+Cr)?2.7%, 0.040%?Nb?0.060%, 3.4×N?Ti?8×N wherein: 0.044%?(Nb+Ti)?0.090%, 0.0005?B?0.004%, 0.001%?N?0.009%, 0.0005%?S?0.003%, 0.001%?P?0.020%, optionally: 0.0001%?Ca?0.003%, and the remainder being Fe and unavoidable impurities. The microstructure of the part includes, in a majority of the part, in surface fractions: less than 40% of bainite, less than 5% of austenite, less than 5% of ferrite, and a remainder being martensite. The martensite is fresh martensite and self-tempered martensite.

Abstract: A hot rolled steel sheet having a composition including the elements, expressed in percentage by weight 0.11%?Carbon?0.16%, 1%?Manganese?2%, 0.1%?Silicon?0.7%, 0 02%?Aluminum?0.1%, 0.15%?Molybdenum?0.4%, 0.15%?Vanadium?0.4%, 0.002%?Phosphorus?0.02%, 0%?Sulfur?0.005%, 0%?Nitrogen?0.01%, and can contain one or more of the following optional elements 0%?Chromium?0.5%, 0%?Niobium?0.05%, 0.0001%?Calcium?0.005%, 0%?Boron?0.001%, 0%?Magnesium?0.0010%, 0%?Titanium?0.01%, with 0.3%?Mo+V+Nb?0.6%, the remainder composition being composed of iron and unavoidable impurities, the microstructure of steel sheet including in area fraction, 70% to 90% Bainite, 10% to 25% Ferrite wherein the cumulated amounts of Bainite and Ferrite is at least 90% and a cumulated amount of Residual Austenite and Martensite is between 0% and 10%.

Abstract: A press hardened steel part is provided. The steel of the part has a chemical composition including, in weight: 0.062%?C?0.095%, 1.4%?Mn?1.9%, 0.2%?Si?0.5%, 0.020%?Al?0.070%, 0.02%?Cr?0.1%, wherein: 1.5%?(C+Mn+Si+Cr)?2.7%, 0.040%?Nb?0.060%, 3.4×N?Ti?8×N wherein: 0.044%?(Nb+Ti)?0.090%, 0.0005?B?0.004%, 0.001%?N?0.009%, 0.0005%?S?0.003%, 0.001%?P?0.020%, optionally: 0.0001%?Ca?0.003%, and the remainder being Fe and unavoidable impurities. The microstructure of the part includes, in a majority of the part, in surface fractions: less than 40% of bainite, less than 5% of austenite, less than 5% of ferrite, and a remainder being martensite. The martensite is fresh martensite and self-tempered martensite.

Abstract: An approach is provided for controlling access to contents displayed on a mobile device. Based on a security rule, the contents are divided into first and second sets. A first user is authorized to access the first set and not authorized to access the second set. The first set is displayed on a physical, transparent, touch functionality-enabled first layer of a display of the mobile device. The second set is displayed on a physical, opaque, touch functionality-lacking second layer of the display. A security level of a second user is determined after the first user stops using and the second user starts using the mobile device. Based on the security level, the contents are modified so that item(s) are removed from the first set and placed in the second set and/or other item(s) are removed from the second set and placed in the first set.

Abstract: An approach is provided for controlling access to contents displayed on a mobile device. A security rule specifies time periods during which a first user is and is not permitted to access items in the contents. Based on the security rule, the contents are divided into first and second sets. The first set is displayed on a first, physical, transparent display layer of a display of the mobile device. The first layer has touch functionality enabled. The second set is displayed on a second, physical layer of the display and is viewed by the first user through the first layer. The second layer is a transparent or opaque display that does not have touch functionality. Based on a second level of security determined for a second user, the divider contents are modified by switching item(s) between the first and second sets.